摘要
通过不同时间蚀刻的锆石径迹长度测量,确定海南迅速冷却火山型锆石的水平封闭径迹(HCT)平均长度L=10.93μm,标准偏差为0.93μm,可作为锆石长度测量的参照标准。对锆石的蚀刻标准进行了探讨,确立垂直C轴的表面径迹宽度Dpar为(1.0±0.5)μm的蚀刻标准,要求Dpar>1μm和Dpar<1μm的颗粒数应大致相当,以及封闭径迹宽度DHCT<1.0μm的测量标准。
Horizontal confined fission-track (HCT) length of quick-cooling volcanic zircon in Hainan Province was determined as 10.93 μm with deviation 0.93 μm, which can be used as reference framework for length measurement.By step-by-step etching, study was focused on etching standard to avoid over-etching factor for length measurement. Suitable etching standard is suggested with D_(par) (1.0±0.5) μm and same grain numbers for D_(par)>1 μm and D_(par)<1 μm and measuring standard is D_(HCT)<1.0 μm.
出处
《岩矿测试》
CAS
CSCD
北大核心
2004年第4期251-255,共5页
Rock and Mineral Analysis
基金
国家自然科学基金项目(40072068)
核分析实验室开放基金
