Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy
Abstract The India‐Asia collision has been the object of vigorous debate for decades, with ages of the start ranging from Late Cretaceous to Oligocene. Sedimentary records preserved in both near‐field and far‐field settings provide critical evidence concerning the age and mechanism of the collision....
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| Format: | Article |
| Language: | English |
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Wiley
2021-03-01
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| Series: | Geochemistry, Geophysics, Geosystems |
| Subjects: | |
| Online Access: | https://doi.org/10.1029/2020GC009411 |
| _version_ | 1797638011393933312 |
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| author | R. Xiao Y. Zheng X. Liu Q. Yang G. Liu L. Xia Z. Bian J. Guan P. Feng H. Xu P. D. Clift X. Qiang Y. Zhang H. Zheng |
| author_facet | R. Xiao Y. Zheng X. Liu Q. Yang G. Liu L. Xia Z. Bian J. Guan P. Feng H. Xu P. D. Clift X. Qiang Y. Zhang H. Zheng |
| author_sort | R. Xiao |
| collection | DOAJ |
| description | Abstract The India‐Asia collision has been the object of vigorous debate for decades, with ages of the start ranging from Late Cretaceous to Oligocene. Sedimentary records preserved in both near‐field and far‐field settings provide critical evidence concerning the age and mechanism of the collision. Gonjo Basin, one of a series of fault‐controlled basins developed along the eastern margin of Tibetan Plateau, contains well‐exposed sedimentary successions, providing great potential for understanding depositional, tectonic‐geomorphological and climatic history associated with India‐Asia collision and plateau uplift. Lithofacies analysis reveals that the sequences consist of sandstone, mudstone and conglomerate, formed in fluvial‐lacustrine systems. High‐resolution magnetostratigraphy, constrained by U‐Pb dating of zircon from a volcaniclastic layer which has been found in the central Gonjo Basin for the first time, indicates that sedimentation started at 69 Ma and continued in this locality until 50 Ma. Anisotropy of magnetic susceptibility (AMS) interpretation based on the age framework reveals a post‐depositional compression after 50 Ma, responding simultaneously to the early uplift of southeast Tibetan Plateau driven by India‐Asia collision. |
| first_indexed | 2024-03-11T12:57:33Z |
| format | Article |
| id | doaj.art-70276445e52a4b99a6644bd337b63136 |
| institution | Directory Open Access Journal |
| issn | 1525-2027 |
| language | English |
| last_indexed | 2024-03-11T12:57:33Z |
| publishDate | 2021-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geochemistry, Geophysics, Geosystems |
| spelling | doaj.art-70276445e52a4b99a6644bd337b631362023-11-03T17:00:23ZengWileyGeochemistry, Geophysics, Geosystems1525-20272021-03-01223n/an/a10.1029/2020GC009411Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by MagnetostratigraphyR. Xiao0Y. Zheng1X. Liu2Q. Yang3G. Liu4L. Xia5Z. Bian6J. Guan7P. Feng8H. Xu9P. D. Clift10X. Qiang11Y. Zhang12H. Zheng13School of Geography Science Nanjing Normal University Nanjing ChinaKey Laboratory of Vertebrate Evolution and Human Origins Institute of Vertebrate Paleontology and Paleoanthropology Chinese Academy of Sciences Beijing ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaState Key Laboratory of Loess and Quaternary Geology Institute of Earth Environment Chinese Academy of Sciences Xi'an ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaYunnan Key Laboratory of Earth System Science Yunnan University Kunming ChinaAbstract The India‐Asia collision has been the object of vigorous debate for decades, with ages of the start ranging from Late Cretaceous to Oligocene. Sedimentary records preserved in both near‐field and far‐field settings provide critical evidence concerning the age and mechanism of the collision. Gonjo Basin, one of a series of fault‐controlled basins developed along the eastern margin of Tibetan Plateau, contains well‐exposed sedimentary successions, providing great potential for understanding depositional, tectonic‐geomorphological and climatic history associated with India‐Asia collision and plateau uplift. Lithofacies analysis reveals that the sequences consist of sandstone, mudstone and conglomerate, formed in fluvial‐lacustrine systems. High‐resolution magnetostratigraphy, constrained by U‐Pb dating of zircon from a volcaniclastic layer which has been found in the central Gonjo Basin for the first time, indicates that sedimentation started at 69 Ma and continued in this locality until 50 Ma. Anisotropy of magnetic susceptibility (AMS) interpretation based on the age framework reveals a post‐depositional compression after 50 Ma, responding simultaneously to the early uplift of southeast Tibetan Plateau driven by India‐Asia collision.https://doi.org/10.1029/2020GC009411anisotropy of magnetic susceptibility (AMS)basin evolutionGonjo Basinmagnetostratigraphysoutheast Tibetan Plateau |
| spellingShingle | R. Xiao Y. Zheng X. Liu Q. Yang G. Liu L. Xia Z. Bian J. Guan P. Feng H. Xu P. D. Clift X. Qiang Y. Zhang H. Zheng Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy Geochemistry, Geophysics, Geosystems anisotropy of magnetic susceptibility (AMS) basin evolution Gonjo Basin magnetostratigraphy southeast Tibetan Plateau |
| title | Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy |
| title_full | Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy |
| title_fullStr | Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy |
| title_full_unstemmed | Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy |
| title_short | Synchronous Sedimentation in Gonjo Basin, Southeast Tibet in Response to India‐Asia Collision Constrained by Magnetostratigraphy |
| title_sort | synchronous sedimentation in gonjo basin southeast tibet in response to india asia collision constrained by magnetostratigraphy |
| topic | anisotropy of magnetic susceptibility (AMS) basin evolution Gonjo Basin magnetostratigraphy southeast Tibetan Plateau |
| url | https://doi.org/10.1029/2020GC009411 |
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