中国西部喀喇昆仑—昆仑山地区火山岩的^(40)Ar-^(39)Ar年龄及地质意义  

^(40)Ar-^(39)Ar DATINGS FOR VOLCANIC ROCKS FROM KARAKORUM—KUNLUN MOUNTAINS,WEST CHINA,AND ITS GEOLOGICAL IMPLICATIONS

作　　者：林清茶[1] 夏斌[1] 张玉泉[1] 

机构地区：[1]中国科学院广州地球化学研究所边缘海地质重点实验室,广州510640

出　　处：《地质科学》2007年第2期388-394,共7页Chinese Journal of Geology(Scientia Geologica Sinica)

基　　金：中国科学院重点基金项目(批准号:40534019);中国科学院知识创新工程重要方向项目(编号:KZCX2-SW-117)

摘　　要：本文对中国西部喀喇昆仑—昆仑山地区通天桥火山岩、阿鲁克库勒的9号和10号次火山岩获得的40Ar-39Ar年龄分别为69.2Ma、1.00Ma和0.37Ma,邦达错橄榄玄武岩的K-Ar年龄为44Ma,据此对青藏高原北部地区火山作用的时空演化规律进行探讨。The studies on dating of ^40Ar-39Ar showed that the dating results were 69.2 Ma, 1.00 Ma, 0.37 Ma and 44 Ma for the volcanic rocks at Tongtianqiao, Ashikule-Alukekule and Bangdacuo respectively. Based on them as well as other data, the time of the volcanic action and space-time evolution of the Cenozoic volcanism in northern Tibet were discussed.

关 键 词：AR-AR年龄 火山岩 晚白垩世 新生代 喀喇昆仑-昆仑山地区 

分 类 号：P597[天文地球—地球化学]