摘要
七宝山金铜矿位于胶莱盆地西南缘的七宝山地区,在金铜矿外围新发现长老庄含矿隐爆角砾岩带一条,物探解译工作初步查明了该隐爆角砾岩带地质及地球物理特征:位于激电中梯高阻和低阻接触带上,深部呈低阻、中高激化异常。经钻探验证,在深部发现高品位的银铜铅矿体,矿石中粗粒方铅矿、黄铜矿结晶体肉眼可见,呈团块状富集,铜品位0.493%~5.125%,铅品位0.245%~6.606%,银品位55.2~547.1g/t。表明在金铜矿外围及深部仍具有寻找隐爆角砾岩型高品位银铜铅矿体的潜力。
Qibaoshan gold copper depsot is located in Qibaoshan area in the southwest edge of Jiaolai basin.Changlaozhuang ore-bearing cryptoexplosive breccia belt has been newly discovered in the surrounding areas of the gold copper deposit.The geophysical interpretation work has preliminarily identified geological and geophysical characteristics of the cryptoexplosive breccia belt.It is located in the high resistance and low resistance contact zone of IP ladder,and the deep part presents low resistance and medium-high intensity anomaly.Through drilling verification,high grade silver copper lead ore bodies have been found in the deep.The coarse galena and chalcopyrite crystals in the ores are visible to the eye and are concentrated in lumps.The copper grade is 0.493%~5.125%,the lead grade is 0.245%~6.606%,and the silver grade is 55.2~547.1g/t.It is showed that there is still potential to search for high grade Ag,Cu and Pb ore bodies of cryptoexplosive breccia type in the surrounding areas and deep of gold and copper deposits.
作者
李双飞
陈建
黄鹂
朱伟
商祥鸿
高远
唐名鹰
管翔
邹占春
华磊
LI Shuangfei;CHEN Jian;HUANG Li;ZHU Wei;SHANG Xianghong;GAO Yuan;TANG Mingying;GUAN Xiang;ZOU Zhanchun;HUA Lei(No.8 Exploration Institute of Geology and Mineral Resources,Key Laboratory of Nonferrous Metal Ore Exploration and Resource Evaluation of Shandong Provincial Bureau of Geology and Mineral Resources,Shandong Rizhao 276826,China)
出处
《山东国土资源》
2023年第3期23-29,共7页
Shandong Land and Resources
基金
山东省自然资源厅“山东省五莲县长老庄地区铜铅锌多金属矿成矿远景调查”(鲁勘字[2020]30号)
“山东省自然资源厅鲁东中生代盆地边缘地区有色金属矿床成矿系列及找矿方向研究”(鲁勘字[2020]18号)
“五莲七宝山地区中生代岩浆演化与多金属成矿作用”(项目编号:KY202213)。
关键词
银铜铅矿
隐爆角砾岩
矿化特征
五莲七宝山
山东
Silver copper lead deposit
cryptoexplosive breccia
mineralization characteristics
Qibaoshan in Wulian county
Shandong province
