isotopic deposit 中文意思是什麼
isotopic deposit
解釋
同區沉積-
Undertaking isotopic geochronological study on ar - ar, adopted the fast - neutron activation dating technique to test 40ar - 39ar age of quartz from au - bering quartz veinlet ore in the deposit, and well - defined plateau age of 210. 59 ma ?. 92 ma, the lowest apparent age of 208. 07 ma ?. 22 ma, and isochron age of 207. 14 ma ? 1. 92 ma
通過流體包裹體顯微測溫學研究，表明金礦床的均一溫度成礦早階段為270 320 ，成礦主階段為170 250 ，成礦晚階段為110 250 ，呈逐漸降低的趨勢，低溫成礦作用明顯。 -
90 ' s it was found in shizishan, yimen, indicated that the type deposit is well explorative prospect in dongchuan - yinmen. by sum up the data of trace elements, isotopic elements, fluid inclusions and minerogenetic age et al.,
稀礦山式銅礦以落雪礦區稀礦山礦段最為典型，主要分佈在因民落雪大喬地?稀礦山、濫山、磨子山，濫泥坪6 ? 4巷、白錫臘和拖布卡地區。 -
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
通過對煎茶嶺和金川鎳礦床地質、地球化學的系統分析與比較研究，取得以下新的認識和進展： （ 1 ） re ? os同位素地質年代學研究表明，煎茶嶺硫化鎳礦床形成於878ma前的新元古代，成礦作用和成巖作用基本上是同時進行的，屬巖漿礦床。
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