secondary isochron二次等时线
isochron layer同期层
sr isochronsr同位素
isochron map等时图
isochron dating等时线年龄测定
mantle isochron地幔等时线
isochron surface同期面;等时面
nd isochronnd同位素
Re-Os dating of Laojunshan molybdenum deposit gives an isochron age of 114.3±3.4Ma.
辉钼矿Re-Os同位素等时线年龄为114.3±3.4Ma。
参考来源 - 豫西老君山花岗岩体特征及其成矿作用N（名词） a line on an isotope ratio diagram denoting a suite of rock or mineral samples all formed at the same time. The slope of the line is related to the age of the rock or mineral suite 等时线