high fluorine geochemical region 高氟地球化学区
This area is the geochemical one with high copper background value and has the favourable condition for copper mineralization.
本区为铜的地球化学高背景场区，具有较好的铜矿成矿条件。
The study on regional strata trace elements shows that the strata of Western Hunan are rich in arsenic, and Western Hunan is a high regional geochemical abnormal region for arsenic.
区域地层微量元素地球化学研究表明，湘西所出露的地层均显著富集砷，是砷的高区域地球化学异常区。
The geochemical study on meso basic meta volcanics in Zhangchun group, northeast Jiangxi shows island arc tholeiite is characteristic of low K and high Na contents;
赣东北张村岩群所含之中基性变火山岩的地球化学研究表明：其主元素具低钾高钠；
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