在喜马拉雅山脉锡金Subuk-Rishi地区中,靠近布克赛和冈瓦纳岩层接触带附近的许多放射性矿点中,以钛铀矿-镧铀钛铁矿的热液脉和浸染作用形式产于布克赛组的碳酸盐岩中(晚古生代)和冈瓦纳亚组下段的石英砂质岩中,碳酸盐岩是纯石灰岩和纯白云岩之间的 In the Subuk-Rishi area of ​​the Sikkim in the Himalayas, many of the radioactive deposits near the contact areas of the Bukcesai and Gondwana formations are produced in the form of hydrothermal veins and disseminations of the titanium-bearing uranium-lanthanum uranium ilmenite In carbonate reservoirs (Late Paleozoic) of the Kesai Formation and quartz sandstones in the lower part of the Gondwana Formation, carbonate rocks are between pure limestone and pure dolomite