摘要
综述40Ar/39Ar同位素测年的基本理论和主要方法,阐述Ar/Ar法对地层、岩体的年代测试;通过对与成矿同期形成的蚀变矿物和部分金属硫化物确定矿床的成矿时代;通过对断裂构造变形/变质形成的变质矿物的测试约束断裂构造的活动;利用不同矿物的封闭温度的差异,来研究岩体、变质岩体和古老地块等的冷却速率和抬升速率。Ar/Ar法由于其精准定年、阶段加热、激光显微探针等技术必将成为最重要的同位素测年方法之一。
This article reviews the 40Ar/39Ar isotopic dating of the basic theories and main methods,elaborates the Ar/Ar method of stratum,rock's test.Through the fracture tectonic deformation/metamorphic minerals test constraints fracture tectonic activity.The cooling rate and the uplift rate of the rock,metamorphic rock and old blook are studied by the use of different mineral closure temperature differences.The Ar/Ar method because of its precise dating,stages of heating,laser microprobe technology will become the most important isotopic dating method.
出处
《资源环境与工程》
2013年第2期204-210,共7页
Resources Environment & Engineering
