Magnetostratigraphy of Cenozoic deposits in the western Qaidam Basin and its implication for the surface uplift of the northeastern margin of the Tibetan Plateau

Hong Chang; Leyi Li; Xiaoke Qiang; Carmala N. Garzione; Alexander Pullen; Zhisheng An

doi:10.1016/j.epsl.2015.08.029

Magnetostratigraphy of Cenozoic deposits in the western Qaidam Basin and its implication for the surface uplift of the northeastern margin of the Tibetan Plateau

Hong Chang, Leyi Li, Xiaoke Qiang, Carmala N. Garzione, Alexander Pullen, Zhisheng An

Research output: Contribution to journal › Article › peer-review

159 Scopus citations

Abstract

Thick Cenozoic deposits in the northwestern Qaidam Basin record erosion of the Altyn Tagh and high terrain west of that basin and presumably the concurrent growth of the northeastern Tibetan Plateau. A detailed magnetostratigraphic study of the Huatugou section, northwestern Qaidam basin, reveals that this section spans the period from ~30 to ~11 Ma. Magnetostratigraphic and sedimentological studies indicate that the accumulation rate abruptly increased near ~15 Ma. The acceleration in sedimentation rate suggests enhanced tectonic deformation in the Qaidam basin since 15 Ma that may have begun simultaneously with accelerated deformation along the Altyn Tagh, Kunlun, and Haiyuan faults, which contributed to the growth history of the Qaidam basin and its surroundings since ~15 Ma.

Original language	English (US)
Pages (from-to)	271-283
Number of pages	13
Journal	Earth and Planetary Science Letters
Volume	430
DOIs	https://doi.org/10.1016/j.epsl.2015.08.029
State	Published - Nov 15 2015
Externally published	Yes

Keywords

Accumulation rate
Altyn Tagh fault
Huatugou section
Magnetostratigraphy
Qaidam basin
Tectonic uplift

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology
Earth and Planetary Sciences (miscellaneous)
Space and Planetary Science

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10.1016/j.epsl.2015.08.029

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title = "Magnetostratigraphy of Cenozoic deposits in the western Qaidam Basin and its implication for the surface uplift of the northeastern margin of the Tibetan Plateau",

abstract = "Thick Cenozoic deposits in the northwestern Qaidam Basin record erosion of the Altyn Tagh and high terrain west of that basin and presumably the concurrent growth of the northeastern Tibetan Plateau. A detailed magnetostratigraphic study of the Huatugou section, northwestern Qaidam basin, reveals that this section spans the period from ~30 to ~11 Ma. Magnetostratigraphic and sedimentological studies indicate that the accumulation rate abruptly increased near ~15 Ma. The acceleration in sedimentation rate suggests enhanced tectonic deformation in the Qaidam basin since 15 Ma that may have begun simultaneously with accelerated deformation along the Altyn Tagh, Kunlun, and Haiyuan faults, which contributed to the growth history of the Qaidam basin and its surroundings since ~15 Ma.",

keywords = "Accumulation rate, Altyn Tagh fault, Huatugou section, Magnetostratigraphy, Qaidam basin, Tectonic uplift",

author = "Hong Chang and Leyi Li and Xiaoke Qiang and Garzione, {Carmala N.} and Alexander Pullen and Zhisheng An",

note = "Funding Information: This study was jointly supported by the National Natural Science Foundation of China (No. 41290252 ), the Tibetan Plateau Special Project from Chinese Academy of Sciences ( XDB03020102 ), NSFC (Nos. 41420104008 , 41572166 ) and the National Science Foundation of the USA under grants EAR-0909199 , 1211378 , 1211527 , and 1251486 . We appreciate Professor Peter Molnar for his hard work in field, data analysis and improvements to this paper on the geology and language. We are grateful to Nathan Niemi, Yi Jiang, and Yun Li for their helpful work in the field survey and to Li Lin for helpful discussions. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

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doi = "10.1016/j.epsl.2015.08.029",

language = "English (US)",

volume = "430",

pages = "271--283",

journal = "Earth and Planetary Science Letters",

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T1 - Magnetostratigraphy of Cenozoic deposits in the western Qaidam Basin and its implication for the surface uplift of the northeastern margin of the Tibetan Plateau

AU - Chang, Hong

AU - Li, Leyi

AU - Qiang, Xiaoke

AU - Garzione, Carmala N.

AU - Pullen, Alexander

AU - An, Zhisheng

N1 - Funding Information: This study was jointly supported by the National Natural Science Foundation of China (No. 41290252 ), the Tibetan Plateau Special Project from Chinese Academy of Sciences ( XDB03020102 ), NSFC (Nos. 41420104008 , 41572166 ) and the National Science Foundation of the USA under grants EAR-0909199 , 1211378 , 1211527 , and 1251486 . We appreciate Professor Peter Molnar for his hard work in field, data analysis and improvements to this paper on the geology and language. We are grateful to Nathan Niemi, Yi Jiang, and Yun Li for their helpful work in the field survey and to Li Lin for helpful discussions. Publisher Copyright: © 2015 Elsevier B.V.

PY - 2015/11/15

Y1 - 2015/11/15

N2 - Thick Cenozoic deposits in the northwestern Qaidam Basin record erosion of the Altyn Tagh and high terrain west of that basin and presumably the concurrent growth of the northeastern Tibetan Plateau. A detailed magnetostratigraphic study of the Huatugou section, northwestern Qaidam basin, reveals that this section spans the period from ~30 to ~11 Ma. Magnetostratigraphic and sedimentological studies indicate that the accumulation rate abruptly increased near ~15 Ma. The acceleration in sedimentation rate suggests enhanced tectonic deformation in the Qaidam basin since 15 Ma that may have begun simultaneously with accelerated deformation along the Altyn Tagh, Kunlun, and Haiyuan faults, which contributed to the growth history of the Qaidam basin and its surroundings since ~15 Ma.

AB - Thick Cenozoic deposits in the northwestern Qaidam Basin record erosion of the Altyn Tagh and high terrain west of that basin and presumably the concurrent growth of the northeastern Tibetan Plateau. A detailed magnetostratigraphic study of the Huatugou section, northwestern Qaidam basin, reveals that this section spans the period from ~30 to ~11 Ma. Magnetostratigraphic and sedimentological studies indicate that the accumulation rate abruptly increased near ~15 Ma. The acceleration in sedimentation rate suggests enhanced tectonic deformation in the Qaidam basin since 15 Ma that may have begun simultaneously with accelerated deformation along the Altyn Tagh, Kunlun, and Haiyuan faults, which contributed to the growth history of the Qaidam basin and its surroundings since ~15 Ma.

KW - Accumulation rate

KW - Altyn Tagh fault

KW - Huatugou section

KW - Magnetostratigraphy

KW - Qaidam basin

KW - Tectonic uplift

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ER -

Magnetostratigraphy of Cenozoic deposits in the western Qaidam Basin and its implication for the surface uplift of the northeastern margin of the Tibetan Plateau

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Keywords

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