Provenance and geotectonic setting of the Palaeoproterozoic Zhongtiao   Group and implications for assembly of the North China Craton:   whole-rock geochemistry and detrital zircon data

doi:10.1144/0016-76492010-146

CORC > 北京大学 > 地球与空间科学学院

	Provenance and geotectonic setting of the Palaeoproterozoic Zhongtiao Group and implications for assembly of the North China Craton: whole-rock geochemistry and detrital zircon data
	Li, Q. ; Liu, S. ; Wang, Z. ; Shen, Y. ; Zhang, L. ; Zhang, J.
刊名	journal of the geological society
	2011
关键词	UPPER CONTINENTAL-CRUST U-PB GEOCHRONOLOGY METASEDIMENTARY ROCKS FUPING COMPLEX ISOTOPIC COMPOSITIONS TECTONIC IMPLICATIONS JIANGXIAN GROUP WESTERN BLOCK WUTAI COMPLEX EVOLUTION
DOI	10.1144/0016-76492010-146
英文摘要	Geochemical data reveal the contrasting geochemical characteristics of the metasediments in the Jiepailiang and Bizigou formations of the Palaeoproterozoic Zhongtiao Group, North China Craton. High Zr/Sc and SiO(2)/Al(2)O(3) values and especially the evolved and uniform nature of epsilon(Nd)(t) values plus detrital zircon U-Pb ages and Hf isotopic signatures for the former are consistent with derivation from an evolved felsic source with sedimentary recycling signs. However, lower values of SiO(2)/Al(2)O(3) and Zr/Sc, and higher contents of Fe(2)O(3)* and MgO for the latter indicate input of more mafic components. These geochemical characteristics, combined with the wide range of epsilon(Nd)(t) values, suggest that these rocks were derived in part from old continental material, dominated by felsic rocks of magmatic origin, and in part from a continental island arc, which accounts for the variable mixture of mafic components. These results suggest that the Zhongtiao Group was deposited after c. 2110 Ma, in a back- arc basin, behind an eastward- directed subduction system. Subsequent deformation and metamorphism reflect closure of the oceanic basin between the Eastern and Western blocks of the North China Craton, along the Trans- North China Orogen, contributing to amalgamation of the supercontinental Columbia.; Geosciences, Multidisciplinary; SCI(E); EI; 2; ARTICLE; 5; 1215-1224; 168
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/311203]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Li, Q.,Liu, S.,Wang, Z.,et al. Provenance and geotectonic setting of the Palaeoproterozoic Zhongtiao Group and implications for assembly of the North China Craton: whole-rock geochemistry and detrital zircon data[J]. journal of the geological society,2011.
APA	Li, Q.,Liu, S.,Wang, Z.,Shen, Y.,Zhang, L.,&Zhang, J..(2011).Provenance and geotectonic setting of the Palaeoproterozoic Zhongtiao Group and implications for assembly of the North China Craton: whole-rock geochemistry and detrital zircon data.journal of the geological society.
MLA	Li, Q.,et al."Provenance and geotectonic setting of the Palaeoproterozoic Zhongtiao Group and implications for assembly of the North China Craton: whole-rock geochemistry and detrital zircon data".journal of the geological society (2011).