摘要
山西省垣曲县幅(I49E005015)1:50000地质图数据库是根据中国地质调查局地质调查工作和地质行业的统一标准及要求,在充分利用该区1:200000、1:250000等区域地质矿产调查成果资料的基础上,通过采用数字填图系统进行野外地质填图形成的。野外共采集岩石化学分析样品54件,同位素测年样品7件。通过本数据库的建立,对中条山地区"涑水杂岩"进行了解体,查明了该区变质基底的物质组成及构造轮廓;对古元古界进行了重新厘定划分,提出中条山地区古元古界新的划分方案;对中元古界熊耳群进行了"火山构造-岩性岩相-火山地层"三重填图及同位素测年,限定了该区中元古界的底界年龄;系统总结了该区变质岩建造特征;提出中条山地区古元古代3期构造叠加样式,对中条山核心铜矿区胡–篦型铜矿的成矿规律、构造控矿的研究有重要指导意义。
The 1:50000 geological map database of Yuanqu map-sheet(I49E005015),Shanxi Province was developed in accordance with the standards and requirements of geological surveys proposed by the China Geological Survey and the unified standards and requirements applicable to the geological industry,for which the achievements obtained from previous 1:200000 and 1:250000-scale regional geological surveys were fully utilized.Meanwhile,the Digital Geological Survey System(DGSS)was adopted for geological field mapping.A total of 54 samples for petrochemical analysis and seven samples for isotope dating were collected in the field.The following achievements were obtained by establishing the Database.The material composition of the metamorphic basement in Zhongtiao Mountain area and the tectonic framework of the area were ascertained by breaking up the Sushui complex in the area.The Paleoproterozoic boundary of Zhongtiao Mountain was redetermined and a new division scheme of the boundary was put forward.The volcanic structures,lithology and lithofacies,and volcanic strata of the Mesoproterozoic Xiong’er Group were mapped,and isotopic dating was conducted for the group.As a result,the age of Mesoproterozoic lower boundary of Zhongtiao Mountain was restricted.Furthermore,the characteristics of metamorphic rock formations were systematically summarized,and three stages of tectonic superimposition patterns of the Paleoproterozoic in Zhongtiao Mountain were proposed.All these will provide important guidance for the research on metallogenic rules and controlling structures of the Hu-Bi type copper deposits in the core Cu mining area in Zhongtiao Mountain.
作者
李建荣
孙华
刘伟东
侯冬红
赵建新
LI Jianrong;SUN Hua;LIU Weidong;HOU Donghong;ZHAO Jianxin(Shanxi Institute of Geological Survey,Taiyuan 030006,China;214 Geological Team of Shanxi Provincial Geological Prospecting Bureau,Yuncheng 044000,China)
出处
《中国地质》
CAS
CSCD
北大核心
2020年第S01期135-163,共29页
Geology in China
基金
中国地质调查局地质调查项目“山西1:5万绛县幅、垣曲县幅、同善镇幅区域地质矿产调查”(项目编号:DD20160043-01)资助
关键词
数据库
地质图
地质调查工程
1
垣曲县幅
山西省
database
geological map
geological survey engineering
1
Yuanqu map-sheet
Shanxi Province
作者简介
第一作者:李建荣,男,1968年生,高级工程师,从事区域地质矿产调查工作,E–mail:3250540181@qq.com;通讯作者:孙华,男,1985年生,工程师,从事区域地质矿产调查工作,E–mail:279996895@qq.com。
