Active surface salt structures of the western Kuqa fold-thrust belt,   northwestern China

doi:10.1130/GES01021.1

CORC > 北京大学 > 地球与空间科学学院

	Active surface salt structures of the western Kuqa fold-thrust belt, northwestern China
	Li, Jianghai ; Webb, A. Alexander G. ; Mao, Xiang ; Eckhoff, Ingrid ; Colon, Cindy ; Zhang, Kexin ; Wang, Honghao ; Li, An ; He, Dian
刊名	geosphere
	2014
关键词	TARIM BASIN TIAN-SHAN HIMALAYAN TECTONICS KUCHE DEPRESSION FORELAND BASIN TIEN-SHAN NW CHINA DEFORMATION EVOLUTION STRATA
DOI	10.1130/GES01021.1
英文摘要	The western Kuqa fold-thrust belt of Xinjiang Province, China, hosts a series of surface salt structures. Here we present preliminary analysis of the geometry, kinematics, and surface processes of three of these structures: the Quele open-toed salt thrust sheet, Tuzimazha salt wall, and Awate salt fountain. The first two are line-sourced, the third appears to be point-sourced, and all are active. The similar to 35-km-long, 200-m-thick Quele open-toed salt thrust sheet features internal folding, salt-lined transfer structures, dissolution topography, flanking growth strata, and alluvial fan/stream-network interactions. The similar to 10-km-long, 50-m-wide Tuzimazha salt wall marks a local topographic high, such that fluvial stream networks are deflected by the rising weak tabular salt body. The salt wall is also flanked by growth strata and normal faults. The similar to 2-km-long Awate salt fountain represents salt exhumation coincident with the intersection of multiple structures and a river. Therefore this salt body may respond to local structural and/or erosional variations, or it may play a key role determining such variations- or both. Activity along all three structures confirms that active deformation occurs from foreland to hinterland across the western Kuqa fold-thrust belt. Gradual lateral transition from bedded strata to flow-banded halite observed within the Quele open-toed salt thrust sheet implies that similar transitions observed in seismic reflection data do not require interpretation as diapiric cut-off relationships. The surface salt structures of the western Kuqa fold-thrust belt display a variety of erosiontectonics interactions, with nuances reflecting the low viscosity and high erodibility of salt, including stream deflections, potential tectonic aneurysm development, and even an upper-crustal test site for channel flow-focused denudation models.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000346752400010&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Geosciences, Multidisciplinary; SCI(E); EI; 0; ARTICLE; awebb@lsu.edu; 6; 1219-1234; 10
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/310920]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Li, Jianghai,Webb, A. Alexander G.,Mao, Xiang,et al. Active surface salt structures of the western Kuqa fold-thrust belt, northwestern China[J]. geosphere,2014.
APA	Li, Jianghai.,Webb, A. Alexander G..,Mao, Xiang.,Eckhoff, Ingrid.,Colon, Cindy.,...&He, Dian.(2014).Active surface salt structures of the western Kuqa fold-thrust belt, northwestern China.geosphere.
MLA	Li, Jianghai,et al."Active surface salt structures of the western Kuqa fold-thrust belt, northwestern China".geosphere (2014).