地质年代学研究 meaning in Chinese

geochronologic study

3 . re - os isotope chronology study suggesting the forming of jinchuan nickel - copper deposit which is magmatic dominanted and multi - mineralization attributed may lasting a long period of time
Re ? os同位素地质年代学研究表明，以岩浆成矿作用为主但有多种成矿作用贡献的金川镍矿床的形成可能经历了长时期的演化过程。
On the basis of systematic analysis and comparative research on jianchaling and jinchuan nickel sulflde deposit in geology and geochemistry , some conclusions can be drawn as follow : ( 1 ) re - os isotopic geochronology data define an precise 878 ? 6 ma isochon , suggest jianchaling nickel sulflde deposit would form in new proterozoic . the rock - forming process and metal logenesis happened on the whole , this deposit subordinates to magmatic deposit
通过对煎茶岭和金川镍矿床地质、地球化学的系统分析与比较研究，取得以下新的认识和进展： ( 1 ) re ? os同位素地质年代学研究表明，煎茶岭硫化镍矿床形成于878ma前的新元古代，成矿作用和成岩作用基本上是同时进行的，属岩浆矿床。