江西崇义老庵里破碎带蚀变岩型锡钨多金属矿床地质特征

江西崇义老庵里锡多金属矿床产于南岭成矿带赣南段天门山岩体西缘外接触带,矿化地质体受破碎带与灰岩层控制,沿破碎带发育矽卡岩化、绿泥石化、碳酸盐化和与之相伴的锡石—硫化物—白钨矿化,矿与矿化界线靠样品圈定,矿体呈似层状、扁透镜状,金属矿物主要是锡石、黄锡矿、方铅矿、闪锌矿、锡黝铜矿及白钨矿,往深部白钨矿增多.矿床成因应属与...

Characteristics of the Laoanli tin and tungsten polymetallic ore deposit of crush zone altered rock type, Chongyi, Jiangxi

The Laoanli tin polymetallic ore deposit in Chongyi, Jiangxi province occurs on the out contact zone of the western fringe of the Tianmenshan rock mass in Gannan （western Jiangxi） section of Nanling metallo- genic belt, the mineralized geological bodies are controlled by crush zones and limestone layers, with skarnization, choritization, carbonation and associated cassiterite-sulfide-scheelite mineralization developed along crush zone. The boundary of economic ores and mineralization was delineated by samples and the ores occurs as stratiform and flat lentiform bodies with cassiterite, stannite, galena, sphalerite, colusite and scheelite which increases towards depth, as major metallic minerals. The genesis of the ore deposit should be middle to lower temperature hydrothermal fluid filling and metasomatic crush zone altered rock type deposit associated with structure-granitic magma movement in early Yanshan period.