Isotopic age has become an important means solving geological problems.
岩石同位素年龄已成为解决地质问题的一个重要手段。
Obviously, it is very difficult to determine the initial age of subduction by using the isotopic age of only one geological event.
显然，如果只想使用任何一种地质事件的年龄来确定碰撞作用的初始作用时间都是很困难的。
An approach has been made to the ore genesis from the ore composition, the typical mineral assemblage, the mineral geological thermometer, the K-Ar isotopic age, the sulfur iso - topic dat...
并从矿石物质成分、典型矿物组合、同位素组成、稀土元素丰度型式，以及矿化分布和相关分析等方面、探讨了成岩成矿的物质来源及成因问题。
An approach has been made to the ore genesis from the ore composition, the typical mineral assemblage, the mineral geological thermometer, the K-Ar isotopic age, the sulfur iso - top...
并从矿石物质成分、典型矿物组合、同位素组成、稀土元素丰度型式，以及矿化分布和相关分析等方面、探讨了成岩成矿的物质来源及成因问题。
An approach has been made to the ore genesis from the ore composition, the typical mineral assemblage, the mineral geological thermometer, the K-Ar isotopic age, the sulfur is...
并从矿石物质成分、典型矿物组合、同位素组成、稀土元素丰度型式，以及矿化分布和相关分析等方面、探讨了成岩成矿的物质来源及成因问题。
An approach has been made to the ore genesis from the ore composition, the typical mineral assemblage, the mineral geological thermometer, the K-Ar isotopic age, the sulfur is...
并从矿石物质成分、典型矿物组合、同位素组成、稀土元素丰度型式，以及矿化分布和相关分析等方面、探讨了成岩成矿的物质来源及成因问题。
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