云南宁蒗县白牛厂矿区重力场特征及找矿意义  

THE GRAVITY FIELD FEATURE AND PROSPECTING SIGNIFIOCANCE OF BAINIUCHANG OREFIELD IN NINGLANG,YUNNAN

作　　者：黄元有 代达龙 白曜宇 HUANG Yuan-you;DAI Da-long;BAI Yao-yu(Yunnan Institute of Geological Survey,Kunming 652106;2,Yunnan Fusheng Xingxing Compeny of Investment(Ltd),Kunming 650021)

机构地区：[1]云南省地质调查院,云南昆明652106 [2]云南富盛锌鑫投资股份有限公司,云南昆明650021

出　　处：《云南地质》2020年第2期277-283,共7页Yunnan Geology

摘　　要：通过重力测量在白牛厂背斜核部阳新组碳酸盐岩老地层上圈定了形态规整的北北东向长条状曹湾-余家村重力低异常区。根据密度界面反演结果,推测深部300m左右有隐伏中酸性侵入岩体,并在岩体凹陷部位圈定了3处易成矿的有利地段,因此矿区重力异常特征显示深部对寻找矽卡岩型矿床有利。According to the gravity Survey,we have outlined Caowan-Yujiacun long banded gravity low anomaly on Yangxin Formation carbonate rock of Bainiuchang anticline core.By the inversion result of density boundary,we have inferred there is a buried intermediate-acid intrusion body in the deep about 300m.And 3 advantageous metallogenesis sites have been outlined ai the depression place of rock body.Therefore,the gravity anomaly feature shows the deep part is advantageous to prospecting of the skarn deposit.

关 键 词：重力异常 隐伏岩体 成矿有利 云南宁蒗白牛厂 

分 类 号：P631.1[天文地球—地质矿产勘探]