南天山西段古生代火山岩Ar—Ar年龄新资料

南天山西段古生代火山岩Ar—Ar年龄新资料

龚福华1, 李曰俊2, 王清华3, 胡世玲3, 黄智斌3, 罗俊成3

1. 石油大学，北京 102249; 2. 中国科学院地质与地球物理研究所，北京 100029 ; 3. 中国石油塔里木油田分公司，北京 100000

收稿日期:2003-09-20 修回日期:2003-09-20 出版日期:2003-09-20 发布日期:2003-09-20

New Ar-Ar Geochronologic Rocks in the Western Segment Data of Paleozoic Volcanic of Chinese Southern Tianshan

GONG Fu-hua1, LI Yue-jun2, WANG Qing-hua3，HU Shi-ling3, HUANG Zhi-bin3, LUO Jun-cheng3

1. University of Petroleum, Beijing 102249, China; 2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China; 3. Tarim Oil Field Branch Company, China National Petroleum Corp., Beijing 100000, China

Received:2003-09-20 Revised:2003-09-20 Online:2003-09-20 Published:2003-09-20

摘要/Abstract

摘要： 根据新近采自中国南天山西段志留-泥盆系乌帕塔尔坎群中的安山岩样品和石炭一二叠纪康克林组上部英安岩角砾样品的全岩Ar-Ar定年测试，乌帕塔尔坎群安山岩的坪年龄为427．70±0．60Ma，等时年龄为426．96±4．57Ma；康克林组上部的英安岩角砾的坪年龄为288．16±0．40Ma，等时年龄为289．18±2．02Ma。测试结果为研究中国南天山(西段)古生代造山带的构造体系提供了新的依据。

Abstract: The samples were collected in the western part of Chinese Southern Tianshan Mountains．The rock types for Ar-Ar analysis are andesite in the Wupataerkan Group of the Silurian to Devonian age and quartz andesite breccia in the Kangkelin Formation of the Carboniferous to Permian age．The plate and isochron ages of the former sample are 427.70±0.60 Ma and 426.96±4.57 Ma respectively；and those of the latter sample are 288.16± 0.40 Ma and 289.．18±2.02 Ma，respectively．The 40Ar-39Ar geochronologic date reported here provide new information for the study in the Chinese Southern Tianshan orogenic belt．

龚福华, 李曰俊, 王清华, 胡世玲, 黄智斌, 罗俊成. 南天山西段古生代火山岩Ar—Ar年龄新资料[J]. J4.

GONG Fu-hua1, LI Yue-jun2, WANG Qing-hua3，HU Shi-ling3, HUANG Zhi-bin3, LUO Jun-cheng3. New Ar-Ar Geochronologic Rocks in the Western Segment Data of Paleozoic Volcanic of Chinese Southern Tianshan[J]. J4.