西北地质2018，Vol.51Issue(1)：1-12,12.
新疆西昆仑塔什库尔干高压变质岩的重新厘定及其构造意义
Redefinition of High Pressure Metamorphic Rocks from West Kunlun Orogen and Its Tectonic Significance
摘要
Abstract
A set of "Grt-Pl-Hbl gneiss and Sil-Grt-Bit-Pl gneiss" has been disintegrated from the eastern part of Tashkurghan area in West Kunlun.According to the geochemical characteristics study,the Grt-Pl-Hbl gneiss was derived from basic volcanic rocks,with the features of island-arc basalt.In the discrimination diagram,their samples are plotted in the field of islandarc basalt.The Sil-Grt-Bit-Pl gneiss was sourced from clastic rocks.In the discrimination diagram,their samples are plotted in the active continental margin and in the continental arc.According to the isotope chronology,the Grt-Pl-Hbl gneiss was formed in early Cambrian epoch.Since the formation of magma,the Grt-Pl-Hbl gneiss has experienced four notable thermal events in Silurian,Permian,Cretaceous and Miocene.The redefinition of high pressure metamorphic rocks in this area has a great significance to discussing the tectonic evolution in West Kunlun.关键词
地球化学/锆石U-Pb定年/构造意义Key words
geochemistry/U-Pb dating/tectonic significance分类
天文与地球科学引用本文复制引用
高廷斌,杨震,姚刚,张宗欣,朱慧秦,魏巍,秦江龙..新疆西昆仑塔什库尔干高压变质岩的重新厘定及其构造意义[J].西北地质,2018,51(1):1-12,12.基金项目
新疆地质勘查中央专项资金“新疆塔什库尔干县辛迪一带铁矿预查”(ZYZXKC2013-05)项目 （ZYZXKC2013-05）
