锆石国际标准样和华南玻璃陨石的裂变径迹年龄测定  

FISSION TRACK DATING OF INTERNATIONAL ZIRCON GEOSTANDARD AND TEKTITE FROM SOUTH CHINA

作　　者：张峰[1] 刘顺生[2] 

机构地区：[1]中国科学院地球化学研究所 [2]中国科学院大地构造研究所

出　　处：《地球化学》1989年第3期271-275,共5页Geochimica

基　　金：国家自然科学基金;基金号854282

摘　　要：从美国科罗拉多州西南部菲什峡谷的凝灰岩中分选出来的锆石,已定为裂变径迹年龄测定方法的国际标准样。本文报道对锆石国际标准样和华南玻璃陨石的裂变径迹年龄测定结果,完成的数据与其他国内外实验室数据在误差范围内吻合,并特别详细介绍了锆石裂变径迹的蚀刻方法。The International Zircon Geostandard from the Fish Canyon tuff of southwestern Colo-rado and tektite from South China were dated by fission track method. The results are 26.8 ±4.3 Ma and 0.69± 0.11 Ma, respectively. The age of the Zircon Geostandard is consistent with the results of other laboratories in the world and K-Ar ages are within error limits. The age of tektite from South China is consistent with our provious results and others. The experimen-tal procedures, especially for fission track et hing of zircon, are described in detail.

关 键 词：锆石 玻璃陨石 裂变径迹 年龄测定 

分 类 号：P578.941[天文地球—矿物学]