摘要
靠近勉略蛇绿构造混杂岩带北侧的迷坝岩体形成于秦岭微板块与扬子板块碰撞后的陆缘造山带构造环境,长期以来找矿前景不明。通过1∶5万矿产远景调查,对迷坝岩体含矿性取得重要认识,迷坝岩体2期侵位特征明显,后期侵入体是成矿地质体,有形成斑岩型白钨矿成矿条件;岩体接触带蚀变范围广,是寻找热液充填、交代型钨铜钴矿的有利部位。本区有很好的找矿潜力。
The MIBA rock mass near the northern side of the Mianlue ophiolitic mélange belt was formed after the collision of the Qin Mountains microplate with the Yangtze plate in the tectonic environment of the continental margin orogenic belt.The prospecting in this area has long been uncertain.Through 1∶50,000 mineral prospective investigation,the ore-bearing property of Miba rock body has been recognized.The two-stage emplacement features of the Miba rock body are obvious.The later intrusive body is the ore-forming geological body and has the ore-forming condition of porphyry scheelite.The contact zone of rock mass has a wide range of alteration,which is a favorable place of searching hydrothermal filling and metasomatic w-cu-co deposit.This area has good prospecting potential.
作者
张勇
龙登红
程鹤
ZHANG Yong;LONG Denghong;CHENG He(Gansu Provincial Geological and Mineral Exploration and Development Bureau First Geological and Mineral Exploration Institute,Tianshui 741020,Gansu,China)
出处
《西北地质》
CAS
CSCD
北大核心
2020年第1期66-75,共10页
Northwestern Geology
基金
中国地质调查局“甘肃省迷坝—南康一带铜铁多金属矿远景调查”(1212011085106)。
关键词
迷坝岩体
钨铜钴矿
含矿性
找矿潜力
南秦岭
Miba rock mass
Tungsten copper cobalt ore
ore potentiality
ore prospecting
South Qinling
