论文部分内容阅读
由花岗岩类岩浆导致形成的流体爆发构造通常赋存于浅成分异侵入体内,它们常常与裂隙型次火山侵入体有关。这类构造主要发育在地槽区(地中海带,太平洋带等)和独立的活化区(外贝加尔,哈萨克斯坦),但在地盾区也有所见(非洲的祖麦布,芬兰的伊洛亚尔维等),不过难以判别,至今仅在个别地方作过研究。在花岗岩类岩浆的流体爆发构造中,赋存有一大批对酸性岩和中性岩特征的金属和非金属矿产,其中以金矿、多金属矿、稀有金属矿、铜矿和萤石矿为最典型。
Fluid bursts formed by granitoids usually occur in shallow intrusions, and they are often associated with fractured subvolcanic intrusions. Such structures are mainly found in the terrain area (Mediterranean belt, Pacific belt, etc.) and in the independent activation zone (Outer Baikal, Kazakhstan), but also in the shield zone (Zumab in Africa, Iloilo in Finland Erwei, etc.), but it is difficult to distinguish, so far only in individual places have been studied. A large number of metallic and non-metallic minerals characterized by acidic rocks and neutral rocks are present in the fluid explosion structure of granitic magmatic rocks. Among them, gold ore, polymetallic ore, rare metal ore, copper ore and fluorite ore are the most abundant typical.