李博士夼滑石矿矿床地质特征

该滑石矿产于上元古界粉子山群张格庄组白云石大理岩上段,矿带和矿体均受走向断裂控制。矿体规模大,变化稳定,矿石质量好,属大型矿床。

Geological characteristics of the Liboshikuang talc defosit in Shandong province

The Jiaodong (eastern Shandong) area is an important base area for production and export of talc in China, and the Liboshikuang deposit is a large talc deposit whose size is rarely seen in other parts of China. The ore deposit occurs in the upper dolomite marble member of Zhangge- zhuang Formation of Proterozoic Fenzishan Group. The slate and chlorite marble of Baoshankou Formation of upper Proterdzoic Penglai Group overlie unconformably Fenzlshan group and the ore deposit. The ore zone and the orebodies are strictly controlJjed by strike faults. The orebodies are generally 800-1500 m in length and averagely 3-7m in thickness with the thickest reaching 20.50 m. The ores consist mainly of white talc with talc minerals generally in excess of 80%, show no remarkable variation in chemical composition and have whiteness 80-95. Therefore, they are of good quality.