气候变化领域集成服务门户(CCPortal): Spatiotemporal patterns of the Late Quaternary deformation across the northern Chinese Tian Shan foreland

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DOI	10.1016/j.earscirev.2019.04.026
	Spatiotemporal patterns of the Late Quaternary deformation across the northern Chinese Tian Shan foreland
	Lu H.; Li B.; Wu D.; Zhao J.; Zheng X.; Xiong J.; Li Y.
发表日期	2019
ISSN	0012-8965
起始页码	19
结束页码	37
卷号	194
英文摘要	The investigations of active deformation across a mountain foreland can provide important insights into the pattern and dynamics of deformation of an active orogenic belt. Here we focus on the spatiotemporal patterns of the Late Quaternary deformation along the north piedmont of the Chinese Tian Shan, a mountain range formed by the ongoing India-Asia collision. By using a terrace as the reference and applying the area-conservation method, the Holocene shortening rate of the Halaande anticline, a fold of the distal structure Belt III in the foreland, is estimated to 2.14 ± 0.24 mm/yr for the first time. Similarly, we re-calculate the Holocene shortening rates of the other anticlines of Belt II-III using the magnitude of shortening documented by river terraces and the terrace formation ages published previously. The summed Holocene (103-year timescale)shortening rates of individual anticlines along N–S transects are ~2–4 mm/yr, consistent with the Late Pleistocene (104-year timescale)shortening rate but about 2–6 times higher than the long-term (106-year timescale)average shortening rate of ~1 mm/yr during the past several million years. Together with the shortening rates of individual anticlines at the 103-year, 104-year, and 106-year scales, these observations imply that the deformation across the northern Chinese Tian Shan foreland has accelerated since at least Late Pleistocene. By summing the Late Quaternary rates of shortening in the southern Chinese Tian Shan foreland (4–5 mm/yr)and the intermontane basins in the hinterland of the Tian Shan (~2 mm/yr), the Late Quaternary rate of shortening across the Tian Shan range (between longitude 83°E and 87°E)amounts to ~9.0 ± 1.0 mm/yr, approximately matching the modern shortening rate of ~8 mm/yr derived from the GPS measurements. These results imply (i)that the deformation across the Tian Shan range and its foreland basins (between longitude 83°E and 87°E)could have not been changed significantly since at least Late Pleistocene; (ii)that, in the northern Chinese Tian Shan foreland, the recurrence interval of paleoseismic events during the past tens of thousands of years may be determined by a linear extrapolation of the Holocene or even geodetic rate of deformation. © 2019 Elsevier B.V.
英文关键词	Crustal shortening; Foreland basin; Late Quaternary; Spatiotemporal pattern; The Tian Shan
语种	英语
scopus关键词	crustal deformation; crustal shortening; foreland basin; Holocene; paleoseismicity; Pleistocene; recurrence interval; spatiotemporal analysis; Tien Shan
来源期刊	EARTH-SCIENCE REVIEWS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/209885
作者单位	Key Laboratory of Geographic Information Science of Ministry of Education, School of Geographic Sciences, East China Normal University, Shanghai, 200241, China; Institute of Eco-Chongming (IEC), East China Normal University, Shanghai, 200062, China; Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, China Earthquake Administration, Beijing, 100085, China; Institute of Geology, China Earthquake Administration, Beijing, 100029, China; Key Laboratory of Earth Surface Processes of Ministry of Education, Peking University, Beijing, 100871, China
推荐引用方式 GB/T 7714	Lu H.,Li B.,Wu D.,et al. Spatiotemporal patterns of the Late Quaternary deformation across the northern Chinese Tian Shan foreland[J],2019,194.
APA	Lu H..,Li B..,Wu D..,Zhao J..,Zheng X..,...&Li Y..(2019).Spatiotemporal patterns of the Late Quaternary deformation across the northern Chinese Tian Shan foreland.EARTH-SCIENCE REVIEWS,194.
MLA	Lu H.,et al."Spatiotemporal patterns of the Late Quaternary deformation across the northern Chinese Tian Shan foreland".EARTH-SCIENCE REVIEWS 194(2019).