河南汝阳东沟超大型钼矿床地质特征及找矿标志  

GEOLOGICAL CHARACTERS AND PROSPECTING INDICATION OF DONGGOU MO DEPOSIT IN THE RUGANG AREA,HENAN

作　　者：马红义[1] 吕伟庆[1] 张云政[1] 黎红莉[1] 田修启[1] 马雁飞[1] 

机构地区：[1]河南省地质调查院

出　　处：《地质与勘探》2007年第4期1-7,共7页Geology and Exploration

基　　金：金堆城钼业汝阳有限责任公司项目资助

摘　　要：东沟钼矿属斑岩型钼矿床,矿床(体)赋存于下铺花岗斑岩体内外接触带中,沿岩体呈似层状(帽状)分布,钼矿化与岩石中裂隙发育程度关系密切,矿厚一般130～170m,最大259.62m。主要矿石类型有安山岩型、英安岩型、闪长细晶岩型和花岗斑岩型辉钼矿矿石,矿化蚀变具典型斑岩型矿床的特征,地球化学异常和花岗斑岩体是主要找矿标志。Donggou Mo deposit belongs to porphyry type molybdenum deposit. The ore bodies lie in the inner and outer contacting zones of Xiapu granitic porphyry, and are distributed as stratoid or hat - like along with the rock body. Mo mineralization is closely related to the developing degree of fissure. The ore bodies are generally 130 - 170m thick with maximum 259.62m. The main ores include andesite, dacite, dioritic aplite and granitic porphy- ry types. Alteration and mineralization possess typical characters of porphyry type deposit. Geochemical anomaly and granitic porphyry are the principle prospecting indications.

关 键 词：斑岩型钼矿 地质特征 找矿标志 汝阳东沟 河南省 

分 类 号：P618.65[天文地球—矿床学]