贵州镇远苍蒲塘钾镁煌斑岩管发现及找矿意义

Discovery of Lamproite Tube and Its Prospecting Significance in Cangputang of Zhenyuan,Guizhou

贵州镇远马坪地区钾镁煌斑岩体规模较小,以呈岩墙式岩脉、岩床式岩脉、网状岩脉侵入于寒武系石冷水组、娄山关组白云岩中。最近在马坪地区苍蒲塘地表发现钾镁煌斑岩管,进一步揭示了岩体产出形态、规模和岩体特征,证实了该区岩管的客观存在,否定了原有资料认为马坪地区岩体"根部相"的认识,该区存在隐伏钾镁煌斑岩管或岩墙的地质依据充分,因而对镇远马坪地区金刚石找矿具有重大意义。

In the Maping area of Zhenyuan, the scale of lamproite is small,it intruded into the dolomite of Shilengshui formation and Loushanguan formation of Cambrian as dike vein, bedrock vein and net vein. Recently, the lamproite tube was found in Cangputang of Maping area, it revealed the form, scale and features of the rock,it approved the existence of the tube and negated the acknowledgement that it＇ s thought the rock in Maping area is root facies in the former information, the geologic accordance of lamproite tube or bed- rock existed in this area is sufficient, so it has big significance for diamond exploration in Maping area.