학술논문
吉林省磐石市马鞍山石墨矿矿床地质特征及成因 / Geological features and genesis of Ma'anshan graphite deposit in Panshi City,Jilin Province
Document Type
Academic Journal
Source
吉林地质 / Jilin Geology. 42(4):27-31
Subject
Language
Chinese
ISSN
1001-2427
Abstract
通过对该区石墨矿矿床地质特征的分析,探讨了矿床成因.研究表明,三叠系上统大酱缸组地层为赋矿岩层,受燕山运动的影响,同时伴随岩浆及断裂活动,引起了岩层和煤层的变质,经过变质作用进而形成了石墨矿床.矿体形态多样,呈层状、似层状和透镜状等.石墨矿矿石自然类型为碳质板岩型,工业类型为隐晶质石墨矿.马鞍山石墨矿床成因类型为区域变质与接触变质叠加类型的矿床.
Based on the geological features of graphite deposits in this area,the genesis of the deposits is discussed.The research shows that the Upper Triassic Dajianggang Formation is a host rock stratum,affected by the Yanshan movement and the accompanied magma and fault activity.It caused metamorphism of rock layers and coal seams,which led to the for-mation of graphite deposits through metamorphism.The ore bodies are various in shapes,such as layered,layered-like and lenticular.The natural type of graphite ore is carbonaceous slate type,while the industrial type is cryptocrystalline graphite ore.The genetic type of the Ma'anshan graphite deposit is superimposed type of regional metamorphism and contact metamorphism.
Based on the geological features of graphite deposits in this area,the genesis of the deposits is discussed.The research shows that the Upper Triassic Dajianggang Formation is a host rock stratum,affected by the Yanshan movement and the accompanied magma and fault activity.It caused metamorphism of rock layers and coal seams,which led to the for-mation of graphite deposits through metamorphism.The ore bodies are various in shapes,such as layered,layered-like and lenticular.The natural type of graphite ore is carbonaceous slate type,while the industrial type is cryptocrystalline graphite ore.The genetic type of the Ma'anshan graphite deposit is superimposed type of regional metamorphism and contact metamorphism.