格陵兰西南费斯肯纳色特地区铜-镍-PGE矿勘查进展  

Exploration Progress of Copper-Nickel-PGE Deposit in Fiskenaesset Area,Southwest Greenland

作　　者：李振清[1] 赵元艺[1] 聂风军[1] 刘春涌 张柏松[3] 李九玲[1] 

机构地区：[1]中国地质科学院矿产资源研究所国土资源部成矿作用与资源评价重点实验室,北京100037 [2]北京勘探科技有限公司,北京100029 [3]中国地质大学地球科学与资源学院,北京100083

出　　处：《地质科技情报》2013年第5期26-32,共7页Geological Science and Technology Information

基　　金：中国地质调查局项目"全球巨型成矿带区域构造与成矿地质背景对比研究"(1212011120326);中央地勘基金项目([2011]D3-09)

摘　　要：费斯肯纳色特地区位于格陵兰西南沿海地带,主要地层为太古宙变质片麻岩,辉长-斜长基性岩体呈岩枝状侵入,其来源可能为遭受地壳混染的亏损地幔。该地区以产红宝石知名,Cu-Ni-PGE矿化是在红宝石的勘探过程中在基性-超基性岩体中发现的。PGE（Pt＋Pd）的品位多在0.5-2g/t之间,局部可达2.52-6.7g/t,具有中型以上规模的资源前景。主要矿物组合为：黄铜矿、黄铁矿、铬铁矿、磁铁矿、钛铁矿、磁黄铁矿、辉钼矿等。该地区的阿帕鲁套克和辛纳苏克矿区具有Cu-Ni-V的地球化学异常,并具有明显的磁异常。在寻找Cu-Ni-PGE矿床中,地球化学异常和磁法可能是有效的手段。Fiskenaesset area is located in the Archean marginal zone in southwest coast of Greenland. The main rock types are Archaean meta-granitic gneiss intruded by the Fiskenaesset gabbro-anorthite complex rock branches, which might originate from depleted mantle suffered crustal contamination. Ruby and cop- per-nickel-PGE deposits, occurring in the basic-ultrabasic complex, are the main mineral resources in the area. The resource prospect of PGE is above medium scale with the grade of 0.5--2 g/t, locally can even approach 2.52--6.7 g/t. The main mineral assemble includes chalcopyrite, pyrite, chromite, magnetite, ilmenite, pyrrhotite, and molybdenite. The Cu-Ni-V geochemical anomaly and magnetic anomaly are very distinct in the Aappaluttoq and Sinasuk deposits area. It suggests that geochemical and magnetic anomaly are effective means in looking for similar deposits.

关 键 词：格陵兰 费斯肯纳色特 铜-镍-PGE矿床 红宝石 

分 类 号：P618.2[天文地球—矿床学]