Provenance of the Early-Middle Devonian Shugouzi Formation in the Quruqtagh,Northeastern Xinjiang:Constraints from Sandstone Geochemistry and Heavy Mineral Analysis

作     者：ZHANG Yingli WANG Zongqi WANG Tao ZHANG Yingli;WANG Zongqi;WANG Tao

作者机构：MNR Key Laboratory of Metallogeny and Mineral AssessmentInstitute of Mineral ResourcesChinese Academy of Geological SciencesBeijing 100037China Institute of GeologyChinese Academy of Geological SciencesBeijing 100037China 

出 版 物：《Acta Geologica Sinica(English Edition)》 (地质学报（英文版）)

年 卷 期：2022年第96卷第1期

页      面：193-207页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：financially supported by Deep Resources Exploration and Mining Project(Grant No.2019YFC0605202) Chinese Geological Survey(Grant No.DD20221684) 

主　　题：Shugouzi Formation provenance analysis tectonic setting passive continental margin Quruqtagh 

摘      要：The Early-Middle Devonian Shugouzi Formation in the Quruqtagh block consists mainly of clastic ***,their provenance has been scarcely studied since it was *** of clastic rocks was commonly used to interpret the *** heavy mineral analyses help frame the U-Pb age from zircon grains,integrated with geochemical data from detrital tourmaline and *** techniques were used to characterize components of the sediment flux and define erosion areas in the Qurugtagh block,further providing evidence about the tectonic evolution of the South Tianshan and Tarim *** maximum depositional age constrained by detrital zircon dating was Early-Middle *** diagrams for sedimentary provenance using major and trace elements indicate that continental island arc-related felsic rocks were the major source rocks for the Shugouzi *** tourmalines are dravite and *** results of detrital tourmaline electron probe microanalysis(EPMA)show that the source rocks are mainly metasedimentary rocks and *** detrital chromian spinels within the sediments are characterized by high chroumium(Cr^(#))and varying magnesium(Mg^(#)).The discrimination plots reveal that these spinels were sourced from island arc magmatic *** laser ablation inductively-coupled plasma mass spectrometry(LA-ICP-MS)U-Pb chronology of detrital zircons suggests that the sediments were derived mainly from 414-491 Ma and 744-996 Ma magmatic *** restoration,sandstone geochemistry,EPMA,and detrital zircon geochronology indicate that the source rocks were predominantly derived from Late Ordovician and Devonian magmatic rocks and subordinately from recycled Neoproterozoic magmatic *** analyses of the source areas suggest that a remnant arc still existed in the Early Devonian and the Shugouzi Formation was deposited in a passive continental margin.