地质科学2017，Vol.52Issue(2)：545-570,26.DOI:10.12017/dzkx.2017.036
新疆库鲁克塔格地区基性—超基性岩的年代学研究及构造意义
Ages and tectonic implications of the mafic-ultramafic intrusive rocks from the Quruqtagh domain, NW China
摘要
Abstract
The Tarim Craton is an important tectonic unit and a suitable target to investigate and understand the Proterozoic tectonic framework of the Central Asian orogenic belt and supercontinent Rodinia.Mafic-ultramafic-carbonatite rocks are widely distributed in the Quruqtagh domain of NE-tarim.In Quruqtagh,Cu-Ni,Fe-P and apatite-vermiculite deposits hosted in the mafic-ultramafic-carbonatite rocks occur in the Xingdi,Qieganbulake,Daxigou and Kawuliuke.These deposits related to the mafic-ultramafic-carbonatite rocks in Quruqtagh formed in the period between Paleoproterozoic and Neoproterozoic.The Paleoproterozoic Fe-P deposit is represented by the Daxigou deposit that yielded a SIMS U-Pb zircon age of 2 452± 10 Ma.The other Cu-Ni,Fe-P and apatite-vermiculite deposits hosted in the mafic-ultramafic rocks formed in the Neoproterozoic,represented by the Xingdi,Kawuliuke and Qieganbulake deposits that formed between 812 Ma and 707 Ma.The Paleoproterozoic mineralization event was coincident with the global collisional events that led to the assembly of the PaleoMesoproterozoic Columbia (Nuna) supercontinent.And the emplacement of these Neoproterozoic mafic-ultramafic-carbonatite rocks was related to a mantle plume event that led to the breakup of the Tarim Craton from the Rodinia supercontinent.关键词
SIMS锆石U-Ph/基性岩—超基性岩—碳酸岩/库鲁克塔格/塔里木克拉通/新疆Key words
SIMS zircon U-Pb/Mafic-ultramafic-carbonatite/Quruqtagh/Tarim Craton/Xinjiang分类
天文与地球科学引用本文复制引用
吴功成,丁嘉鑫,王忠梅,王庆飞,韩春明..新疆库鲁克塔格地区基性—超基性岩的年代学研究及构造意义[J].地质科学,2017,52(2):545-570,26.基金项目
国家自然科学基金项目(编号:40272017)资助. （编号:40272017）
