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Liebke U, Antolin B, Appel E, Basavaiah N, Mikes T, Dunkl I, Wemmer K. Indication for clockwise rotation in the Siang window south of the eastern Himalayan syntaxis and new geochronological constraints for the area. ACTA ACUST UNITED AC 2011. [DOI: 10.1144/sp353.5] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractPalaeomagnetic, rock magnetic and geochronological investigations were carried out on the Abor volcanics of Arunachal Pradesh, NE India. A Late Palaeozoic formation age for part of the Abor volcanics cannot be excluded based on K–Ar whole rock dating. Low-temperature thermochronometers – zircon (U–Th)/He and fission track analyses – yield a maximum burial temperature of c. 150–170 °C during Late Miocene. ZFT thermochronology of the Yinkiong and Miri Fms. indicates a post-Paleocene and post-Jurassic deposition age, respectively. This infers that the volcanic rocks intercalating or intruding them are not part of the Late Palaeozoic sequence but represent one or more, latest Cretaceous to Tertiary event(s). Therefore the Abor volcanics are connected to at least two separate events of volcanism. From palaeomagnetic sites, two characteristic magnetic remanence components were separated: a low-coercivity-component demagnetized below 20 mT and a high-coercivity-component demagnetized between 15 and 100 mT. Fold tests support a secondary origin of both components. Thermochronological and rock magnetic analyses indicate a low-grade overprint event between India–Asia collision and Miocene, which probably represents the time of remanence acquisition. The high-coercivity-component shows a trend of clockwise declinations, which is likely related to vertical-axis rotations of the eastern Himalayas due to eastward extrusion of the Tibetan Plateau.
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Affiliation(s)
- Ursina Liebke
- Department of Geosciences, University of Tübingen, Sigwartstrasse 10, D-72076 Tübingen, Germany
| | - B. Antolin
- Department of Geosciences, University of Tübingen, Sigwartstrasse 10, D-72076 Tübingen, Germany
| | - E. Appel
- Department of Geosciences, University of Tübingen, Sigwartstrasse 10, D-72076 Tübingen, Germany
| | - N. Basavaiah
- Indian Institute of Geomagnetism, Kalamboli Highway, New Panvel, Navi Mumbai 410218, India
| | - T. Mikes
- Geoscience Centre Göttingen, Goldschmidtstrasse 3, D-37077 Göttingen, Germany
- Present address: Institute of Geosciences, Goethe University Frankfurt, Altenhöferallee 1, D-60438 Frankfurt am Main, Germany
| | - I. Dunkl
- Geoscience Centre Göttingen, Goldschmidtstrasse 3, D-37077 Göttingen, Germany
| | - K. Wemmer
- Geoscience Centre Göttingen, Goldschmidtstrasse 3, D-37077 Göttingen, Germany
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Hankard F, Cogné JP, Kravchinsky VA, Carporzen L, Bayasgalan A, Lkhagvadorj P. New Tertiary paleomagnetic poles from Mongolia and Siberia at 40, 30, 20, and 13 Ma: Clues on the inclination shallowing problem in central Asia. ACTA ACUST UNITED AC 2007. [DOI: 10.1029/2006jb004488] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Huang B, Wang Y, Zhu R. New paleomagnetic and magnetic fabric results for Early Cretaceous rocks from the Turpan intramontane basin, east Tianshan, northwest China. ACTA ACUST UNITED AC 2004. [DOI: 10.1360/02yd0132] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Dupont-Nivet G, Horton BK, Butler RF, Wang J, Zhou J, Waanders GL. Paleogene clockwise tectonic rotation of the Xining-Lanzhou region, northeastern Tibetan Plateau. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jb002620] [Citation(s) in RCA: 114] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- G. Dupont-Nivet
- Department of Earth and Space Sciences; University of California; Los Angeles California USA
| | - B. K. Horton
- Department of Earth and Space Sciences; University of California; Los Angeles California USA
| | - R. F. Butler
- Department of Geosciences; University of Arizona; Tucson Arizona USA
| | - J. Wang
- Institute of Geochemistry; Chinese Academy of Sciences; Guangzhou China
| | - J. Zhou
- Faculty of Earth Sciences; China University of Geosciences; Wuhan China
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Horton BK, Dupont-Nivet G, Zhou J, Waanders GL, Butler RF, Wang J. Mesozoic-Cenozoic evolution of the Xining-Minhe and Dangchang basins, northeastern Tibetan Plateau: Magnetostratigraphic and biostratigraphic results. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jb002913] [Citation(s) in RCA: 125] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- B. K. Horton
- Department of Earth and Space Sciences; University of California; Los Angeles California USA
| | - G. Dupont-Nivet
- Department of Earth and Space Sciences; University of California; Los Angeles California USA
| | - J. Zhou
- Faculty of Earth Sciences; China University of Geosciences; Wuhan China
| | | | - R. F. Butler
- Department of Geosciences; University of Arizona; Tucson Arizona USA
| | - J. Wang
- Institute of Geochemistry; Chinese Academy of Sciences; Guangzhou China
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Replumaz A, Tapponnier P. Reconstruction of the deformed collision zone Between India and Asia by backward motion of lithospheric blocks. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jb000661] [Citation(s) in RCA: 344] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- A. Replumaz
- Laboratoire Dynamique de la Lithosphère; Université Claude Bernard-Lyon 1; Villeurbanne France
| | - P. Tapponnier
- Laboratoire de Tectonique, Mécanique de la Lithosphère; Institut de Physique du Globe de Paris; Paris France
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Tan X, Kodama KP, Chen H, Fang D, Sun D, Li Y. Paleomagnetism and magnetic anisotropy of Cretaceous red beds from the Tarim basin, northwest China: Evidence for a rock magnetic cause of anomalously shallow paleomagnetic inclinations from central Asia. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2001jb001608] [Citation(s) in RCA: 100] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaodong Tan
- Department of Earth and Environmental Sciences; Lehigh University; Bethlehem Pennsylvania USA
| | - Kenneth P. Kodama
- Department of Earth and Environmental Sciences; Lehigh University; Bethlehem Pennsylvania USA
| | - Hanlin Chen
- Department of Earth Sciences; Zhejiang University; Hangzhou China
| | - Dajun Fang
- Department of Earth Sciences; Zhejiang University; Hangzhou China
| | - Dongjiang Sun
- Institute of Geology and Mineral Resources; Xinjiang Bureau of Geology and Mineral Resources; Urumqi China
| | - Yongan Li
- Institute of Geology and Mineral Resources; Xinjiang Bureau of Geology and Mineral Resources; Urumqi China
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Dupont-Nivet G. Paleomagnetism indicates no Neogene vertical axis rotations of the northeastern Tibetan Plateau. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003jb002399] [Citation(s) in RCA: 40] [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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Kravchinsky VA, Sorokin AA, Courtillot V. Paleomagnetism of Paleozoic and Mesozoic sediments from the southern margin of Mongol-Okhotsk ocean, far eastern Russia. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jb000672] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Andrey A. Sorokin
- Division of the Regional Geology and Hydrogeology; Far East Branch of Russian Academy of Science; Blagoveshchensk Russia
| | - Vincent Courtillot
- Laboratoire de Paléomagnétisme; Institut de Physique du Globe de Paris; Paris France
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Yang T, Yang Z, Sun Z, Lin A. New Early Cretaceous paleomagnetic results from Qilian orogenic belt and its tectonic implications. ACTA ACUST UNITED AC 2002. [DOI: 10.1360/02yd9059] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Gilder S, Chen Y, Sen S. Oligo-Miocene magnetostratigraphy and rock magnetism of the Xishuigou section, Subei (Gansu Province, western China) and implications for shallow inclinations in central Asia. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jb000325] [Citation(s) in RCA: 152] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Cogné JP, Halim N, Chen Y, Courtillot V. Resolving the problem of shallow magnetizations of Tertiary age in Asia: insights from paleomagnetic data from the Qiangtang, Kunlun, and Qaidam blocks (Tibet, China), and a new hypothesis. ACTA ACUST UNITED AC 1999. [DOI: 10.1029/1999jb900153] [Citation(s) in RCA: 112] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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