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Contribution of the 2010 Maule Megathrust Earthquake to the Heat Flow at the Peru-Chile Trench. ENERGIES 2022. [DOI: 10.3390/en15062253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The 2010 Maule earthquake was a megathrust event that occurred along the Peru–Chile Trench. The earthquake source can be modelled as a fault with two asperities with different areas and strengths. By employing a discrete fault model, where asperities are the basic elements, the event can be described as a sequence of three dynamic modes involving simultaneous asperity slip. Interaction between asperities by mutual stress transfer plays a crucial role during fault slip. With a careful choice of values for the model parameters, the mode durations, the slip distribution, the seismic moment rate and the final moment calculated from the model are found to be consistent with the observed values. An important amount of frictional heat is produced by an event of this size and is calculated by summing up the contributions of each asperity. The seismic event produces a heat pulse propagating through the Earth’s crust and contributing to the average heat flow in the region. The calculated heat production is equal to about 2×1017 J and the peak value of the heat pulse is equal to 6×10−3 mW m−2 or about 10−4 of the average surface heat flow density, with a characteristic diffusion time in the order of 106 a.
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Nibourel L, Berger A, Egli D, Heuberger S, Herwegh M. Structural and thermal evolution of the eastern Aar Massif: insights from structural field work and Raman thermometry. SWISS JOURNAL OF GEOSCIENCES 2021; 114:9. [PMID: 33746693 PMCID: PMC7929973 DOI: 10.1186/s00015-020-00381-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 11/23/2020] [Indexed: 06/12/2023]
Abstract
The thermo-kinematic evolution of the eastern Aar Massif, Swiss Alps, was investigated using peak temperature data estimated from Raman spectroscopy of carbonaceous material and detailed field analyses. New and compiled temperature-time constraints along the deformed and exhumed basement-cover contact allow us to (i) establish the timing of metamorphism and deformation, (ii) track long-term horizontal and vertical orogenic movements and (iii) assess the influence of temperature and structural inheritance on the kinematic evolution. We present a new shear zone map, structural cross sections and a step-wise retrodeformation. From ca.\;26\,Ma onwards, basement-involved deformation started with the formation of relatively discrete NNW-directed thrusts. Peak metamorphic isograds are weakly deformed by these thrusts, suggesting that they initiated before or during the metamorphic peak under ongoing burial in the footwall to the basal Helvetic roof thrust. Subsequent peak- to post-metamorphic deformation was dominated by steep, mostly NNW-vergent reverse faults ( ca. 22-14 Ma). Field investigations demonstrate that these shear zones were steeper than 50 ∘ already at inception. This produced the massif-internal structural relief and was associated with large vertical displacements (7 km shortening vs. up to 11 km exhumation). From 14 Ma onwards, the eastern Aar massif exhumed "en bloc" (i.e., without significant differential massif-internal exhumation) in the hanging wall of frontal thrusts, which is consistent with the transition to strike-slip dominated deformation observed within the massif. Our results indicate 13 km shortening and 9 km exhumation between 14 Ma and present. Inherited normal faults were not significantly reactivated. Instead, new thrusts/reverse faults developed in the basement below syn-rift basins, and can be traced into overturned fold limbs in the overlying sediment, producing tight synclines and broad anticlines along the basement-cover contact. The sediments were not detached from their crystalline substratum and formed disharmonic folds. Our results highlight decreasing rheological contrasts between (i) relatively strong basement and (ii) relatively weak cover units and inherited faults at higher temperature conditions. Both the timing of basement-involved deformation and the structural style (shear zone dip) appear to be controlled by evolving temperature conditions.
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Affiliation(s)
- Lukas Nibourel
- Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland
- Department of Earth Sciences, ETH Zurich, Sonneggstrasse 5, 8092 Zürich, Switzerland
| | - Alfons Berger
- Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland
| | - Daniel Egli
- Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland
| | - Stefan Heuberger
- Department of Earth Sciences, ETH Zurich, Sonneggstrasse 5, 8092 Zürich, Switzerland
| | - Marco Herwegh
- Institute of Geological Sciences, University of Bern, Baltzerstrasse 1+3, 3012 Bern, Switzerland
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Mineralization Epochs of Granitic Rare-Metal Pegmatite Deposits in the Songpan–Ganzê Orogenic Belt and Their Implications for Orogeny. MINERALS 2019. [DOI: 10.3390/min9050280] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Granitic pegmatite deposits, which are usually products of orogenic processes during plate convergence, can be used to demonstrate regional tectonic evolution processes. In the eastern Tibetan Plateau in China, the Jiajika, Dahongliutan, Xuebaoding, Zhawulong, and Ke’eryin rare metal pegmatite deposits are located in the southern, western, northern, midwestern, and central areas of the Songpan–Ganzê orogenic belt, respectively. In this study, we dated two muscovite Ar–Ar ages of 189.4 ± 1.1 Ma and 187.0 ± 1.1 Ma from spodumene pegmatites of the Dahongliutan deposit. We also dated one zircon U-Pb age of 211.6 ± 5.2 Ma from muscovite granite, two muscovite Ar–Ar ages of 179.6 ± 1.0 Ma and 174.3 ± 0.9 Ma, and one columbite–tantalite U-Pb age of 204.5 ± 1.8 Ma from spodumene pegmatites of the Zhawulong deposit. In addition, we dated one muscovite Ar–Ar age of 159.0 ± 1.4 Ma from spodumene pegmatite of the Ke’eryin deposit. Combining these ages and previous studies in chronology, we concluded that the granitic magma in the Jiajika, Xuebaoding, Dahongliutan, Zhawulong, and Ke’eryin deposits intruded into Triassic metaturbidites at approximately 223, 221, 220–217, 212, and 207–205 Ma, respectively, and that the crystallization of the corresponding pegmatite ceased at approximately 199–196, 195–190, 189–187, 180–174, and 159 Ma, respectively. In this study, we demonstrated that the peak in magmatic activity and the final crystallization age of the pegmatite lagged behind one another from the outer areas of the orogeny belt to the inner areas. The pegmatite–parented granitic magmas were sourced from Triassic metaturbidites that were melted by shear heating along the large-scale decollement resulting from Indosinian collisions along the North China block, Qiangtang–Changdu block, and Yangtze block. As a result, the above temporal and spatial regularities indicated that the tectonic–thermal stress resulting from the collisions of three blocks was transferred from the outer areas of the orogenic belt to the inner areas. A large amount of heat and a slow cooling rate at the convergent center of thermal stress in two directions will lead to crystallization and differentiation of magma in the Songpan–Ganzê orogenic belt, forming additional rare metal deposits.
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Shear heating reconciles thermal models with the metamorphic rock record of subduction. Proc Natl Acad Sci U S A 2018; 115:11706-11711. [PMID: 30373832 DOI: 10.1073/pnas.1809962115] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Some commonly referenced thermal-mechanical models of current subduction zones imply temperatures that are 100-500 °C colder at 30-80-km depth than pressure-temperature conditions determined thermobarometrically from exhumed metamorphic rocks. Accurately inferring subduction zone thermal structure, whether from models or rocks, is crucial for predicting metamorphic reactions and associated fluid release, subarc melting conditions, rheologies, and fault-slip phenomena. Here, we compile surface heat flow data from subduction zones worldwide and show that values are higher than can be explained for a frictionless subduction interface often assumed for modeling. An additional heat source--likely shear heating--is required to explain these forearc heat flow values. A friction coefficient of at least 0.03 and possibly as high as 0.1 in some cases explains these data, and we recommend a provisional average value of 0.05 ± 0.015 for modeling. Even small coefficients of friction can contribute several hundred degrees of heating at depths of 30-80 km. Adding such shear stresses to thermal models quantitatively reproduces the pressure-temperature conditions recorded by exhumed metamorphic rocks. Comparatively higher temperatures generally drive rock dehydration and densification, so, at a given depth, hotter rocks are denser than colder rocks, and harder to exhume through buoyancy mechanisms. Consequently--conversely to previous proposals--exhumed metamorphic rocks might overrepresent old-cold subduction where rocks at the slab interface are wetter and more buoyant than in young-hot subduction zones.
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Gao X, Wang K. Strength of stick-slip and creeping subduction megathrusts from heat flow observations. Science 2014; 345:1038-41. [PMID: 25170149 DOI: 10.1126/science.1255487] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Xiang Gao
- Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, China
| | - Kelin Wang
- Pacific Geoscience Centre, Geological Survey of Canada, Natural Resources Canada, 9860 West Saanich Road, Sidney, British Columbia, V8L 4B2, Canada
- School of Earth and Ocean Sciences, University of Victoria, Victoria, British Columbia, V8P 5C2, Canada
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Peacock SM. Thermal and Petrologic Structure of Subduction Zones. SUBDUCTION TOP TO BOTTOM 2013. [DOI: 10.1029/gm096p0119] [Citation(s) in RCA: 131] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Subducted Lithospheric Slab Velocity Structure: Observations and Mineralogical Inferences. ACTA ACUST UNITED AC 2013. [DOI: 10.1029/gm096p0215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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A Simple Rheological Framework for Comparative Subductology. ACTA ACUST UNITED AC 2013. [DOI: 10.1029/gm076p0039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Hyndman RD, Wang K. Thermal constraints on the zone of major thrust earthquake failure: The Cascadia Subduction Zone. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jb02279] [Citation(s) in RCA: 414] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Spencer JE. A numerical assessment of slab strength during high- and low-angle subduction and implications for Laramide orogenesis. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/94jb00503] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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11
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Ponko SC, Peacock SM. Thermal modeling of the southern Alaska subduction zone: Insight into the petrology of the subducting slab and overlying mantle wedge. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95jb02506] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ferguson IJ, Westbrook GK, Langseth MG, Thomas GP. Heat flow and thermal models of the Barbados Ridge Accretionary Complex. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jb01853] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Leloup PH, Harrison TM, Ryerson FJ, Wenji C, Qi L, Tapponnier P, Lacassin R. Structural, petrological and thermal evolution of a Tertiary ductile strike-slip shear zone, Diancang Shan, Yunnan. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jb02791] [Citation(s) in RCA: 235] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Wang K, Mulder T, Rogers GC, Hyndman RD. Case for very low coupling stress on the Cascadia Ssubduction Fault. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95jb00516] [Citation(s) in RCA: 181] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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England P, Le Fort P, Molnar P, Pêcher A. Heat sources for Tertiary metamorphism and anatexis in the Annapurna-Manaslu Region central Nepal. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91jb02272] [Citation(s) in RCA: 151] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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18
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Mancktelow NS. Nonlithostatic pressure during sediment subduction and the development and exhumation of high pressure metamorphic rocks. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/94jb02158] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Scaillet B, Pêcher A, Rochette P, Champenois M. The Gangotri granite (Garhwal Himalaya): Laccolithic emplacement in an extending collisional belt. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/94jb01664] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Royden LH. The steady state thermal structure of eroding orogenic belts and accretionary prisms. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/92jb01954] [Citation(s) in RCA: 129] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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21
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Kao H, Chen WP. Earthquakes along the Ryukyu-Kyushu Arc: Strain segmentation, lateral compression, and the thermomechanical state of the plate interface. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91jb02164] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Mccaffrey R. On the role of the upper plate in great subduction zone earthquakes. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/93jb00445] [Citation(s) in RCA: 64] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Barnett DE, Bowman JR, Pavlis TL, Rubenstone JR, Snee LW, Onstott TC. Metamorphism and near-trench plutonism during initial accretion of the Cretaceous Alaskan forearc. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/94jb02462] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Hyndman RD, Wang K, Yamano M. Thermal constraints on the seismogenic portion of the southwestern Japan subduction thrust. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95jb00153] [Citation(s) in RCA: 257] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Hyndman RD, Wang K. The rupture zone of Cascadia great earthquakes from current deformation and the thermal regime. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/95jb01970] [Citation(s) in RCA: 209] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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26
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Völker D, Grevemeyer I, Stipp M, Wang K, He J. Thermal control of the seismogenic zone of southern central Chile. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2011jb008247] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Grove TL, Till CB, Lev E, Chatterjee N, Médard E. Kinematic variables and water transport control the formation and location of arc volcanoes. Nature 2009; 459:694-7. [PMID: 19494913 DOI: 10.1038/nature08044] [Citation(s) in RCA: 151] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2009] [Accepted: 04/06/2009] [Indexed: 11/09/2022]
Abstract
The processes that give rise to arc magmas at convergent plate margins have long been a subject of scientific research and debate. A consensus has developed that the mantle wedge overlying the subducting slab and fluids and/or melts from the subducting slab itself are involved in the melting process. However, the role of kinematic variables such as slab dip and convergence rate in the formation of arc magmas is still unclear. The depth to the top of the subducting slab beneath volcanic arcs, usually approximately 110 +/- 20 km, was previously thought to be constant among arcs. Recent studies revealed that the depth of intermediate-depth earthquakes underneath volcanic arcs, presumably marking the slab-wedge interface, varies systematically between approximately 60 and 173 km and correlates with slab dip and convergence rate. Water-rich magmas (over 4-6 wt% H(2)O) are found in subduction zones with very different subduction parameters, including those with a shallow-dipping slab (north Japan), or steeply dipping slab (Marianas). Here we propose a simple model to address how kinematic parameters of plate subduction relate to the location of mantle melting at subduction zones. We demonstrate that the location of arc volcanoes is controlled by a combination of conditions: melting in the wedge is induced at the overlap of regions in the wedge that are hotter than the melting curve (solidus) of vapour-saturated peridotite and regions where hydrous minerals both in the wedge and in the subducting slab break down. These two limits for melt generation, when combined with the kinematic parameters of slab dip and convergence rate, provide independent constraints on the thermal structure of the wedge and accurately predict the location of mantle wedge melting and the position of arc volcanoes.
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Affiliation(s)
- T L Grove
- Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
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Seno T. Determination of the pore fluid pressure ratio at seismogenic megathrusts in subduction zones: Implications for strength of asperities and Andean-type mountain building. ACTA ACUST UNITED AC 2009. [DOI: 10.1029/2008jb005889] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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29
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Hippchen S, Hyndman RD. Thermal and structural models of the Sumatra subduction zone: Implications for the megathrust seismogenic zone. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jb005698] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Lamb S. Shear stresses on megathrusts: Implications for mountain building behind subduction zones. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jb003916] [Citation(s) in RCA: 128] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Jamieson RA, Beaumont C, Medvedev S, Nguyen MH. Crustal channel flows: 2. Numerical models with implications for metamorphism in the Himalayan-Tibetan orogen. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jb002811] [Citation(s) in RCA: 273] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rebecca A. Jamieson
- Department of Earth Sciences; Dalhousie University; Halifax, Nova Scotia Canada
| | | | - Sergei Medvedev
- Department of Oceanography; Dalhousie University; Halifax, Nova Scotia Canada
| | - Mai H. Nguyen
- Department of Earth Sciences; Dalhousie University; Halifax, Nova Scotia Canada
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Yáñez G, Cembrano J. Role of viscous plate coupling in the late Tertiary Andean tectonics. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jb002494] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Gonzalo Yáñez
- Corporación Nacional del Cobre, Chile; Santiago Chile
| | - José Cembrano
- Departamento de Ciencias Geológicas; Universidad Católica del Norte; Antofagasta Chile
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Lamb S, Davis P. Cenozoic climate change as a possible cause for the rise of the Andes. Nature 2003; 425:792-7. [PMID: 14574402 DOI: 10.1038/nature02049] [Citation(s) in RCA: 316] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2003] [Accepted: 09/12/2003] [Indexed: 11/08/2022]
Abstract
Causal links between the rise of a large mountain range and climate have often been considered to work in one direction, with significant uplift provoking climate change. Here we propose a mechanism by which Cenozoic climate change could have caused the rise of the Andes. Based on considerations of the force balance in the South American lithosphere, we suggest that the height of, and tectonics in, the Andes are strongly controlled both by shear stresses along the plate interface in the subduction zone and by buoyancy stress contrasts between the trench and highlands, and shear stresses in the subduction zone depend on the amount of subducted sediments. We propose that the dynamics of subduction and mountain-building in this region are controlled by the processes of erosion and sediment deposition, and ultimately climate. In central South America, climate-controlled sediment starvation would then cause high shear stress, focusing the plate boundary stresses that support the high Andes.
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Affiliation(s)
- Simon Lamb
- Department of Earth Sciences, Parks Road, Oxford, OX1 3PR, UK.
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Yamasaki T, Seno T. Double seismic zone and dehydration embrittlement of the subducting slab. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jb001918] [Citation(s) in RCA: 207] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Tetsuzo Seno
- Earthquake Research Institute; University of Tokyo; Tokyo Japan
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35
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Kelemen PB, Rilling JL, Parmentier EM, Mehl L, Hacker BR. Thermal structure due to solid-state flow in the mantle wedge beneath arcs. INSIDE THE SUBDUCTION FACTORY 2003. [DOI: 10.1029/138gm13] [Citation(s) in RCA: 133] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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36
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Liu M. Extensional collapse of the Tibetan Plateau: Results of three-dimensional finite element modeling. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jb002248] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Peacock SM. Thermal structure and metamorphic evolution of subducting slabs. INSIDE THE SUBDUCTION FACTORY 2003. [DOI: 10.1029/138gm02] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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38
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Currie CA, Hyndman RD, Wang K, Kostoglodov V. Thermal models of the Mexico subduction zone: Implications for the megathrust seismogenic zone. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jb000886] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- C. A. Currie
- School of Earth and Ocean Sciences; University of Victoria; Victoria British Columbia Canada
| | - R. D. Hyndman
- Pacific Geoscience Centre; Geological Survey of Canada; Sidney British Columbia Canada
| | - K. Wang
- Pacific Geoscience Centre; Geological Survey of Canada; Sidney British Columbia Canada
| | - V. Kostoglodov
- Instituto de Geofisica; Universidad Nacional Autonoma de Mexico; Mexico City Mexico
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39
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Brune JN, Thatcher W. 35 Strength and energetics of active fault zones. INTERNATIONAL GEOPHYSICS 2002. [DOI: 10.1016/s0074-6142(02)80238-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Von Herzen R, Ruppel C, Molnar P, Nettles M, Nagihara S, Ekström G. A constraint on the shear stress at the Pacific-Australian plate boundary from heat flow and seismicity at the Kermadec forearc. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jb900469] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Yáñez GA, Ranero CR, von Huene R, Díaz J. Magnetic anomaly interpretation across the southern central Andes (32°-34°S): The role of the Juan Fernández Ridge in the late Tertiary evolution of the margin. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jb900337] [Citation(s) in RCA: 264] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Chemenda A, Lallemand S, Bokun A. Strain partitioning and interplate friction in oblique subduction zones: Constraints provided by experimental modeling. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jb900332] [Citation(s) in RCA: 92] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Conrad CP, Hager BH. Effects of plate bending and fault strength at subduction zones on plate dynamics. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jb900149] [Citation(s) in RCA: 212] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Oleskevich DA, Hyndman RD, Wang K. The updip and downdip limits to great subduction earthquakes: Thermal and structural models of Cascadia, south Alaska, SW Japan, and Chile. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jb900060] [Citation(s) in RCA: 413] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Searle MP, Waters DJ, Dransfield MW, Stephenson BJ, Walker CB, Walker JD, Rex DC. Thermal and mechanical models for the structural and metamorphic evolution of the Zanskar High Himalaya. ACTA ACUST UNITED AC 1999. [DOI: 10.1144/gsl.sp.1999.164.01.08] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Harrison TM, Grove M, Lovera OM, Catlos EJ. A model for the origin of Himalayan anatexis and inverted metamorphism. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jb02468] [Citation(s) in RCA: 230] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Huerta AD, Royden LH, Hodges KV. The thermal structure of collisional orogens as a response to accretion, erosion, and radiogenic heating. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jb00593] [Citation(s) in RCA: 109] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Rheology of Crustal Rocks at Ultrahigh Pressure. WHEN CONTINENTS COLLIDE: GEODYNAMICS AND GEOCHEMISTRY OF ULTRAHIGH-PRESSURE ROCKS 1998. [DOI: 10.1007/978-94-015-9050-1_3] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Kincaid C, Sacks IS. Thermal and dynamical evolution of the upper mantle in subduction zones. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/96jb03553] [Citation(s) in RCA: 195] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Huerta AD, Royden LH, Hodges KV. The Interdependence of Deformational and Thermal Processes in Mountain Belts. Science 1996; 273:637-9. [PMID: 8662552 DOI: 10.1126/science.273.5275.637] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Crustal temperatures within collisional orogens are anomalously high compared with temperatures at comparable depths in stable continents, which is evidence of thermal processes that are fundamental to orogenesis. These temperatures can be explained by the redistribution of crust enriched in heat-producing elements through the accretion of crust from the down-going plate to the upper plate and surface erosion. With the use of geologically reasonable rates, the model results predict high temperatures (over 600°C) and inverted upper-plate geotherms (about 100°C over 20 kilometers) at shallow depths (20 to 40 kilometers) by 25 to 35 million years after collision. This study emphasizes the interdependence of deformational, surficial, and thermal processes.
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Affiliation(s)
- AD Huerta
- Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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