格陵兰东部Jameson Land盆地铜多金属矿床地质特征与成因

Geological features and genesis of the copper-polymetallic deposit in the Jameson Land basin of East Greenland

研究区位于格陵兰东部成矿带Jameson Land盆地,盆地内已发现铜、铅、锌等多种矿产资源。对研究区矿床地质特征研究表明,铜、铅、锌等金属地表矿化特征明显、矿化强度大、分布范围广、矿化层位厚度大,具多赋矿层位、多矿化类型的特点,且矿化主要受上二叠统Foldvik Creek组(FC组)灰岩和下三叠统Pingo Dal组(PD组)砂砾岩控制,具备形成大型甚至超大型Cu-Pb-Zn矿床的条件,找矿潜力巨大。在详细研究矿体地质特征、矿石特征的基础上,对矿床成因进行了讨论,为研究区找矿提供了理论依据和思路。

This study focused on the Jameson Land basin of the East Greenland,where a variety of copper,lead and zinc mineral resources were discovered. This area possesses significant surface mineralization of copper,lead and zinc,and has strong mineralization intensity,with a wide mineralization area. The mineralized horizons have a great thickness,and various ore- hosted horizons and mineralization types can be observed. The mineralization shows a critical control by the upper Permian Foldvik Creek Fm.（ FC） limestone and the lower Triassic Pingo Dal Fm.（ PD） glutenite,and tends to form large or even superlarge Cu- Pb- Zn deposits,indicative of a great prospecting potential. Based on the orebody and ore features,this study also discussed the genesis of the deposit in an effort to provide theoretical evidence or idea for the next prospecting in this area.