Rapid cooling of the Yanshan Belt, northern China: Constraints from Ar-40/Ar-39 thermochronology and implications for cratonic lithospheric thinning

doi:10.1016/j.jseaes.2014.04.017

	Rapid cooling of the Yanshan Belt, northern China: Constraints from Ar-40/Ar-39 thermochronology and implications for cratonic lithospheric thinning
	Wu, Lin 1,2; Wang, Fei 1; Lin, Wei 1; Wang, Qingchen 1; Yang, Liekun 1; Shi, Wenbei 1; Feng, Huile 1,2
刊名	JOURNAL OF ASIAN EARTH SCIENCES
	2014-08-15
卷号	90 页码:107-126
关键词	Cretaceous plutons Rapid cooling events Ar-40/Ar-39 thermochronology Crustal thinning Yanshan Belt North China Craton
ISSN号	1367-9120
DOI	10.1016/j.jseaes.2014.04.017
文献子类	Article
英文摘要	The Yanshan Orogenic Belt is located in the northern part of the North China Craton (NCC), which lost similar to 120 km of lithospheric mantle during Phanerozoic tectonic reactivation. Mesozoic magmatism in the Yanshan fold-and-thrust belt began at 195-185 Ma (Early Jurassic), with most of the granitic plutons being Cretaceous in age (138-113 Ma). Along with this magmatism, multi-phase deformational structures, including multiple generations of folds, thrust and reverse faults, extensional faults, and strike-slip faults are present in this belt. Previous investigations have mostly focused on geochemical and isotopic studies of these magmatic rocks, but not on the thermal history of the Mesozoic plutons. We have applied Ar-40 /Ar-39 thermochronology to biotites and K-feldspars from several Lower Cretaceous granitic plutons to decipher the cooling and uplift history of the Yanshan region. The biotite Ar-40/Ar-39 ages of these plutons range from 107 to 123 Ma, indicating that they cooled through about 350 degrees C at that time. All the K-feld-spar step-heating results modeled using multiple diffusion domain theory yield similarly rapid cooling trends, although beginning at different times. Two rapid cooling phases have been identified at ca. 120-105 and 100-90 Ma. The first phase of rapid cooling occurred synchronously with widespread extensional deformation characterized by the formation of metamorphic core complexes, A-type magmatism, large-scale normal faults, and the development of half-graben basins. This suggests rapid exhumation took place in an extensional regime and was a shallow-crustal-level response to lithospheric thinning of the NCC. The second phase of rapid cooling was probably related to the regional uplift and unroofing of the Yanshan Belt, which is consistent with the lack of Upper Cretaceous sediments in most of the Yanshan region. (C) 2014 Elsevier Ltd. All rights reserved.
WOS关键词	METAMORPHIC CORE COMPLEX ; MESOZOIC EXTENSIONAL TECTONICS ; SINO-KOREAN CRATON ; U-PB AGES ; CRUST-MANTLE INTERACTION ; EARLY CRETACEOUS BASIN ; ASIAN OROGENIC BELT ; INNER-MONGOLIA ; EASTERN CHINA ; THRUST BELT
WOS研究方向	Geology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000338394700010
资助机构	China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; 41221002) ; 41221002) ; 41221002) ; 41221002) ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; 41221002) ; 41221002) ; 41221002) ; 41221002) ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; 41221002) ; 41221002) ; 41221002) ; 41221002) ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; China Natural Science Foundation(41025010 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB03020203) ; 41221002) ; 41221002) ; 41221002) ; 41221002)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/86214]
专题	中国科学院地质与地球物理研究所
通讯作者	Wu, Lin
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Lin,Wang, Fei,Lin, Wei,et al. Rapid cooling of the Yanshan Belt, northern China: Constraints from Ar-40/Ar-39 thermochronology and implications for cratonic lithospheric thinning[J]. JOURNAL OF ASIAN EARTH SCIENCES,2014,90:107-126.
APA	Wu, Lin.,Wang, Fei.,Lin, Wei.,Wang, Qingchen.,Yang, Liekun.,...&Feng, Huile.(2014).Rapid cooling of the Yanshan Belt, northern China: Constraints from Ar-40/Ar-39 thermochronology and implications for cratonic lithospheric thinning.JOURNAL OF ASIAN EARTH SCIENCES,90,107-126.
MLA	Wu, Lin,et al."Rapid cooling of the Yanshan Belt, northern China: Constraints from Ar-40/Ar-39 thermochronology and implications for cratonic lithospheric thinning".JOURNAL OF ASIAN EARTH SCIENCES 90(2014):107-126.