陇县店子上片麻状地质体本来面目的恢复及地质矿产意义

RESTORE TRUTH OF THE GNEISSOID GEOLOGICAL BODY IN DIANZISHANG REGION AND IT'S SIGNIFICANCE OF GEOLOGICAL AND MINERAL RESOURCES, LONGXIAN

在一比五万区调中依据岩貌、接触关系、产状、包体、组构、岩石化学和地球化学诸方面的资料，恢复并论述了店子上一带片麻状地质体的本来面目，证明其为片麻状闪长岩，并非变质表壳岩，确定了其在测区岩浆演化序列中的位置；并对岩浆侵位与成矿作用之间的关系进行了探讨。

In this paper, the truth of gneissoid geologic body in the Dianzishang region is restored on the basis of the rock appearance, contact relationship, occurrence, enclosure, fabric,petrochemistry and geochemistry, etc. It is proved that the gneissoid geological body is gneissoid diorite rather than metamorphic supracrustal rock, and the position of gneissoid diorite in magmatic evolutinal series is defined. In addition, the realationship between the magmatic emplacement and the ore-forming process is discussed.