摘要
内蒙古额济纳旗境内发现的呼伦西白金矿,矿脉产状陡、延深较大。多数矿脉产于华力西期斜长花岗斑岩体内部或岩体与上泥盆统西屏山组地层的内接触带中,个别矿脉产于斑岩上覆的西屏山组安山质板岩中的构造破碎带内(下部隐伏华力西期斜长花岗斑岩)。研究认为,矿体赋存在与华力西期花岗斑岩体隐爆作用有关的不同隐爆构造部位,属于与华力西期岩浆隐爆角砾岩型金矿床,具中低品位和厚度较大等特点,其找矿前景良好。
Hulunxibai gold deposit was found in Ejinaqi, Inner Mongol In recent years. Most ore lodes, with deep mode of occurrence and long extension, are located in the the Hercynian graniteporphyry body or its interconnected zone with the Upper Devonian Series Xipingshan Group stratum. Very few of them appear in the structural fracture zones of the andesitic slate in Upper Devonian Series Xipingshan Group on the Hercynian graniteporphyry body. The authors suggest that the ores store in the different cryptoexplosion structures which are relevant with the Hercynian graniteporphyry body,and belong to Invading-Crypto-breccia-rock Type.
出处
《地质调查与研究》
2006年第2期100-106,共7页
Geological Survey and Research
基金
内蒙古自治区专项资金2004年首批地质矿产勘查项目"内蒙古自治区额济纳旗呼伦西白金矿普查"(内国土资字[2004]905号)
关键词
呼伦西白金矿
华力西期
斜长花岗斑岩
隐爆构造部位
隐爆侵入角砾岩墙型
Hulunxibai gold deposit
Hercynian graniteporphyry
different crytoexplosing structure
Invading-Crypto-breccia-wall Type
