东昆仑洪水河-清水河沉积变质型铁锰矿床地质特征及找矿标志  

Geological characteristics and prospecting criteria of the flood river Qingshui River sedimentary metamorphic iron manganese deposit in eastern Kunlun

作　　者：郭桂兰 GUO Gui-lan(Qinghai Third Institute of Geology and mineral resources exploration,Xining 810000,China)

机构地区：[1]青海省第三地质矿产勘查院,青海西宁810000

出　　处：《世界有色金属》2018年第16期267-268,共2页World Nonferrous Metals

摘　　要：洪水河铁锰矿在大地构造位置上属秦祁昆造山系-东昆仑弧盆系-北昆仑岩浆弧,柴达木地块分布在其北侧区域上,此次寻找铁矿的研究工作中,采用物探测量为主要方法。蓟县系狼牙山组(蓟县系)是该矿的主要产出部位,灰-灰黑色变质砂岩是锰矿的主要赋存部位,是寻找此类矿床的间接标志。文章通过磁铁矿和锰矿在空间分布上的相关性分析,建立了地质、物探找矿标志。The Honghonghe Fe-Mn deposit belongs to Qinqikunlun orogenic-East Kunlun arc-North Kunlun magmatic arc in the tectonic position, and the Qaidam block is distributed in the northern part of the area. The Langyashan Formation （Jixian Formation） of Jixian System is the main occurrence site of the deposit, and the gray-gray-black metamorphic sandstone is the main occurrence site of the manganese deposit, which is an indirect indicator for prospecting such deposits. Based on the correlation analysis of the spatial distribution of magnetite and manganese ore, the geological and geophysical prospecting indicators are established.

关 键 词：东昆仑 变质型 铁锰矿床 找矿标志 

分 类 号：P618.3[天文地球—矿床学]