气候变化领域集成服务门户(CCPortal): Oligocene-Miocene northward growth of the Tibetan Plateau: Insights from intermontane basins in the West Qinling Belt, NW China

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DOI	10.1130/B36722.1
	Oligocene-Miocene northward growth of the Tibetan Plateau: Insights from intermontane basins in the West Qinling Belt, NW China
	Zhang, Yi-Peng; Zhang, Pei-Zhen; Lease, Richard O.; Zhou, Renjie; Wang, Yue-Jun; Yan, Yong-Gang; Wang, Ying; Zheng, Wen-Jun; Liu, Bing-Xu; Li, Zhi-Gang; Liang, Hao; Hui, Ge-Ge; Sun, Chuang; Tian, Qing-Ying; Xu, Bin-Bin; Wang, Wei-Tao
发表日期	2024
ISSN	0016-7606
EISSN	1943-2674
起始页码	136
结束页码	1-2
卷号	136 期号:1-2
英文摘要	Growth of the Tibetan Plateau, Earth's broadest and highest elevation collisional system, shapes orographic barriers, reorganizes drainage networks, and influences surface erosion and sediment delivery, whose changes in space and provenance feed back to intracontinental tectonic processes. Studies of interior basins within the northern Tibetan Plateau provide new sediment accumulation, provenance, paleodrainage, and deformation timing data that enable a reconstruction of the far-field tectono-geomorphic evolution of the rising Tibetan Plateau. Along the northern plateau margin, topographic growth in the West Qinling Belt is inferred to have initiated in the Eocene, nearly coeval with the India-Asia collision, as well as in the late Miocene. However, geological knowledge about the intervening period remains at present enigmatic, and the kinematics and dynamics are uncertain. This study presents a multidisciplinary data set from the intermontane Anhua-Huicheng Basin (AHB; Gansu Province, China) to fill this gap. Magnetostratigraphic dating, regional mapping, and sedimentological analysis imply that contractional deformation and thrust-top basin systems formed within the West Qinling Belt in the Oligocene (not later than ca. 24 Ma). A combination of observations including paleocurrent changes, detrital zircon U-Pb age variations, and appearance of growth strata along the Anhua-Huicheng Basin reveal the rapid uplift of the West Qinling Belt at ca. 15 Ma. Sedimentation in the intermontane basins ended after the late Miocene (ca. 8 Ma), when the region experienced intrabasinal deformation, uplift, and erosion with the establishment of an external drainage system. Since the late Miocene, the growth of the West Qinling Belt reached a climax with the lack of substantial contractional deformation in Cenozoic sequences heralding the onset of the modern kinematic regime and attainment of high elevation. Observed transitions in the tectonostratigraphy and paleodrainage define different phases of deformation and plateau-wide shifts in stress reorganization, which led to the northward growth and later lateral expansion of the Tibetan Plateau.
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001167650300004
来源期刊	GEOLOGICAL SOCIETY OF AMERICA BULLETIN
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/304968
作者单位	Sun Yat Sen University; University of Queensland; United States Department of the Interior; United States Geological Survey; China Earthquake Administration; China Earthquake Administration; Guangdong Earthquake Agency, CEA
推荐引用方式 GB/T 7714	Zhang, Yi-Peng,Zhang, Pei-Zhen,Lease, Richard O.,et al. Oligocene-Miocene northward growth of the Tibetan Plateau: Insights from intermontane basins in the West Qinling Belt, NW China[J],2024,136(1-2).
APA	Zhang, Yi-Peng.,Zhang, Pei-Zhen.,Lease, Richard O..,Zhou, Renjie.,Wang, Yue-Jun.,...&Wang, Wei-Tao.(2024).Oligocene-Miocene northward growth of the Tibetan Plateau: Insights from intermontane basins in the West Qinling Belt, NW China.GEOLOGICAL SOCIETY OF AMERICA BULLETIN,136(1-2).
MLA	Zhang, Yi-Peng,et al."Oligocene-Miocene northward growth of the Tibetan Plateau: Insights from intermontane basins in the West Qinling Belt, NW China".GEOLOGICAL SOCIETY OF AMERICA BULLETIN 136.1-2(2024).