广西宁明县膨润土矿床地质特征及找矿方向

The Geological Characteristics and Prospecting Direction of Bentonite Deposit in Ningming Country of Guang Xi Province

广西宁明县膨润土矿赋存于第三系邕宁群的泥岩中,系统地对成矿地质背景、矿区地质、矿床特征和矿石特征进行研究,把宁明县膨润土分为11层,并对各个矿层的矿物成分、膨润土的吸蓝量、膨胀容、胶质价和阳离子交换容量进行了系统地分析。结合矿床成因,对广西宁明县膨润土矿的控矿因素进行了简单的讨论,指出区内膨润土矿受地层、构造和岩浆岩的控制,矿床的形成与该区的岩浆活动和沉积作用有着密切的联系,并指出进一步找矿的方向。

Guangxi Ningming bentonite deposit is occurred in Tertiary mudstone Yongning groups. In this paper, the oreforming geological background, mine geology, and the characteristic of deposit have been studied systematically. The Ningrning bentonite is divided into 11 layers, and each ore bed of mineral composition, the amount of bentonite blue absorption, swelling capacity, and cation exchange capacity of resin prices are system-atically analyzed. Combined with ore genesis, ore-controlling factors in Ningming bentonite ore of Guangxi are discussed, pointing out that the bentonite mine is affected by stratigraphy, tectonic and magrnatic rocks. Deposit formation is closely related with the magmatism in the area and sedimentation, and the directions for prospecting are gived.