山西中条山地区前寒武纪铜矿专题填图实践与思考
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摘要
中条山成矿带位于华北克拉通中部造山带南部,分布有著名的铜矿峪型、胡篦型、落家河型、横岭关型等不同成因类型的前寒武纪铜矿床。其中胡-篦型铜矿床主要产于中条群余元下组顶部-篦子沟组底、篦子沟组中部、篦子沟组顶部-余家山组底部。按照与成矿关系密切的蚀变、地层物质组成与构造调查并重的原则,开展1∶5万专题地质填图。地质图图面表达采用地层代码及岩性组成方法,客观地表达了与成矿关系密切的中条群余元下组、篦子沟组和余家上组地层组成与结构。提出了当前中条山前寒武纪铜矿专题地质填图的工作方法及填图单位划分与图面表达的方式,有益于探索中国现阶段成矿地质专题填图的方法。
The theory and method of thematic geological mapping for Precambrian copper Deposits in the Zhongtiao Mountain is a focus problem as to how to plan and implement geological mapping smoothly on the basis of basic geological mapping. On the basis of 1∶50000 thematic geological mapping, such problems as to genesis of mineral deposit, genetic relationships of different types of copper deposits and structural framework in Zhongtiao Mountain can be easily solved. The metallogenic belt of the Zhongtiao Mountain is located in the southern orogenic belt of the middle part of the North China craton, where there occur the famous Tongkuangyu type, Hu-Bi type, Luojiahe type and Henglingguan copper deposits, in which Hu-Bi type copper deposits are distributed atthe top of the Yuyuanxia Formation-the bottom of the Bizigou Formation, the center of the Bizigou Formation, and the top of the Bizigou Formation-the bottom of the Yujiashan Formation. According to the principle that the material composition and structure are closely associated with mineralization, the authors carried out 1∶50000 thematic geological mapping. The geological maps are expressed by means of stratigraphic code and lithologic composition, which can objectively express the formation lithology of Yuanyuanxai, Bizigou and Yujiashan formations and structure. The above practice included such means as outcrop observation, mapping unit classification, and graphic expression of map for 1∶50000 thematic geological mapping in Zhongtiao Mountain Precambrian copper deposits, and the results obtained provide implications for the present thematic geological mapping.
The theory and method of thematic geological mapping for Precambrian copper Deposits in the Zhongtiao Mountain is a focus problem as to how to plan and implement geological mapping smoothly on the basis of basic geological mapping. On the basis of 1∶50000 thematic geological mapping, such problems as to genesis of mineral deposit, genetic relationships of different types of copper deposits and structural framework in Zhongtiao Mountain can be easily solved. The metallogenic belt of the Zhongtiao Mountain is located in the southern orogenic belt of the middle part of the North China craton, where there occur the famous Tongkuangyu type, Hu-Bi type, Luojiahe type and Henglingguan copper deposits, in which Hu-Bi type copper deposits are distributed atthe top of the Yuyuanxia Formation-the bottom of the Bizigou Formation, the center of the Bizigou Formation, and the top of the Bizigou Formation-the bottom of the Yujiashan Formation. According to the principle that the material composition and structure are closely associated with mineralization, the authors carried out 1∶50000 thematic geological mapping. The geological maps are expressed by means of stratigraphic code and lithologic composition, which can objectively express the formation lithology of Yuanyuanxai, Bizigou and Yujiashan formations and structure. The above practice included such means as outcrop observation, mapping unit classification, and graphic expression of map for 1∶50000 thematic geological mapping in Zhongtiao Mountain Precambrian copper deposits, and the results obtained provide implications for the present thematic geological mapping.
引文
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[12]牛树文,张臣,刘超辉,等.中条山-吕梁山前寒武纪变质杂岩的独居石电子探针定年研究[J].地学前缘,2007,14(1):64-74.
[13]真允庆,束乾安.中条山铜矿流体碳、氧同位素示踪[J].地质调查与研究,2006,29(1):30-37.
[14]孙桂琴,霍卫民.山西省落家河铜矿地质特征及矿床成因浅析[J].化工矿产地质,2011,33(4):232-238.
[15]陈兆衡.中条山地区铜矿峪铜多金属矿床地质特征及成因[D].吉林大学硕士学位论文,2014:1-126.
[16]张晗.山西中条山北段古元古代铜矿成矿作用[D].吉林大学博士学位论文,2012:1-168.
[17]覃志安,薛克勤.中条山地区地质特征及铜矿床类型[J].地质调查与研究,2003,26(2):108-113.
(1)王世安,白瑾.山西中条山地区前寒武纪铜矿成矿条件及找矿预测.中国地质科学院天津地质矿产研究院,1995.
(2)陈平,张京军,贾秀明.山西省矿床成矿系列特征及主要成矿区带的形成规律与成矿远景.山西省地质科学研究院,2002.
[2]芮宗瑶,黄崇柯,齐国明,等.中国斑岩铜(钼)矿床[M].北京:地质出版社,1984:1-350.
[3]冀树楷,傅昭仁,李树屏.中条山铜矿成矿模式及勘查模式地质专报[M].北京:地质出版社,1992:1-115.
[4]孙大中,李惠民,林源贤,等.中条山前寒武纪年代学、年代构造格架和年代地壳结构模式的研究[J].地质学报,1991,64(3):216-231.
[5]孙海田,葛朝华,冀树楷.中条山地区前寒武纪地层同位素年龄及其意义[J].中国区域地质,1990,9(3):237-248.
[6]孙军刚,李洪英,刘晓煌,等.中条山铜矿峪铜矿蚀变及矿化特征研究[J].矿床地质,2014,33(6):53-69.
[7]孙军刚,李洪英,刘晓煌,等.中条山铜矿峪铜矿床绿泥石特征及其地质意义[J].岩石矿物学杂志,2015,34(6):1142-1154.
[8]胡维兴,孙大中.中条山早元古代铜矿成矿作用与演化[J].地质学报,1987,62(2):152-164.
[9]孙大中,胡维兴.中条山前寒武纪年代构造格架和年代地壳结构[M].北京:地质出版社,1993:26-64.
[10]Zhao G C,Wilde S A,Cawood P A,et al.Thermal evolution of Archean basement rocks from the eastern part of the North China Craton and its bearing on tectonic setting[J].International Geology Review,1998,40:706-721.
[11]Zhao G C,Cawood P A,Lu L Z,et al.Petrology andp-Thistory of the Wutai Amphibolites:implications for tectonic evolution of the Wutai Complex,China[J].Precambrian Reserve,2001,93:181-199.
[12]牛树文,张臣,刘超辉,等.中条山-吕梁山前寒武纪变质杂岩的独居石电子探针定年研究[J].地学前缘,2007,14(1):64-74.
[13]真允庆,束乾安.中条山铜矿流体碳、氧同位素示踪[J].地质调查与研究,2006,29(1):30-37.
[14]孙桂琴,霍卫民.山西省落家河铜矿地质特征及矿床成因浅析[J].化工矿产地质,2011,33(4):232-238.
[15]陈兆衡.中条山地区铜矿峪铜多金属矿床地质特征及成因[D].吉林大学硕士学位论文,2014:1-126.
[16]张晗.山西中条山北段古元古代铜矿成矿作用[D].吉林大学博士学位论文,2012:1-168.
[17]覃志安,薛克勤.中条山地区地质特征及铜矿床类型[J].地质调查与研究,2003,26(2):108-113.
(1)王世安,白瑾.山西中条山地区前寒武纪铜矿成矿条件及找矿预测.中国地质科学院天津地质矿产研究院,1995.
(2)陈平,张京军,贾秀明.山西省矿床成矿系列特征及主要成矿区带的形成规律与成矿远景.山西省地质科学研究院,2002.
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