阿尔金山东段敖包山地区晶质石墨矿特征及成矿潜力分析  

CHARACTERISTICS AND METALLOGENIC POTENTIALITY ANALYSIS OF CRYSTALLINE GRAPHITE DEPOSITS AT AOBAOSHAN AREA IN EASTERN SECTION OF ALTUN TAGH MOUNTAIN

作　　者：贾鑫 余君鹏[2] 樊新祥 赵恩厚 陈世强 郑亮英 王小强 JIA Xin;YU Jun-peng;FAN Xin-xiang;ZHAO En-hou;CHEN Shi-qiang;ZHENG Liang-ying;WANG Xiao-qiang(The Fourth Institute of Geology and Mineral Exploration,Gojisu Provincial Bureau of Geology arid Mineral Exploration and Development,Jiuquan 734000,China;Geological Survey of Gansu Province,Lanzhou 730000,China)

机构地区：[1]甘肃省地矿局第四地勘院,甘肃酒泉734000 [2]甘肃省地质调查院,甘肃兰州730000

出　　处：《甘肃地质》2020年第3期61-66,共6页Gansu Geology

摘　　要：敖包山地区大地构造位置为塔里木板块与柴达木—祁连板块的交汇部位,出露地层以下元古界敦煌岩群为主。晶质石墨矿赋存于该地层中。本文通过对在该地区勘查成果资料的研究及野外实地工作的基础上,从层位赋存规律、构造控矿规律、沉积环境等方面总结了晶质石墨矿的分布规律;对区内大敖包沟、敖包山、白台沟东、红柳峡4个主要矿床特征进行了阐述对比,认为敖包山矿集区赋存地层为典型的"孔兹岩系",矿集区成矿潜力大,晶质石墨远景资源量有望达2 000万吨以上。Aobao mountain in northern Gansu Province is located in east Altun Tagh mountain. The prospecting of crystalline graphite deposit has been obtained better achievements in this area. This paper summarized the regional geological tectonic characteristics of ore-centralization area in Aobao mountain, based on the relevant research data and the field investigation. Considered with geotectonic view, Aobao mountain area,mainly exposed lower Palaeozoic Dunhuang group strata, is the convergence position of Tarim Plate and QaidamQilian Plate. And the crystalline graphite deposit occurs in it. It’s distribution described by occurrence regularity,tectonic ore control regularity and sedimentary environments. Furthermore, this study shows a brief introduction of deposit characteristics about Daaobaogou, Aobao mountain, Baitaigou and Hongliuxia. The research results suggest that strata exposed in Aobao ore-centralization area is typical "khondalite series" by compare and analysis. The area shows powerful potentiality of mineralization and prospective resource volume of crystalline graphite is expected to top 20 million tons, which is of great significance to local economic development.

关 键 词：晶质石墨矿 地质特征 敖包山 阿尔金山东段 甘肃 

分 类 号：P619.252[天文地球—矿床学]