西北地质2018，Vol.51Issue(1)：137-143,7.
塔里木盆地早古生代桑塔木组辉绿岩SHRIMP锆石U-Pb年龄及成因讨论
SHRIMP Zircon U-Pb Dating of Diabase in Early Paleozoic Sangtamu Formation in, Tarim Basin and Its Genesis
摘要
Abstract
In addition to the main Permian magmatic activities and a few Precambrian magmatic activities occurred in Tarim Basin,there is still lack of conclusive evidence that any magmatic activities happened in other times.This paper reports SHRIMP zircon U-Pb ages of diabase from the well shunbei-1 in Upper Ordovician Sangtamu Formation of Tarim Basin.The zircon U-Pb dating show that these diabases have age of (444± 3) Ma,belonging to Upper Ordovician.In combination with seismic profiles and previous geochronology,this intrusion was considered to be the product of the mantle-derived basaltic magma intruded into the shallow level,which was resulted from the subduction and collision between West Kunlun-Altyn oceanic basin and the southern margin of Tarim plate.关键词
SHRIMP锆石U-Pb定年/辉绿岩/桑塔木组/塔里木盆地Key words
SHRIMP zircon U-Pb dating/diabase/Sangtamu Formation/Tarim Basin分类
天文与地球科学引用本文复制引用
马庆佑,唐照星,韩强..塔里木盆地早古生代桑塔木组辉绿岩SHRIMP锆石U-Pb年龄及成因讨论[J].西北地质,2018,51(1):137-143,7.基金项目
国家科技重大专项任务“塔里木盆地海相黑色泥页岩地层沉积特征及其页岩气潜力研究“(2017ZX05036-001-003)资助 （2017ZX05036-001-003）
