再者它是外生矿床——高砷煤、高氟煤、高硫煤、高汞煤形成的主要原因。
Moreover, it is a main reason for the formation of some exogenic deposits like As-high, F-high, s-high or Hg-high coal.
外生稀土矿床中最重要的是海滨砂矿。
Shore REE placer is one of the most important exogenetic ore deposits of REE.
这实际是一套外生铀矿床的“地球化学盆”模式。
And it is the geochemical basin model of the exogenic U deposit.
湖南变质岩区的内生与外生金矿床均以高成色的单一自然金产出为特征。
Endogenic and exogenic gold deposits in metamorphic regions in Hunanare characterized by occurrence of high-percentage single natural gold.
以地质作用为主要依据，将中国磷矿分为内生磷矿床、外生磷矿床和变质磷矿床三大类。
According to geological performances, Chinese phosphate deposits may be grouped into endogenic, exogenic and metamorphic.
以地质作用为主要依据，将中国磷矿分为内生磷矿床、外生磷矿床和变质磷矿床三大类。
According to geological performances, Chinese phosphate deposits may be grouped into endogenic, exogenic and metamorphic.
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