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Large skarn-type bismuth-tin-tungsten rare metal ore body discovered in Tibet

Large skarn-type bismuth-tin-tungsten rare metal ore body discovered in Tibet

Author:
Source:
Release time:
2018/03/16
[Abstract]:
According to the China Geological Survey, scientists from the Chengdu Geological Survey of the China Geological Survey identified a large gneiss dome structure and a high differentiation

According to the China Geological Survey, scientists from the Chengdu Geological Survey of the China Geological Survey identified a large gneiss dome structure and a high differentiation within the Qianlong area in the south of the Zhaxikang ore belt in the eastern part of the Himalayan metallogenic belt in Tibet. The pale-colored granite has multi-period intrusion characteristics, and a thick skarn-type strontium-tin-tungsten rare metal ore body is found in the edge of the dome. Through sparse surface engineering control, a new discovery of a rare bismuth-tin-tungsten rare metal mineral deposit was reached, reaching a super-large scale, revealing the Tibetan Himalayan metallogenic belt in addition to lead, zinc, gold, antimony and other minerals, antimony, tin and tungsten. Such rare metal minerals also have great potential. This discovery is of great significance for re-recognizing the mineralization of the Himalayan metallogenic belt and guiding regional prospecting.

 

According to reports, the newly discovered deposits in the Cannadong area in the southern part of the Zhaxikang mining area are dominated by strontium, which is symbiotic with tin-tungsten, accompanied by beneficial components such as Se-Ru-铌-钽, lead-zinc-copper and gold-silver. The preliminary investigation and evaluation results reveal that the Sinnadong polymetallic deposit is a skarn type, and the ore body is mainly produced in the skarn or skarnized marble in the outer contact zone, and the strontium polymetallic ore body is layered. Shape or layer-like output, stable layer, uniform thickness variation, strontium-containing minerals are mainly silicon vermiculite, hydroxysilicon vermiculite, followed by fragrant stone, metal minerals are mainly cassiterite, scheelite, secondary yellow Copper ore, galena, pyrite, etc.

 

Although China's alfalfa resources are abundant, there are few large-scale independent antimony mines and poor resource endowments. They are mainly associated with mines such as lithium, antimony and antimony. The average grade of mineral deposits is far lower than that of other countries. The first discovery of the super-large rare earth metal deposit in the south of the Zhaxikang mining area in Tibet has important theoretical and practical significance. First, the newly discovered minerals and types in the Himalayan metallogenic belt in Tibet, with large scale and potential, revealing the tip of the iceberg of large-scale rare metal mineralization of the Miocene pale-colored granite in the Himalayan metallogenic belt, promoting the re-recognition of the Himalayan belt mineralization Belt mineralization and prospecting potential. The second is to open a new prospecting window, expand new prospecting areas and prospecting space, and confirm that the Himalayan metallogenic belt may become China's new thorium-tungsten-tin resource enrichment area, which will lead the region to prospect and accelerate the western part of China. The construction of new rare metal bases is of great significance. The third is to establish the ore-forming theory of Tibet's self-contained exploration area.

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