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近年来,我们在川西南地区的霓辉石脉、霓辉石正长岩脉、石英正长霓辉石脉以及碱性煌斑岩脉中,发现了一些少见的铀钍矿物。其中斜方钛铀矿为国内外首次发现,另外方铀钍石、铀钛磁铁矿、晶形十分完整的钍石、铈铀钛铁矿,含铀铈磷灰石、含铀氟碳铈矿、含铀氟碳铈镧矿等也是不常见的铀钍矿物及稀土矿物。该区矿化岩石的种类较多,本文着重介绍霓辉石脉中的铀钍矿物——方铀钍石的特征。
In recent years, we have found some rare uranium-thorium minerals in the Niig-Shi veins, the Ni-Shih syenite veins, the quartz-hosted Ni-ghite veins and the alkaline lamprophyre veins in southwestern Sichuan. Among them, the orthorhhxite uranium deposit was first discovered at home and abroad. The other uranium-thorium stone, uranium-titanium magnetite, thorium stone with complete crystal form, cerium-uranium ilmenite, uranium-containing cerium apatite and uranium-containing bastnaesite , Containing uranium bastnaesite and other rare earth uranium thorium minerals and rare earth minerals. There are many types of mineralized rocks in this area. This article focuses on the characteristics of uranium-thorium minerals in the Ni-Hui Shikuang-side uranium-thorium stone.