摘要
该石墨矿床位于兴蒙古生代造山带佳木斯地块,双鸭山—麻山隆起、麻山隆起内.矿床赋存于中—新元古界麻山岩群西麻山岩组中,含石墨岩系具孔兹岩系特征.矿体呈层状、透镜状连续分布于向斜构造内;矿体分布集中,厚度大,平均品位高,厚度及矿石质量变化均较稳定;矿体与围岩地球物理特征差异明显,具明显负自然电位特征.矿石自然类型为含石墨石英片岩;矿石具有良好的可选性,正目石墨含量高,矿物回收率高,尾矿易处理.建造类型、成矿时代、控矿条件和成矿作用为该石墨矿床的必要成矿要素,矿物组合和矿体形态等作为重要的成矿要素.
Abstract
The graphite deposit is located in the Xingmeng Mesozoic orogenic belt,Jiamusi block,Shuangyashan Mashan uplift,and within the Mashan uplift.The deposit occurs in the West Mashan Formation of the Meso Neoproterozoic Mashan Rock Group,and the graphite bearing rock series has the characteristics of the Khondalite series.The ore body is distributed continuously in a layered and lens like manner within the syncline structure;The distribution of ore bodies is concentrated,with large thickness,high average grade,and stable changes in thickness and ore quality;There is a significant difference in the geophysical characteristics between the ore body and the surrounding rock,with obvious negative natural potential characteristics.The natural type of ore is graphite bearing quartz schist;The ore has good selectivity,high content of positive graphite,high mineral recovery rate,and easy tailings treatment.The construction type,mineralization era,ore controlling conditions,and mineralization process are necessary ore-forming elements for the graphite deposit,while mineral combinations and ore body morphology are important ore-forming elements.
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