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在我国某地大片古老变质岩系分布地区普遍发育着花岗伟晶岩脉,已知在伟晶岩形成的同时产生了多种稀有元素矿物,因之对找寻稀有元素矿物资源是一有利地区。现仅就某地伟晶岩中绿柱石的产出情况讨论其富集规律。一、含绿柱石伟晶岩脉的一般物性伟晶岩脉一般产于古老的花岗片麻岩和变质片岩中,其分布方向与区域构造方向一致,均近于东西方向平行分布,形态多成岩墙状、脉状、板状,亦有成不规则的透镜状者。
In our country a large area of ancient metamorphic rocks generally distributed in the distribution of granitic pegmatites, it is known that pegmatite formed at the same time produce a variety of rare element minerals, the search for rare element mineral resources is a favorable area . The enrichment law is only discussed on the output of beryl in pegmatite of a certain place. First, the general characteristics of pegmatite pegmatite Pegmatite is generally produced in the ancient granitic gneiss and metamorphic schist, the distribution direction and the regional tectonic direction, are nearly parallel to the east-west distribution, morphology and more Diagenetic wall-shaped, veins, plate-shaped, there are also irregular lens.