佳木斯地块东段典型石墨矿床地质特征及成因机制研究  

A Research on Geological Characteristics and Origin Mechanism of Typical Graphite Deposits in Eastern Section of Jiamusi Plot

作　　者：储照波 朱随洲 徐建[2] 许永兴 李令斌 CHU Zhaobo;ZHU Suizhou;XU Jian;XU Yongxing;LI Lingbin(Shandong Zhengyuan Geological Resources Exploration Co., Ltd., Jinan, Shandong 250101, China;Shandong Zhengyuan Geological Exploration Institute of Metallurgical Geology General Administration of China, Jinan, Shandong 250101, China)

机构地区：[1]山东正元地质资源勘查有限责任公司,山东济南250101 [2]中国冶金地质总局山东正元地质勘查院,山东济南250101

出　　处：《中国锰业》2022年第3期68-75,80,共9页China Manganese Industry

基　　金：黑龙江省财政地质勘查项目([2017]-209号)。

摘　　要：通过对佳木斯地块东段典型的麻山石墨矿研究,发现佳木斯地块东段石墨矿呈层状、似层状或脉状产出于新太古界麻山岩群余庆岩组石墨石英片岩和石墨黑云石英片岩中;矿体的产出严格受地层控制,矿石类型主要为片岩型晶质石墨矿石,石墨呈鳞片状定向分布于岩石中,矿石品位变化较稳定,为典型的沉积变质型石墨矿;矿体风化带较深,泥化带和强风化带石墨矿体为良好的加工、解离和开采的有利地段;中压高温区域动力热变质的片岩类和变质的石英岩类与甚低频电磁法和高视电导率为良好的找矿标志。Based on the study of the typical Mashan graphite ore in the eastern part of Jiamusi block,it is concluded that the graphite ore in the eastern part of Jiamusi block occurs in the graphite quartz schist and graphite biotite quartz schist of Yuqingyan Formation of new Archean Mashan Group in the form of stratiform,quasi stratiform or vein.The output of the ore body is strictly controlled by the stratum.The ore type is mainly schist crystalline graphite ore.The graphite is distributed in the rock in a flake orientation,and the ore grade changes stably.It is a typical sedimentary metamorphic graphite ore.The weathering zone of the ore body is deep,and the graphite ore body in the argillization zone and strong weathering zone is a favorable section for good processing,dissociation and mining.We think that the dynamic thermal metamorphosed schists and metamorphic quartzites in medium pressure,including high temperature areas,very low frequency electromagnetic method and high apparent conductivity are all good prospecting indicators.

关 键 词：地质特征 沉积变质型石墨矿 麻山岩群余庆岩组 佳木斯 

分 类 号：P619.252[天文地球—矿床学]