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A preliminary experimental investigation on genesis of topaz greisen

机译:黄玉绿色起源的初步实验研究

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摘要

Topaz was previously considered as a typical hydrothermal mineral, and topaz greisen a typically altered rock. However, the geological and geochemical evidence in recent years has made it clear that the layer-like topaz greisen at the top of Ta- and Nb-bearing albite granite has magmatic characteristics. In this note, the possibility of magmatic crystallization for topaz greisen is investigated experimentally in the system albite granite-H_2O-HF at 10~8 Pb and up to 6% F condition.
机译:黄玉以前被认为是典型的热液矿物,而黄玉绿岩通常被认为是蚀变的岩石。然而,近年来的地质和地球化学证据已经清楚地表明,在含Ta和Nb的钠长石花岗岩顶部的层状托帕石greisen具有岩浆特征。在此说明中,通过实验在10〜8 Pb和高达6%F的条件下,在钠长石花岗岩-H_2O-HF体系中,对黄玉格力森岩发生岩浆结晶的可能性进行了研究。

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