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Ciesielczuk J, Fabiańska MJ, Gaidzik K, Nádudvari Á, Misz-Kennan M, Abramowicz A. Botryoidal and spherulitic hematite as experimental evidence of highly acidic conditions in burning coal-waste dumps and potentially on Mars. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 932:172759. [PMID: 38670352 DOI: 10.1016/j.scitotenv.2024.172759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 04/02/2024] [Accepted: 04/23/2024] [Indexed: 04/28/2024]
Abstract
In the extreme setting of burning coal-waste dumps in the Upper Silesian Coal Basin in Poland, botryoidal and spherulitic hematite occurs in association with sulphates and chlorides. A series of simple experiments aimed at replicating the conditions leading to the formation of hematite spherules on the burning dumps are described. Goethite synthesised in the laboratory, mixed with various combinations of other reactants, was heated in a heating chamber or a tubular furnace. Temperature, duration of heating, water and oxygen access, and pH were experimental variables. The results show that hematite may form spherules from goethite where access to oxygen is limited and where conditions are strongly acidic. The spherulitic shape of hematite produced due to dynamically changing physicochemical conditions in the burning dumps can be an indicator of an extremely acidic environment during the closing stages of coal-waste self-heating. The conditions of hematitic-spherule formation on burning coal-waste dumps may apply in a variety of other unrelated settings, e.g., waning volcanism, sulphuric acid speleologenesis and even the formation of blueberries on Mars.
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Affiliation(s)
- Justyna Ciesielczuk
- Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland.
| | - Monika J Fabiańska
- Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland
| | - Krzysztof Gaidzik
- Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland
| | - Ádám Nádudvari
- Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland
| | - Magdalena Misz-Kennan
- Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland
| | - Anna Abramowicz
- Institute of Earth Sciences, Faculty of Natural Sciences, University of Silesia in Katowice, Będzińska 60, 41-200 Sosnowiec, Poland
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2
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Liu J, Michalski JR, Gao W, Schröder C, Li YL. Freeze-thaw cycles drove chemical weathering and enriched sulfates in the Burns formation at Meridiani, Mars. SCIENCE ADVANCES 2024; 10:eadi1805. [PMID: 38232168 DOI: 10.1126/sciadv.adi1805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 12/19/2023] [Indexed: 01/19/2024]
Abstract
Sulfate-rich sedimentary rocks explored by the Opportunity rover during its 14-year surface mission at Meridiani Planum provide an invaluable window into the thousands of sulfate deposits detected on Mars via remote sensing. Existing models explaining the formation of martian sulfates can be generally described as either bottom-up, groundwater-driven playa settings or top-down icy chemical weathering environments. Here, we propose a hybrid model involving both bottom-up and top-down processes driven by freeze-thaw cycles. Freezing leads to cryo-concentration of acidic fluids from precipitations at the surface, facilitating rapid chemical weathering despite low temperatures. Cryosuction causes the upward migration of vadose water and even groundwater with dissolved ions, resulting in the accumulation of ions in near-surface environments. Evaporation precipitates salts, but leaching separates chlorides from sulfates during the thawing period. Freeze-thaw cycles, therefore, can enrich sulfates at the surface. While freeze-thaw is more commonly understood as a mechanism of physical weathering, we suggest that it is a fundamental aspect of chemical weathering on Mars.
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Affiliation(s)
- Jiacheng Liu
- Department of Earth Sciences, the University of Hong Kong, Hong Kong
- Laboratory for Space Research, the University of Hong Kong, Hong Kong
| | - Joseph R Michalski
- Department of Earth Sciences, the University of Hong Kong, Hong Kong
- Laboratory for Space Research, the University of Hong Kong, Hong Kong
| | - Wenyuan Gao
- Department of Geology, Northeastern University, Shenyang, China
| | - Christian Schröder
- Biological and Environmental Sciences, University of Stirling, Stirling, FK9 4LA, UK
| | - Yi-Liang Li
- Department of Earth Sciences, the University of Hong Kong, Hong Kong
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3
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Re-Visiting the Quantification of Hematite by Diffuse Reflectance Spectroscopy. MINERALS 2022. [DOI: 10.3390/min12070872] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Hematite concentration is an important climatic proxy for environmental (climatic) studies of soils and sediments. However, the accurate quantification of naturally occurring hematite has always been a difficult question, especially for those areas with lower hematite concentrations. Diffuse reflectance spectroscopy (DRS) is an effective method for hematite identification and quantification with lower detection limits. In this study, we synthesized a set of samples with well-determined concentrations to explore the exact detectable range of hematite and propose the most effective transfer function between the DRS proxy and hematite concentration. In addition, natural sediments from Inland Asia and the Western Pacific Ocean were used to further test the feasibility of the new transfer function. Results show that the lowest DRS detection limit for hematite could reach ~0.00078%, but is affected by the natural matrix. We also find that the second derivative of the Kubelka–Munk (K–M) function is monotonically correlated with the hematite concentration (0.00078%–100%), but ambiguities exist for the first derivative. Therefore, the second derivative of the K–M function is highly suggested for the hematite quantification, especially when concentration exhibits a wide range of variations. This study provides important references for the application of hematite proxy and promotes the popularization and development of the DRS method.
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4
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Rolling Ironstones from Earth and Mars: Terrestrial Hydrothermal Ooids as a Potential Analogue of Martian Spherules. MINERALS 2021. [DOI: 10.3390/min11050460] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
High-resolution images of Mars from National Aeronautics and Space Administration (NASA) rovers revealed mm-size loose haematite spherulitic deposits (nicknamed “blueberries”) similar to terrestrial iron-ooids, for which both abiotic and biotic genetic hypotheses have been proposed. Understanding the formation mechanism of these haematite spherules can thus improve our knowledge on the possible geologic evolution and links to life development on Mars. Here, we show that shape, size, fabric and mineralogical composition of the Martian spherules share similarities with corresponding iron spherules currently forming on the Earth over an active submarine hydrothermal system located off Panarea Island (Aeolian Islands, Mediterranean Sea). Hydrothermal fluids associated with volcanic activity enable these terrestrial spheroidal grains to form and grow. The recent exceptional discovery of a still working iron-ooid source on the Earth provides indications that past hydrothermal activity on the Red Planet is a possible scenario to be considered as the cause of formation of these enigmatic iron grains.
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5
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Rogers AD, Warner NH, Golombek MP, Head JW, Cowart JC. Areally Extensive Surface Bedrock Exposures on Mars: Many Are Clastic Rocks, Not Lavas. GEOPHYSICAL RESEARCH LETTERS 2018; 45:1767-1777. [PMID: 30598561 PMCID: PMC6310033 DOI: 10.1002/2018gl077030] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Areally extensive exposures of intact olivine/pyroxene-enriched rock, as well as feldspar-enriched rock, are found in isolated locations throughout the Martian highlands. The petrogenetic origin(s) of these rock units are not well understood, but some previous studies favored an effusive volcanic origin partly on the basis of distinctive composition and relatively high thermal inertia. Here we show that the regolith development, crater retention, and morphological characteristics for many of these "bedrock plains" are not consistent with competent lavas and reinterpret the high thermal inertia orbital signatures to represent friable materials that are more easily kept free of comminution products through eolian activity. Candidate origins include pyroclastic rocks, impact-generated materials, or detrital sedimentary rocks. Olivine/pyroxene enrichments in bedrock plains relative to surrounding materials could have potentially formed through deflation and preferential removal of plagioclase.
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Affiliation(s)
- A Deanne Rogers
- Department of Geosciences, Stony Brook University, Stony Brook, NY, USA
| | - Nicholas H Warner
- Department of Geological Sciences, State University of New York at Geneseo, Geneseo, NY, USA
| | - Matthew P Golombek
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA
| | - James W Head
- Department of Earth, Environmental and Planetary Sciences, Brown University, Providence, RI, USA
| | - Justin C Cowart
- Department of Geosciences, Stony Brook University, Stony Brook, NY, USA
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6
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Wu L, Brucker RP, Beard BL, Roden EE, Johnson CM. Iron isotope characteristics of Hot Springs at Chocolate Pots, Yellowstone National Park. ASTROBIOLOGY 2013; 13:1091-1101. [PMID: 24219169 DOI: 10.1089/ast.2013.0996] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Chocolate Pots Hot Springs in Yellowstone National Park is a hydrothermal system that contains high aqueous ferrous iron [∼0.1 mM Fe(II)] at circumneutral pH conditions. This site provides an ideal field environment in which to test our understanding of Fe isotope fractionations derived from laboratory experiments. The Fe(III) oxides, mainly produced through Fe(II) oxidation by oxygen in the atmosphere, have high ⁵⁶Fe/⁵⁴Fe ratios compared with the aqueous Fe(II). However, the degree of fractionation is less than that expected in a closed system at isotopic equilibrium. We suggest two explanations for the observed Fe isotope compositions. One is that light Fe isotopes partition into a sorbed component and precipitate out on the Fe(III) oxide surfaces in the presence of silica. The other explanation is internal regeneration of isotopically heavy Fe(II) via dissimilatory Fe(III) reduction farther down the flow path as well as deeper within the mat materials. These findings provide evidence that silica plays an important role in governing Fe isotope fractionation factors between reduced and oxidized Fe. Under conditions of low ambient oxygen, such as may be found on early Earth or Mars, significantly larger Fe isotope variations are predicted, reflecting the more likely attainment of Fe isotope equilibrium associated with slower oxidation rates under low-O₂ conditions.
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Affiliation(s)
- Lingling Wu
- 1 Department of Geoscience, University of Wisconsin-Madison , Madison, Wisconsin, USA
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7
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Robbins SJ, Hynek BM. A new global database of Mars impact craters ≥1 km: 2. Global crater properties and regional variations of the simple-to-complex transition diameter. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011je003967] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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8
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Mangold N, Adeli S, Conway S, Ansan V, Langlais B. A chronology of early Mars climatic evolution from impact crater degradation. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011je004005] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Chojnacki M, Burr DM, Moersch JE, Michaels TI. Orbital observations of contemporary dune activity in Endeavor crater, Meridiani Planum, Mars. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010je003675] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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10
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Tirsch D, Jaumann R, Pacifici A, Poulet F. Dark aeolian sediments in Martian craters: Composition and sources. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2009je003562] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Golombek M, Robinson K, McEwen A, Bridges N, Ivanov B, Tornabene L, Sullivan R. Constraints on ripple migration at Meridiani Planum from Opportunity and HiRISE observations of fresh craters. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010je003628] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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12
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Wiseman SM, Arvidson RE, Morris RV, Poulet F, Andrews-Hanna JC, Bishop JL, Murchie SL, Seelos FP, Des Marais D, Griffes JL. Spectral and stratigraphic mapping of hydrated sulfate and phyllosilicate-bearing deposits in northern Sinus Meridiani, Mars. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009je003354] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Moore JM, Bullock MA, Newsom H, Nelson M. Laboratory simulations of Mars evaporite geochemistry. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2008je003208] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Andrews-Hanna JC, Zuber MT, Arvidson RE, Wiseman SM. Early Mars hydrology: Meridiani playa deposits and the sedimentary record of Arabia Terra. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009je003485] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Seelos KD, Arvidson RE, Jolliff BL, Chemtob SM, Morris RV, Ming DW, Swayze GA. Silica in a Mars analog environment: Ka'u Desert, Kilauea Volcano, Hawaii. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009je003347] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Chojnacki M, Hynek BM. Geological context of water-altered minerals in Valles Marineris, Mars. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007je003070] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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17
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Johnson SS, Mischna MA, Grove TL, Zuber MT. Sulfur-induced greenhouse warming on early Mars. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007je002962] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Knoll AH, Jolliff BL, Farrand WH, Bell III JF, Clark BC, Gellert R, Golombek MP, Grotzinger JP, Herkenhoff KE, Johnson JR, McLennan SM, Morris R, Squyres SW, Sullivan R, Tosca NJ, Yen A, Learner Z. Veneers, rinds, and fracture fills: Relatively late alteration of sedimentary rocks at Meridiani Planum, Mars. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007je002949] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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19
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Griffes JL, Arvidson RE, Poulet F, Gendrin A. Geologic and spectral mapping of etched terrain deposits in northern Meridiani Planum. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006je002811] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- J. L. Griffes
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
- Center for Earth and Planetary Studies; National Air and Space Museum, Smithsonian Institution; Washington D. C. USA
| | - R. E. Arvidson
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - F. Poulet
- Institut d'Astrophysique Spatiale; Université Paris-Sud; Orsay France
| | - A. Gendrin
- Institut d'Astrophysique Spatiale; Université Paris-Sud; Orsay France
- Department of Geological Sciences; Brown University; Providence Rhode Island USA
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20
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Glotch TD, Rogers AD. Evidence for aqueous deposition of hematite- and sulfate-rich light-toned layered deposits in Aureum and Iani Chaos, Mars. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006je002863] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Seu R, Phillips RJ, Biccari D, Orosei R, Masdea A, Picardi G, Safaeinili A, Campbell BA, Plaut JJ, Marinangeli L, Smrekar SE, Nunes DC. SHARAD sounding radar on the Mars Reconnaissance Orbiter. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006je002745] [Citation(s) in RCA: 206] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Andrews-Hanna JC, Phillips RJ, Zuber MT. Meridiani Planum and the global hydrology of Mars. Nature 2007; 446:163-6. [PMID: 17344848 DOI: 10.1038/nature05594] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2006] [Accepted: 01/08/2007] [Indexed: 11/09/2022]
Abstract
The Opportunity Mars Exploration Rover found evidence for groundwater activity in the Meridiani Planum region of Mars in the form of aeolian and fluvial sediments composed of sulphate-rich grains. These sediments appear to have experienced diagenetic modification in the presence of a fluctuating water table. In addition to the extensive secondary aqueous alteration, the primary grains themselves probably derive from earlier playa evaporites. Little is known, however, about the hydrologic processes responsible for this environmental history-particularly how such extensive evaporite deposits formed in the absence of a topographic basin. Here we investigate the origin of these deposits, in the context of the global hydrology of early Mars, using numerical simulations, and demonstrate that Meridiani is one of the few regions of currently exposed ancient crust predicted to have experienced significant groundwater upwelling and evaporation. The global groundwater flow would have been driven primarily by precipitation-induced recharge and evaporative loss, with the formation of the Tharsis volcanic rise possibly playing a role through the burial of aquifers and induced global deformation. These results suggest that the deposits formed as a result of sustained groundwater upwelling and evaporation, rather than ponding within an enclosed basin. The evaporite formation coincided with a transition to more arid conditions that increased the relative impact of a deep-seated, global-scale hydrology on the surface evolution.
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Affiliation(s)
- Jeffrey C Andrews-Hanna
- McDonnell Center for the Space Sciences and the Department of Earth and Planetary Sciences, Washington University, St Louis, Missouri 63130, USA.
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23
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Grinspoon DH, Bullock MA. Astrobiology and Venus exploration. EXPLORING VENUS AS A TERRESTRIAL PLANET 2007. [DOI: 10.1029/176gm12] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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24
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Morris RV, Klingelhöfer G, Schröder C, Rodionov DS, Yen A, Ming DW, de Souza PA, Wdowiak T, Fleischer I, Gellert R, Bernhardt B, Bonnes U, Cohen BA, Evlanov EN, Foh J, Gütlich P, Kankeleit E, McCoy T, Mittlefehldt DW, Renz F, Schmidt ME, Zubkov B, Squyres SW, Arvidson RE. Mössbauer mineralogy of rock, soil, and dust at Meridiani Planum, Mars: Opportunity's journey across sulfate-rich outcrop, basaltic sand and dust, and hematite lag deposits. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006je002791] [Citation(s) in RCA: 183] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - G. Klingelhöfer
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - C. Schröder
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - D. S. Rodionov
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
- Space Research Institute IKI; Moscow Russia
| | - A. Yen
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - D. W. Ming
- NASA Johnson Space Center; Houston Texas USA
| | - P. A. de Souza
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
- CVRD Group; Rio de Janeiro Brazil
| | - T. Wdowiak
- Department of Physics; University of Alabama at Birmingham; Birmingham Alabama USA
| | - I. Fleischer
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - R. Gellert
- Department of Physics; University of Guelph; Guelph, Ontario Canada
| | - B. Bernhardt
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - U. Bonnes
- Darmstadt University of Technology; Darmstadt Germany
| | - B. A. Cohen
- Institute of Meteoritics; University of New Mexico; Albuquerque, NM USA
| | | | - J. Foh
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
- Darmstadt University of Technology; Darmstadt Germany
| | - P. Gütlich
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - E. Kankeleit
- Darmstadt University of Technology; Darmstadt Germany
| | - T. McCoy
- Department of Mineral Sciences, National Museum of Natural History; Smithsonian Institution; Washington, DC USA
| | | | - F. Renz
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - M. E. Schmidt
- Department of Mineral Sciences, National Museum of Natural History; Smithsonian Institution; Washington, DC USA
| | - B. Zubkov
- Space Research Institute IKI; Moscow Russia
| | - S. W. Squyres
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - R. E. Arvidson
- Department Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
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25
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Golombek MP, Grant JA, Crumpler LS, Greeley R, Arvidson RE, Bell JF, Weitz CM, Sullivan R, Christensen PR, Soderblom LA, Squyres SW. Erosion rates at the Mars Exploration Rover landing sites and long-term climate change on Mars. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006je002754] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. P. Golombek
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - J. A. Grant
- Center for Earth and Planetary Studies, National Air and Space Museum; Smithsonian Institution; Washington, DC USA
| | - L. S. Crumpler
- New Mexico Museum of Natural History and Science; Albuquerque New Mexico USA
| | - R. Greeley
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - R. E. Arvidson
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - J. F. Bell
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - C. M. Weitz
- Planetary Science Institute; Tucson Arizona USA
| | - R. Sullivan
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - P. R. Christensen
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | | | - S. W. Squyres
- Department of Astronomy; Cornell University; Ithaca New York USA
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26
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Arvidson RE, Poulet F, Morris RV, Bibring JP, Bell JF, Squyres SW, Christensen PR, Bellucci G, Gondet B, Ehlmann BL, Farrand WH, Fergason RL, Golombek M, Griffes JL, Grotzinger J, Guinness EA, Herkenhoff KE, Johnson JR, Klingelhöfer G, Langevin Y, Ming D, Seelos K, Sullivan RJ, Ward JG, Wiseman SM, Wolff M. Nature and origin of the hematite-bearing plains of Terra Meridiani based on analyses of orbital and Mars Exploration rover data sets. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2006je002728] [Citation(s) in RCA: 131] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. E. Arvidson
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - F. Poulet
- Institut d'Astrophysique Spatiale; Université Paris-Sud; Orsay France
| | | | - J.-P. Bibring
- Institut d'Astrophysique Spatiale; Université Paris-Sud; Orsay France
| | - J. F. Bell
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - S. W. Squyres
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - P. R. Christensen
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - G. Bellucci
- Istituto di Fisica dello Spazio Interplanetario; Istituto Nazionale di Astrofisica; Rome Italy
| | - B. Gondet
- Institut d'Astrophysique Spatiale; Université Paris-Sud; Orsay France
| | - B. L. Ehlmann
- School of Geography and Environment; University of Oxford; Oxford UK
| | | | - R. L. Fergason
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - M. Golombek
- Jet Propulsion Laboratory; Pasadena California USA
| | - J. L. Griffes
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - J. Grotzinger
- Geological and Planetary Sciences; California Institute of Technology; Pasadena California USA
| | - E. A. Guinness
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | | | | | - G. Klingelhöfer
- Institut für Anorganische und Analytische Chemie; Johannes Gutenberg-Universität; Mainz Germany
| | - Y. Langevin
- Institut d'Astrophysique Spatiale; Université Paris-Sud; Orsay France
| | - D. Ming
- NASA Johnson Space Center; Houston Texas USA
| | - K. Seelos
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - R. J. Sullivan
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - J. G. Ward
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - S. M. Wiseman
- Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - M. Wolff
- Space Science Institute; Boulder Colorado USA
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27
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Glotch TD, Bandfield JL. Determination and interpretation of surface and atmospheric Miniature Thermal Emission Spectrometer spectral end-members at the Meridiani Planum landing site. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005je002671] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Timothy D. Glotch
- Division of Geological and Planetary Science; California Institute of Technology; Pasadena California USA
| | - Joshua L. Bandfield
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
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28
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Fergason RL, Christensen PR, Bell JF, Golombek MP, Herkenhoff KE, Kieffer HH. Physical properties of the Mars Exploration Rover landing sites as inferred from Mini-TES-derived thermal inertia. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005je002583] [Citation(s) in RCA: 114] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Robin L. Fergason
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | | | - James F. Bell
- Department of Astronomy, Space Science Building; Cornell University; Ithaca New York USA
| | - Matthew P. Golombek
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
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29
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30
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McCollom TM, Hynek BM. A volcanic environment for bedrock diagenesis at Meridiani Planum on Mars. Nature 2005; 438:1129-31. [PMID: 16372002 DOI: 10.1038/nature04390] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2005] [Accepted: 10/28/2005] [Indexed: 11/08/2022]
Abstract
Exposed bedrocks at Meridiani Planum on Mars display chemical and mineralogical evidence suggesting interaction with liquid water. On the basis of morphological observations as well as high abundances of haematite and sulphate minerals, the rocks have been interpreted as sediments that were deposited in a shallow body of briny water with subsequent evaporation leaving behind the sulphate minerals. The iron-sulphur mineralization at Meridiani has also been inferred to be analogous to that produced during oxidative weathering of metal sulphide minerals, such as occurs at acid mine drainage sites. Neither of these interpretations, however, is consistent with the chemical composition of the rocks. Here we propose an alternative model for diagenesis of Meridiani bedrock that involves deposition of volcanic ash followed by reaction with condensed sulphur dioxide- and water-bearing vapours emitted from fumaroles. This scenario does not require prolonged interaction with a standing body of surface water and may have occurred at high temperatures. Consequently, the model invokes an environment considerably less favourable for biological activity on Mars than previously proposed interpretations.
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Affiliation(s)
- Thomas M McCollom
- Center for Astrobiology, University of Colorado, Boulder, Colorado 80309, USA.
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31
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Knauth LP, Burt DM, Wohletz KH. Impact origin of sediments at the Opportunity landing site on Mars. Nature 2005; 438:1123-8. [PMID: 16372001 DOI: 10.1038/nature04383] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2005] [Accepted: 10/26/2005] [Indexed: 11/09/2022]
Abstract
Mars Exploration Rover Opportunity discovered sediments with layered structures thought to be unique to aqueous deposition and with minerals attributed to evaporation of an acidic salty sea. Remarkable iron-rich spherules were ascribed to later groundwater alteration, and the inferred abundance of water reinforced optimism that Mars was once habitable. The layered structures, however, are not unique to water deposition, and the scenario encounters difficulties in accounting for highly soluble salts admixed with less soluble salts, the lack of clay minerals from acid-rock reactions, high sphericity and near-uniform sizes of the spherules and the absence of a basin boundary. Here we present a simple alternative explanation involving deposition from a ground-hugging turbulent flow of rock fragments, salts, sulphides, brines and ice produced by meteorite impact. Subsequent weathering by intergranular water films can account for all of the features observed without invoking shallow seas, lakes or near-surface aquifers. Layered sequences observed elsewhere on heavily cratered Mars and attributed to wind, water or volcanism may well have formed similarly. If so, the search for past life on Mars should be reassessed accordingly.
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Affiliation(s)
- L Paul Knauth
- Department of Geological Sciences, Arizona State University, Box 871404, Tempe, Arizona 85287-1404, USA.
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32
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Arvidson RE, Poulet F, Bibring JP, Wolff M, Gendrin A, Morris RV, Freeman JJ, Langevin Y, Mangold N, Bellucci G. Spectral Reflectance and Morphologic Correlations in Eastern Terra Meridiani, Mars. Science 2005; 307:1591-4. [PMID: 15718425 DOI: 10.1126/science.1109509] [Citation(s) in RCA: 142] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The Mars Express Observatoire pour la Minéralogie, l'Eau, les Glaces, et l'Activité (OMEGA) hyperspectral image data covering eastern Terra Meridiani indicate the ubiquitous presence of molecular water in etched terrain materials that disconformably overlie heavily cratered terrains and underlie the hematite-bearing plains explored by the Opportunity rover. Identification of crystalline water in kieserite (MgSO4.H2O) is linked to materials exposed in a valley and plateau to the north of hematite-bearing plains. The mineralogical similarities between the etched terrain deposits examined with OMEGA data and the layered rocks examined by Opportunity imply that the ancient aqueous environments inferred from analyses of the rover data extend over regional scales.
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Affiliation(s)
- R E Arvidson
- Department of Earth and Planetary Sciences, Washington University, St. Louis, MO 63130, USA.
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33
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Glotch TD. Geologic and mineralogic mapping of Aram Chaos: Evidence for a water-rich history. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004je002389] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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35
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Squyres SW, Arvidson RE, Bell JF, Brückner J, Cabrol NA, Calvin W, Carr MH, Christensen PR, Clark BC, Crumpler L, Marais DJD, d'Uston C, Economou T, Farmer J, Farrand W, Folkner W, Golombek M, Gorevan S, Grant JA, Greeley R, Grotzinger J, Haskin L, Herkenhoff KE, Hviid S, Johnson J, Klingelhöfer G, Knoll AH, Landis G, Lemmon M, Li R, Madsen MB, Malin MC, McLennan SM, McSween HY, Ming DW, Moersch J, Morris RV, Parker T, Rice JW, Richter L, Rieder R, Sims M, Smith M, Smith P, Soderblom LA, Sullivan R, Wänke H, Wdowiak T, Wolff M, Yen A. The Opportunity Rover's Athena science investigation at Meridiani Planum, Mars. Science 2004; 306:1698-703. [PMID: 15576602 DOI: 10.1126/science.1106171] [Citation(s) in RCA: 130] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The Mars Exploration Rover Opportunity has investigated the landing site in Eagle crater and the nearby plains within Meridiani Planum. The soils consist of fine-grained basaltic sand and a surface lag of hematite-rich spherules, spherule fragments, and other granules. Wind ripples are common. Underlying the thin soil layer, and exposed within small impact craters and troughs, are flat-lying sedimentary rocks. These rocks are finely laminated, are rich in sulfur, and contain abundant sulfate salts. Small-scale cross-lamination in some locations provides evidence for deposition in flowing liquid water. We interpret the rocks to be a mixture of chemical and siliciclastic sediments formed by episodic inundation by shallow surface water, followed by evaporation, exposure, and desiccation. Hematite-rich spherules are embedded in the rock and eroding from them. We interpret these spherules to be concretions formed by postdepositional diagenesis, again involving liquid water.
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Affiliation(s)
- S W Squyres
- Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, NY 14853, USA.
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36
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37
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Christensen PR, Wyatt MB, Glotch TD, Rogers AD, Anwar S, Arvidson RE, Bandfield JL, Blaney DL, Budney C, Calvin WM, Fallacaro A, Fergason RL, Gorelick N, Graff TG, Hamilton VE, Hayes AG, Johnson JR, Knudson AT, McSween HY, Mehall GL, Mehall LK, Moersch JE, Morris RV, Smith MD, Squyres SW, Ruff SW, Wolff MJ. Mineralogy at Meridiani Planum from the Mini-TES Experiment on the Opportunity Rover. Science 2004; 306:1733-9. [PMID: 15576609 DOI: 10.1126/science.1104909] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The Miniature Thermal Emission Spectrometer (Mini-TES) on Opportunity investigated the mineral abundances and compositions of outcrops, rocks, and soils at Meridiani Planum. Coarse crystalline hematite and olivine-rich basaltic sands were observed as predicted from orbital TES spectroscopy. Outcrops of aqueous origin are composed of 15 to 35% by volume magnesium and calcium sulfates [a high-silica component modeled as a combination of glass, feldspar, and sheet silicates (approximately 20 to 30%)], and hematite; only minor jarosite is identified in Mini-TES spectra. Mini-TES spectra show only a hematite signature in the millimeter-sized spherules. Basaltic materials have more plagioclase than pyroxene, contain olivine, and are similar in inferred mineral composition to basalt mapped from orbit. Bounce rock is dominated by clinopyroxene and is close in inferred mineral composition to the basaltic martian meteorites. Bright wind streak material matches global dust. Waterlain rocks covered by unaltered basaltic sands suggest a change from an aqueous environment to one dominated by physical weathering.
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Affiliation(s)
- P R Christensen
- Department of Geological Sciences, Arizona State University, Tempe, AZ 85287, USA.
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38
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Hynek BM. Implications for hydrologic processes on Mars from extensive bedrock outcrops throughout Terra Meridiani. Nature 2004; 431:156-9. [PMID: 15356623 DOI: 10.1038/nature02902] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2004] [Accepted: 07/28/2004] [Indexed: 11/08/2022]
Abstract
Grey haematite was recently detected in the Terra Meridiani region of Mars by the Thermal Emission Spectrometer onboard the Mars Global Surveyor spacecraft. The formation of haematite on Earth often requires liquid water to be present for long periods of time, making this an important target for deciphering the history of water on Mars. The Mars Exploration Rover Opportunity landed in Meridiani early in 2004 and has since discovered light-toned bedrock outcrops rich in chemical and textural signatures of long-term water interaction locally at the landing site. Here I use remote sensing data to show that the light-toned outcrops at the landing site are not a local phenomenon. Instead, they are observable throughout the haematite-bearing plains in both visible and thermal infrared remote sensing data. Moreover, the light-toned material outcrops around much of the margin and is mappable for hundreds of kilometres to the north, east and west of the plains. I infer that 3 x 10(5) km(2) of this material is exposed over 20 degrees of longitude, indicating the extended presence of surface or near-surface water over a large region of Mars.
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Affiliation(s)
- Brian M Hynek
- Laboratory for Atmospheric and Space Physics, University of Colorado, Boulder, Colorado 80309, USA.
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39
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Chan MA, Beitler B, Parry WT, Ormö J, Komatsu G. A possible terrestrial analogue for haematite concretions on Mars. Nature 2004; 429:731-4. [PMID: 15201902 DOI: 10.1038/nature02600] [Citation(s) in RCA: 135] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2004] [Accepted: 04/26/2004] [Indexed: 11/08/2022]
Abstract
Recent exploration has revealed extensive geological evidence for a water-rich past in the shallow subsurface of Mars. Images of in situ and loose accumulations of abundant, haematite-rich spherical balls from the Mars Exploration Rover 'Opportunity' landing site at Meridiani Planum bear a striking resemblance to diagenetic (post-depositional), haematite-cemented concretions found in the Jurassic Navajo Sandstone of southern Utah. Here we compare the spherical concretions imaged on Mars to these terrestrial concretions, and investigate the implications for analogous groundwater-related formation mechanisms. The morphology, character and distribution of Navajo haematite concretions allow us to infer host-rock properties and fluid processes necessary for similar features to develop on Mars. We conclude that the formation of such spherical haematite concretions requires the presence of a permeable host rock, groundwater flow and a chemical reaction front.
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Affiliation(s)
- Marjorie A Chan
- Department of Geology and Geophysics, University of Utah, 135 S 1460 E, Salt Lake City, Utah 84112-0111, USA.
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40
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Affiliation(s)
- B. Langlais
- NAS/NRC at Geodynamics Branch; NASA Goddard Space Flight Center; Greenbelt Maryland USA
| | - M. E. Purucker
- Raytheon ITSS at Geodynamics Branch; NASA Goddard Space Flight Center; Greenbelt Maryland USA
| | - M. Mandea
- Institut de Physique du Globe; Paris France
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41
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Christensen PR. Formation of the hematite-bearing unit in Meridiani Planum: Evidence for deposition in standing water. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003je002233] [Citation(s) in RCA: 104] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Baldridge AM. Hydration state of the Martian coarse-grained hematite exposures: Implications for their origin and evolution. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003je002066] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Sumner DY. Poor preservation potential of organics in Meridiani Planum hematite-bearing sedimentary rocks. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004je002321] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Glotch TD. Effect of precursor mineralogy on the thermal infrared emission spectra of hematite: Application to Martian hematite mineralization. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003je002224] [Citation(s) in RCA: 56] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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45
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Varekamp JC. Copahue volcano: A modern terrestrial analog for the opportunity landing site? ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2004eo410002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Christensen PR, Mehall GL, Silverman SH, Anwar S, Cannon G, Gorelick N, Kheen R, Tourville T, Bates D, Ferry S, Fortuna T, Jeffryes J, O'Donnell W, Peralta R, Wolverton T, Blaney D, Denise R, Rademacher J, Morris RV, Squyres S. Miniature Thermal Emission Spectrometer for the Mars Exploration Rovers. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003je002117] [Citation(s) in RCA: 135] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Greg L. Mehall
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | | | - Saadat Anwar
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - George Cannon
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - Noel Gorelick
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - Rolph Kheen
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - Tom Tourville
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - Duane Bates
- Raytheon Santa Barbara Remote Sensing; Goleta California USA
| | - Steven Ferry
- Raytheon Santa Barbara Remote Sensing; Goleta California USA
| | - Teresa Fortuna
- Raytheon Santa Barbara Remote Sensing; Goleta California USA
| | - John Jeffryes
- Raytheon Santa Barbara Remote Sensing; Goleta California USA
| | | | - Richard Peralta
- Raytheon Santa Barbara Remote Sensing; Goleta California USA
| | | | - Diana Blaney
- Jet Propulsion Laboratory; Pasadena California USA
| | | | | | | | - Steven Squyres
- Department of Astronomy; Cornell University; Ithaca New York USA
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47
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Golombek MP, Grant JA, Parker TJ, Kass DM, Crisp JA, Squyres SW, Haldemann AFC, Adler M, Lee WJ, Bridges NT, Arvidson RE, Carr MH, Kirk RL, Knocke PC, Roncoli RB, Weitz CM, Schofield JT, Zurek RW, Christensen PR, Fergason RL, Anderson FS, Rice JW. Selection of the Mars Exploration Rover landing sites. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003je002074] [Citation(s) in RCA: 126] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- M. P. Golombek
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - J. A. Grant
- Center for Earth and Planetary Studies; National Air and Space Museum, Smithsonian Institution; Washington DC USA
| | - T. J. Parker
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - D. M. Kass
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - J. A. Crisp
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - S. W. Squyres
- Department of Astronomy; Cornell University; Ithaca New York USA
| | - A. F. C. Haldemann
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - M. Adler
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - W. J. Lee
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - N. T. Bridges
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - R. E. Arvidson
- Department of Earth and Space Sciences; Washington University; St. Louis Missouri USA
| | - M. H. Carr
- U.S. Geological Survey; Menlo Park California USA
| | - R. L. Kirk
- U.S. Geological Survey; Flagstaff Arizona USA
| | - P. C. Knocke
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - R. B. Roncoli
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | | | - J. T. Schofield
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - R. W. Zurek
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - P. R. Christensen
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - R. L. Fergason
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
| | - F. S. Anderson
- Jet Propulsion Laboratory; California Institute of Technology; Pasadena California USA
| | - J. W. Rice
- Department of Geological Sciences; Arizona State University; Tempe Arizona USA
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48
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Newsom HE, Barber CA, Hare TM, Schelble RT, Sutherland VA, Feldman WC. Paleolakes and impact basins in southern Arabia Terra, including Meridiani Planum: Implications for the formation of hematite deposits on Mars. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002je001993] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Horton E. Newsom
- Institute of Meteoritics and Department of Earth and Planetary Sciences; University of New Mexico; Albuquerque New Mexico USA
| | - Charles A. Barber
- Institute of Meteoritics and Department of Earth and Planetary Sciences; University of New Mexico; Albuquerque New Mexico USA
| | | | - Rachel T. Schelble
- Institute of Meteoritics and Department of Earth and Planetary Sciences; University of New Mexico; Albuquerque New Mexico USA
| | - Van A. Sutherland
- Institute of Meteoritics and Department of Earth and Planetary Sciences; University of New Mexico; Albuquerque New Mexico USA
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49
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Arvidson RE, Anderson RC, Haldemann AFC, Landis GA, Li R, Lindemann RA, Matijevic JR, Morris RV, Richter L, Squyres SW, Sullivan RJ, Snider NO. Physical properties and localization investigations associated with the 2003 Mars Exploration rovers. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002je002041] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. E. Arvidson
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | | | | | | | - R. Li
- Department of Civil and Environmental Engineering and Geodetic Science; Ohio State University; Columbus Ohio USA
| | | | | | | | - L. Richter
- DLR Institut für Raumsimulation; Köln Germany
| | - S. W. Squyres
- Center for Radiophysics and Space Research; Cornell University; Ithaca New York USA
| | - R. J. Sullivan
- Center for Radiophysics and Space Research; Cornell University; Ithaca New York USA
| | - N. O. Snider
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
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50
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Arvidson RE, Seelos FP, Deal KS, Koeppen WC, Snider NO, Kieniewicz JM, Hynek BM, Mellon MT, Garvin JB. Mantled and exhumed terrains in Terra Meridiani, Mars. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002je001982] [Citation(s) in RCA: 80] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- R. E. Arvidson
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - F. P. Seelos
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - K. S. Deal
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - W. C. Koeppen
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - N. O. Snider
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - J. M. Kieniewicz
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - B. M. Hynek
- McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences; Washington University; St. Louis Missouri USA
| | - M. T. Mellon
- Laboratory for Atmospheric and Space Physics; University of Colorado; Boulder Colorado USA
| | - J. B. Garvin
- NASA Goddard Space Flight Center; Greenbelt Maryland USA
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