澳大利亚布罗肯希尔CUSIN溪矿区地质特征及找矿分析
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摘要
澳大利亚布罗肯希尔地区是世界上最主要的多金属成矿区之一,仅位于其市内的主铅锌矿体累计开采及探明储量矿石超过2.5亿吨。除此之外,域内还有其他超大型、大型铅锌银金铜多金属矿床、铁矿床、钴矿床、银铅矿床、钨矿床等,小型矿床(点)无数。区域主要出露含矿地层古元古界威利玛超群,是由一套连续的变质程度不同的且多期变形的沉积岩和火山岩形成。位于其内的CUSIN溪矿区成矿地质环境及条件与本区其他矿床基本类似,在勘查中对其矿床(点)地质特征认识分析,发现矿区有热泉型矿床特征,结合区域地质背景、物探及探矿成果,认为本区具有潜在找矿潜力。
Broken Hill is one of the most important polymetallic metallogenic areas in Australia of the world.The cumulative mining and proven reserves of the main Pb-Zn orebody in Broken Hill alone exceed 250 million tons.In addition,there are many super-large and large Pb-Zn(Ag、Au、Cu) polymetallic deposits,Fe deposits,Co deposits,Ag-Pb deposits,W deposits and numberous small deposits(spots) and so on in the area.The main ore-bearing strata in the metallogenic region are paleoproterozoic Willyama Supergroup.The ore-bearing strata are composed of a set of continuous sedimentary rocks and volcanic rocks which have different metamorphic degrees and undergo multi-stage tectonic deformation.Cusin River mining area is located in this area and its metallogenic geological environment and conditions are basically similar to those of other deposits in this area.From the analysis of the geological characteristics of the deposits(points) in this area,it is found that there are characteristics of hot spring type deposits in the mining area after the exploration works.Combining with the geological background,geophysical prospecting and geological engineering work in this area,it is considered that it has certain prospecting potential in the area.
Broken Hill is one of the most important polymetallic metallogenic areas in Australia of the world.The cumulative mining and proven reserves of the main Pb-Zn orebody in Broken Hill alone exceed 250 million tons.In addition,there are many super-large and large Pb-Zn(Ag、Au、Cu) polymetallic deposits,Fe deposits,Co deposits,Ag-Pb deposits,W deposits and numberous small deposits(spots) and so on in the area.The main ore-bearing strata in the metallogenic region are paleoproterozoic Willyama Supergroup.The ore-bearing strata are composed of a set of continuous sedimentary rocks and volcanic rocks which have different metamorphic degrees and undergo multi-stage tectonic deformation.Cusin River mining area is located in this area and its metallogenic geological environment and conditions are basically similar to those of other deposits in this area.From the analysis of the geological characteristics of the deposits(points) in this area,it is found that there are characteristics of hot spring type deposits in the mining area after the exploration works.Combining with the geological background,geophysical prospecting and geological engineering work in this area,it is considered that it has certain prospecting potential in the area.
引文
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张英梅,孟祥伟,陈昆明.2016.激电中梯和激电测深在车辋铜铅多金属矿中的应用[J].山东国土资源,32(4):56-59.
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I R Plimer.1987.布罗肯希尔Pb-Zn-Ag矿床─地幔交代作用的产物[J].张光耀译.地质地球化学,(6).1-4.
J V Wright.1992.澳大利亚布罗肯希尔超大型Pb-Zn矿床沉积模式[J].宋忠孝译.地质地球化学,(3).107-112.
戴雪灵,李先灿,涂生法,等.2015.澳大利亚北领地温盖特(Wingates)金矿床地质特征及找矿潜力[J].地质与勘探,51(1):196-202.
杨志忠,姜伟,王笑聪,等.2011~2014.澳大利亚新南威尔士州BRO-KEN HILL地区EL7473矿权靶区优选与评价成果报告[R].贵阳:贵州省有色金属和核工业地质勘查局地质矿产勘查院.
姚锦其,曾晖,张学良,黄学强,等.2015.刚果(金)加丹加省某铜矿区物探方法试验及找矿效果[J].矿产与地质,29(5):654-658.
张英梅,孟祥伟,陈昆明.2016.激电中梯和激电测深在车辋铜铅多金属矿中的应用[J].山东国土资源,32(4):56-59.
卓维荣.1990.热泉型金矿床地质特征和成矿模式[J].国外铀金地质,(2):16-21.
卓维荣.1991.热泉型金矿床成矿地质环境及其在我国的找矿前景[J].地质与勘探,27(2):16-19.