Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau)
Abstract Many lake basins on the Tibetan Plateau are affected by tectonic activity. It is therefore important to consider seismotectonic influence on lake evolution when discussing climate impact on hydrology and sediment budgets. Lake Donggi Cona serves as an example to demonstrate the influence of...
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| Format: | Article |
| Language: | English |
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Wiley
2021-10-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2021GL094571 |
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| _version_ | 1850211311391080448 |
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| author | Dada Yan Bernd Wünnemann Yongzhan Zhang Kai Hartmann Bernhard Diekmann Nils Andersen |
| author_facet | Dada Yan Bernd Wünnemann Yongzhan Zhang Kai Hartmann Bernhard Diekmann Nils Andersen |
| author_sort | Dada Yan |
| collection | DOAJ |
| description | Abstract Many lake basins on the Tibetan Plateau are affected by tectonic activity. It is therefore important to consider seismotectonic influence on lake evolution when discussing climate impact on hydrology and sediment budgets. Lake Donggi Cona serves as an example to demonstrate the influence of the Kunlun left‐lateral strike‐slip fault on lake formation with subsidence in the pull‐apart basin. The results show that comparable fluvial sandy sediments generated at low lake levels during the Late Glacial and early Holocene occur at different water depths within a double lake‐internal pull‐apart structure, suggesting mean subsidence rates of 2.6–4.3 mm/a since 13.5 cal. ka BP. Such pulses prevailed throughout the Holocene, pointing to repeated seismic events and ongoing neotectonic activity. Sediment distribution and changing morphological shape by subsidence are important factors that affected other lakes on the Tibetan Plateau and enable us to distinguish between neotectonic and paleoclimatic impacts. |
| format | Article |
| id | doaj-art-9aa367ed31eb41e9b139907069882fef |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2021-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-9aa367ed31eb41e9b139907069882fef2025-08-20T02:09:35ZengWileyGeophysical Research Letters0094-82761944-80072021-10-014820n/an/a10.1029/2021GL094571Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau)Dada Yan0Bernd Wünnemann1Yongzhan Zhang2Kai Hartmann3Bernhard Diekmann4Nils Andersen5Faculty of Geosciences and Environmental Engineering Southwest Jiaotong University Chengdu ChinaFaculty of Geosciences and Environmental Engineering Southwest Jiaotong University Chengdu ChinaSchool of Geography and Ocean Science Nanjing University Nanjing ChinaInstitute of Geographical Science Freie Universität Berlin Berlin GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research Potsdam GermanyLeibniz Laboratory for Radiometric Dating and Stable Isotope Research Christian Albrechts Universität zu Kiel Kiel GermanyAbstract Many lake basins on the Tibetan Plateau are affected by tectonic activity. It is therefore important to consider seismotectonic influence on lake evolution when discussing climate impact on hydrology and sediment budgets. Lake Donggi Cona serves as an example to demonstrate the influence of the Kunlun left‐lateral strike‐slip fault on lake formation with subsidence in the pull‐apart basin. The results show that comparable fluvial sandy sediments generated at low lake levels during the Late Glacial and early Holocene occur at different water depths within a double lake‐internal pull‐apart structure, suggesting mean subsidence rates of 2.6–4.3 mm/a since 13.5 cal. ka BP. Such pulses prevailed throughout the Holocene, pointing to repeated seismic events and ongoing neotectonic activity. Sediment distribution and changing morphological shape by subsidence are important factors that affected other lakes on the Tibetan Plateau and enable us to distinguish between neotectonic and paleoclimatic impacts.https://doi.org/10.1029/2021GL094571pull‐apart basinsubsidenceTibetan Plateaulake sedimentsHolocene |
| spellingShingle | Dada Yan Bernd Wünnemann Yongzhan Zhang Kai Hartmann Bernhard Diekmann Nils Andersen Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau) Geophysical Research Letters pull‐apart basin subsidence Tibetan Plateau lake sediments Holocene |
| title | Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau) |
| title_full | Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau) |
| title_fullStr | Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau) |
| title_full_unstemmed | Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau) |
| title_short | Neotectonic Subsidence Along the Cenozoic Kunlun Fault (Tibetan Plateau) |
| title_sort | neotectonic subsidence along the cenozoic kunlun fault tibetan plateau |
| topic | pull‐apart basin subsidence Tibetan Plateau lake sediments Holocene |
| url | https://doi.org/10.1029/2021GL094571 |
| work_keys_str_mv | AT dadayan neotectonicsubsidencealongthecenozoickunlunfaulttibetanplateau AT berndwunnemann neotectonicsubsidencealongthecenozoickunlunfaulttibetanplateau AT yongzhanzhang neotectonicsubsidencealongthecenozoickunlunfaulttibetanplateau AT kaihartmann neotectonicsubsidencealongthecenozoickunlunfaulttibetanplateau AT bernharddiekmann neotectonicsubsidencealongthecenozoickunlunfaulttibetanplateau AT nilsandersen neotectonicsubsidencealongthecenozoickunlunfaulttibetanplateau |