摘要
在复杂的太古代地体的重要地质事件定年中已采用了多种地质年龄测定方法。本文对方法学作了扼要的分析,涉及到不同类型岩石中方法应用的一些优点和缺陷、误差的来源,样品选择时所遇的困境、老化效应、模式年龄的意义和初始同位素比值的解释。
Various geochronometric methods have been applied to dating of important geologic events in complex Archean terranes. This paper presents a brief analysis of methodology. The analysis deals with some advantages and inconveniences of the methods employed on diverse rock types, limitations and source of errors, methodological dilemma in sample selection, the aging effect, significance of model ages and interpretation of initial isotopic ratios.
出处
《地球化学》
CAS
CSCD
北大核心
1989年第2期103-120,共18页
Geochimica
