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李家沟金矿位于摩天岭褶皱带东缘,秧田坝复式背斜南翼之次级向斜中.区内地层以震旦系为主,零星分布有泥盆系、石炭系及二迭系. 矿区地质概述1.地质金矿床赋存于中震旦统九道拐组(Z_2~2j)地层中,该层不整合于下震旦统接官亭组(Z_1~2J)之上.矿区地层岩性由老至新为: (1)接官亭组(Z_1~2j)下部是一套中基性火山喷发岩,由强钠化帘石化钠长绿帘岩、绿帘透闪岩、绿帘绿泥岩、透辉透闪岩等组成,枕状、
The Lijiagou gold deposit is located in the eastern margin of the Motianling fold belt and in the secondary syncline of the south wing of the Tiantianba compound anticline, which is mainly composed of Sinian and sporadic distributions of Devonian, Carboniferous and Permian Geological Overview 1. Geological gold deposits occur in the Middle Ancestor Jiuduaguai Formation (Z_2 ~ 2j) strata, this layer does not conform to the Lower Sinian Tongguan Pavilion (Z_1 ~ 2J) above. The stratigraphic lithology is from old to new: (1) The lower part of Zhaoguan Pavilion (Z_1 ~ 2j) is a set of middle-basic volcanic eruption rocks, which are composed of strong sodium natrolorphite sodium long green curtain, green curtain tremolite, Green curtain green mudstone, through the Hui-huang flash rock and other components, pillow-shaped,