薄杖子钾长石矿地质特征及开发应用前景

The Geological Characteristics and Development Application Prospect of the Bozhangzi Potassium Feldspar Deposit

通过对薄杖子钾长石矿地质特征分析,阐述了该矿床的成因类型,为中酸性侵入岩型。钾长石矿严格受沿断裂侵入的燕山期碱性正长岩小岩株控制,通过岩浆结晶分离作用而形成,区内矿体基本裸露于地表,地表出露体呈零星分布,矿体形态均不规则。矿体的主要矿物为钾长石,次要矿物为石英、条纹长石、绢云母、黑云母、角闪石,副矿物为黄铁矿、磁铁矿。矿石自然类型为碱性正长岩型,工业类型为玻璃及建筑陶瓷用钾长石矿,开发利用方向为玻璃及建筑陶瓷工业原料。

Based on the analysis of the geological characteristics of the Bozhangzi potassium feldspar deposit, the genetic type of the deposit is described, which was originated from medium-acid intrusive rocks. The potassium feldspar is strictly controlled by the Yanshanian small-scale stock of alkaline syenites. The potassium feldspars were formed from magma fractionation crystallization. The orebodies in the area are basically exposed to the surface, and scattered, with the irregular shapes. The main minerals are K-feldspar, the secondary minerals are quartz, striped feldspar, sericite, biotite, hornblende, and accessory minerals are pyrite and magnetite. The deposit’s geological type belongs to alkaline syenite type, and the K-feldspars are used as the glass and building raw materials in the industrial application.