沂源县龙泉寒武纪石膏矿地质特征

Geological Characteristics of Cambrian Gypsum Deposit in Longquan of Yiyuan County

摘要:

沂源龙泉石膏矿是近几年山东省内勘查评价的几处寒武纪—奥陶纪海相碳酸盐岩系型石膏矿之一 ,这类矿床的发现及勘查评价 ,为省内石膏矿资源勘查与开发规划部署提供了新线索。沂源县龙泉石膏矿产于寒武纪长清群朱砂洞组丁家庄段 ,自下而上分 3个矿层 ,呈不规则的层状、似层状 ,以第Ⅰ矿层规模最大 ,最大厚度 13 98m。矿石自然类型以块状、网脉状—块状石膏为主 ,其次为网脉状—浸染状石膏、硬石膏和纤维状石膏。沂源龙泉石膏矿含矿层位及矿层分布比较稳定 ,矿床规模较大。

Abstract:

Longquan gypsum deposit in Yiyuan county is one of Cambrian-Ordovician marine facies carbonate type gypsum deposit which have been evaluated in recent few years. Found, exploration and evaluation of this kind of deposit provide new clue for gypsum resource exploration and future mining plan. Longquan gypsum deposit occurred in Dingjiazhuang section of Zhushadong formation in Cambrian Changqing group, which can be divided into 3 ore beds from lower to upper part with irregular strata and stratoid occurrence.Ⅰ ore bed has the largest scale with the depth as 13.98m. Mass, net vein-mass gypsum are its major types, also has some net vein disseminated gypsum, anhydrite and filament gypsum. Ore-bearing strata of Longquan gypsum deposit distributed stably, and has a large scale.