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滇西南部三迭纪含铜砂岩分布甚广。我队在1958年10月,在澜沧、西盟、孟連、勐遮、勐海、允景洪、思茅、普洱、景谷、镇源、临沧等12个县展开了大面积的地质普查工作,根据群众报矿及普查中检查的矿点,含铜砂岩约在250个以上,对含铜岩矿床的地质特征有了一些初步的认识,现介绍如下: 一、矿区地质 1.构造:本区位于渭公变质带与牢隆起之间,红色层成南北分布,哀牢山及无量山为古老的变质岩系,如云母长石石英片岩;眼球状绿泥石蛇纹石石
The Triassic copper-bearing sandstones in southwestern Yunnan are widely distributed. In October 1958, our team conducted a large-scale geological survey in 12 counties including Lancang, Ximeng, Menglian, Mengcha, Menghai, Yunjinghong, Simao, Pu’er, Jinggu, Zhenyuan and Lincang , According to the masses reported in the mine and census inspection of mineral deposits, copper sandstone is about 250 or more, the geological characteristics of copper-bearing rock deposits have some initial understanding, are as follows: First, mining geological 1. Structure: Ben The area is located between the Weinong metamorphic belt and the prison uplift. The red layer is distributed in the north and south. Ailao Mountain and Wuliangshan are ancient metamorphic rocks, such as mica feldspar quartz schist, eyeball chlorite serpentine