贵州省泥堡金矿床控矿构造类型及其控矿规律  

Ore-control Structure Type and Its Regulation of Nibao Gold Deposit in Guizhou

作　　者：祁连素 何彦南 祁杰[1] 李俊海[1] 潘政达[1] 张应国[1] 

机构地区：[1]贵州省地质矿产勘查开发局105地质大队,贵州贵阳550018

出　　处：《贵州地质》2014年第1期1-9,共9页Guizhou Geology

基　　金：中国地质调查局计划项目"西南地区重点成矿带铜铁金多金属找矿模型与勘查方法技术研究"子课题<贵州贞丰整装勘查区金-铀多金属控矿因素研究>[科(2013)01-055-002]资助

摘　　要：以泥堡金矿床近年深部勘探资料为主要依据,通过对其控矿构造类型及其控矿作用的分析,对构造逐级控矿规律和构造界面控矿规律的研究,认为泥堡背斜是矿区内最主要控矿构造,其形成发育了主要控矿断裂(F1等)及次级控矿背斜(二龙抢宝背斜);逆冲断裂F1是最重要的容矿构造及导矿构造;主要控矿构造界面为龙潭组与茅口组的界面,它既是岩性组合界面(Si/Ca界面),又是不整合界面、火山-沉积界面;次要控矿构造界面有三个,均位于龙潭组内部,主要属于Si/Ca界面;控制矿床的背斜构造中之逆冲断裂-次级背斜构造组合,以及龙潭组与茅口组的控矿构造界面,是将来金矿勘查的主攻目标。According to the deep exploration information of Nibao gold deposit in recent years, by analysis the ore-controlling structure type and constrains, the structural-level-control regulation and structural bound- ary control regulation are studied. It＇ s thought that Nibao anticline is the main ore-controlling structure in the mining area, for its formation, the main ore-controlling fracture （F1） and secondary ore- controlling anticline （ Erlongqianghao anticline） developed. The trust fracture （F1） is the most important structure of ore-bearing and ore-passing. The ore-control boundaries are Longtan formation and Maokou formation. It＇ s either lithology association boundary or unconformity boundary and volcanic sedimentary boundary. There are 3 secondary ore- controlling structural boundaries and all of them are Si/Ca boundary and situated in Longtan formation. The trust fracture-secondary anticline association in anticline structure of ore- controlling deposit and ore- control- ling structural boundary are the primary target in future gold exploration.

关 键 词：金矿 控矿构造 找矿方向 泥堡金矿床 贵州 

分 类 号：P618.51[天文地球—矿床学]