According to the China Geological Survey, scientists from the Chengdu Center of the China Geological Survey have identified a large gneiss dome structure in the Cuo Nadong area, south of the Zaxi Kang ore concentration area in the eastern section of the Himalayan metallogenic belt in Tibet. The dome contains highly differentiated light-colored granite with multiple intrusive features, and thick skarn-type beryllium-tin-tungsten rare metal ore bodies have been discovered at the edge of the dome. Through sparse surface engineering control, one newly discovered beryllium-tin-tungsten rare metal deposit has been submitted, reaching a super-large scale, revealing that in addition to lead-zinc, gold, and antimony, the Himalayan metallogenic belt in Tibet also has huge potential for rare metal deposits such as beryllium, tin, and tungsten. This discovery is of great significance for re-understanding the metallogenesis of the Himalayan metallogenic belt and guiding regional mineral exploration.

　　It is reported that the newly discovered deposit in the Cuo Nadong area, south of the Zaxi Kang ore concentration area, is mainly beryllium, with associated tin and tungsten, and associated beneficial components such as Se-Ru-niobium-tantalum, lead-zinc-copper, and gold-silver. Preliminary investigation, evaluation, and research results reveal that the Cuo Nadong beryllium polymetallic deposit is of the skarn type. The ore bodies are mainly located in the skarn or skarnized marble in the outer contact zone. The beryllium polymetallic ore bodies occur in layers or sub-layers, with stable strata and uniform thickness changes. The main beryllium minerals are beryl and bertrandite, followed by euclase. The main metal minerals are cassiterite and scheelite, with chalcopyrite, galena, and pyrite as secondary minerals.

　　Although China is rich in beryllium resources, there are few large independent beryllium mines, and the resource endowment is relatively poor. Beryllium mainly coexists with lithium, niobium, and tantalum, and the average grade of the deposits is far lower than that of other countries. The first discovery of the super-large Cuo Nadong beryllium rare metal deposit in the southern Zaxi Kang ore concentration area in Tibet is of great theoretical and practical significance. Firstly, it is a newly discovered ore type in the Himalayan metallogenic belt in Tibet, with huge scale and potential, revealing the tip of the iceberg of large-scale rare metal mineralization in the Miocene light-colored granite in the Himalayan metallogenic belt, and promoting a re-understanding of the metallogenesis and exploration potential of the Himalayan metallogenic belt. Secondly, it has opened a new exploration window, expanding new exploration fields and space, and confirming that the Himalayan metallogenic belt may become a new beryllium-tungsten-tin-rich area in China, which is of great significance for driving regional mineral exploration and accelerating the construction of new rare metal bases in western China. Thirdly, it establishes a metallogenic theory for the integrated exploration area in Tibet.