fractionation of magma 中文意思是什麼
fractionation of magma
解釋
巖漿分離作用- fractionation : n. 【化學】分餾（法）；分層分離，分級分離，份化。
- of : OF ＝Old French 古法語。
- magma : n. （pl. magmata , magmas） （礦物，有機物等的）稀糊狀混合物；【地質學；地理學】巖漿；稠液；【藥學】乳漿劑。
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4 ree geochemistry of fluorite, siderite, quartz, magnetite, calcite in ores mainly controlled by ore - forming fluids, in contrasting to those of the metamorphic minerals which controlled by crystal structure. the ore - forming fluids of initial stage show larger lree / hree fractionation than that of later stage. a narrow range of 6 ~ 4s valus for early stage chalcopyrite ( - 0. 3 to 2. 8 ) suggested that s originated from the mantle and the 6 13c and 8 18o valus of siderite range from - 11. 17 to - 15. 37 % and from 8 ~ 9. 1, respectively, it indicates that the c and o of ore - forming fluids were derived from the magma or organogenous sediment
6 、昆陽群因民組地層中出現的稀土富集、成礦與我國的白雲鄂博稀土ree一fe一nb超大型礦一床和澳大利亞的olympicdamcu一u一au一ag一ree超大型礦一床，在成礦時代、產出大地構造背景、成礦物質來源等方面具有較大的相似性，均體現成礦受控于中元古代1
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