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四川大水沟碲矿床是迄今为止世界上发现的唯一独立碲矿床,作者在对该矿床进行矿物学研究过程中,发现在楚碲铋矿中包含许多细小的蠕虫状、线状或细长条状出溶矿物,这是首次在碲矿物中发现如此复杂的山溶现象,笔者将楚碲铋矿+细小出溶矿物区域称为复杂出溶带.本文在对其作了较详细研究后,对其成因提出初步见解.1 矿床地质简介大水沟碲矿床位于四川省石棉县境内,主要出露于扬子地台西缘大渡河韧性剪切带中,围岩系一套变基性火山岩.目前在大水沟矿区初步查明有13条矿脉呈NNE向排列,明显受断裂控制.辉碲铋矿为最重要的碲矿物,其他碲矿物有楚碲铋矿、碲铋矿、硫碲铋矿等,伴生的硫化物主要为磁黄铁矿、黄铜矿等.
The Dashuigou tellurium deposit in Sichuan Province is by far the only independent tellurium deposit discovered in the world. During the mineralogical study of this deposit, the authors found that many small wormlike, linear or elongated strips are found in the beryl bismuth mine Shaped dissolution minerals, this is the first time that tellurium minerals found in such a complex phenomenon of mountain dissolution, the author will tellurite bismuth ore + fine dissolution of the mineral area is called the complex dissolution zone.This paper made a more detailed study of it, And gives some preliminary opinions on its cause.1 Geology of Deposits The Dashuigou-Te deposit is located in Shimian County, Sichuan Province, and is mainly exposed in the Daduhe ductile shear zone on the western margin of the Yangtze Platform. The surrounding rock series consists of metamorphic volcanic rocks. At present, 13 ore veins in the Dashuigou mining area have been initially identified as NNE-trending and obviously under the control of fractures. Phyllite-bismuth ore is the most important tellurium mineral, while the other tellurites are Chu-tellurite, telluride-bismuth ore, Mines and other associated sulfides mainly pyrrhotite, chalcopyrite and so on.