安徽庐枞盆地杀虎台铜矿床成矿流体特征研究
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摘要
安徽庐枞盆地是长江中下游成矿带重要的铁铜多金属矿集区,是研究与火山-次火山岩有关的多金属矿床的优良地区。脉状铜矿床作为盆地中矿床的主要类型,研究较为薄弱,制约了对该类型矿床成矿机理的深入认识。本文选择杀虎台脉状铜矿床,开展了矿床地质特征及流体包裹体的研究工作,明确其为与火山-次火山活动有关的中低温(170~260℃)中等盐度(11.0%~19.0%)热液充填型矿床,并对成矿作用过程进行了初步探讨。
As an important iron, copper polymetallic ore deposit cluster area in the mid-lower Yangtze reaches metallogenic belt, the Lu-Zong basin, Anhui is a superior area for study of polymetallic ore deposits related to volcanic-subvolcanic rocks. Vein-like copper ore deposits are major types of ore in the basin, study of which is insufficient, thus restricting further understanding of their formation mechanism. This paper chose the Shahutai vein-like copper ore deposit as a subject for study of ore deposit geological features and fluid inclusions. It was defined as a mid-low temperature(170~260℃)and medium salinity(11.0%~19.0%)hydrothermal filling deposit related to volcanic-subvolcanic activities, with its ore-forming process being discussed initially.
As an important iron, copper polymetallic ore deposit cluster area in the mid-lower Yangtze reaches metallogenic belt, the Lu-Zong basin, Anhui is a superior area for study of polymetallic ore deposits related to volcanic-subvolcanic rocks. Vein-like copper ore deposits are major types of ore in the basin, study of which is insufficient, thus restricting further understanding of their formation mechanism. This paper chose the Shahutai vein-like copper ore deposit as a subject for study of ore deposit geological features and fluid inclusions. It was defined as a mid-low temperature(170~260℃)and medium salinity(11.0%~19.0%)hydrothermal filling deposit related to volcanic-subvolcanic activities, with its ore-forming process being discussed initially.
引文
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[14]翟裕生,姚书振,林新多,周询若,万天丰.长江中下游地区铁铜(金)成矿规律[M].北京:地质出版社,1992.
[15]张乐骏,周涛发,范裕,袁峰,马良,钱兵.安徽庐枞盆地井边铜矿床的成矿时代及其找矿指示意义[J].岩石学报,2010,26(9):2729~2738.
[16]张乐骏.安徽庐枞盆地成岩成矿作用研究[D].合肥:合肥工业大学博士学位论文,2011:1~239.
[17]张舒,范裕,吴明安,等.安徽庐枞盆地泥河铁矿床成矿流体性质:来自He-Ar-H-O同位素的证据[J].岩石学报,2016,32(2):377~389.
[18]张舒,吴明安,汪晶,等.安徽庐枞盆地与正长岩有关的成矿作用[J].地质学报,2014a,88(4):519~531.
[19]张舒,吴明安,赵文广,等.安徽庐江泥河铁矿床矿床地球化学特征及其对成因的制约[J].岩石学报,2014b,30(5):1382~1396.
[20]张赞赞,吴明安,张舒,等.安徽庐枞盆地虎栈铜矿床成矿流体特征初探[C]//安徽省2014年青年地质学术讨论会论文集,2014:276~279.
[21]周涛发,范裕,袁峰,等.庐枞盆地侵入岩的时空格架及其对成矿的制约[J].岩石学报,2 0 1 0,26(9):2694~2714.
[22]左晓敏,杜杨松,曹毅,等.安徽桂花冲铜矿床成矿流体演化特征研究[J].矿床地质,2016,35(1):117~129.
(1)安徽省地质调查院.安徽庐枞地区构造、岩浆演化与成矿作用关系项目成果报告.2015.
[2]Pan Y M,Dong P.The Lower Changjiang(Yangzi/Yangtze River)metallogenic belt,east central China:intrusion-and wall rock-hosted CuFe-Au,Mo,Zn,Pb,Ag deposit[J].Ore Geology Review,1999,15:177~242.
[3]常印佛,刘湘培,吴言昌.长江中下游铜铁成矿带[M].北京:地质出版社,1991.
[4]段超.安徽庐枞盆地龙桥铁矿床地质地球化学特征和矿床成因研究[D].合肥:合肥工业大学博士学位论文,2009:25~34.
[5]黄清涛,尹恭沛.安徽庐江罗河铁矿[M].北京:地质出版社,1989.
[6]任启江,刘孝善,徐兆文.安徽庐枞中生代火山构造洼地及其成矿作用[M].北京:地质出版社,1991.
[7]任启江,杨荣勇,王实,徐兆文.安徽庐枞地区脉状铜(金)矿床成矿远景的地质预测[J].地质找矿论丛,1992,7(2):15~23.
[8]石磊,楼金伟,徐晓春.庐枞盆地中南部铜(金)矿床的流体地球化学特征[J].矿床地质,2010,29(增刊):601~602.
[9]石玉春,任启江,陈培荣,等.火山岩型金、铜矿体的放射性一场地质成因及其异常模式[J].中国科学(B辑),1995,25(11):1193~1200.
[10]覃永军,曾键年,王思远,陆建培,杨梅珍,陈津华.安徽庐枞盆地井边铜(金)矿床成矿特征及控矿地质因素探讨[J].矿床地质,2010,29(5):915~930.
[11]唐永成,吴言昌,储国正.安徽沿江地区铜金多金属矿床地质[M].北京:地质出版社,1998.
[12]吴明安,张千明,汪祥云,高昌生,尚世贵,王明华.安徽庐江龙桥铁矿[M].北京:地质出版社,1996.
[13]徐兆文,任启江,杨荣勇,王实.安徽庐枞地区脉状铜矿、铜金矿化分布规律和矿床模式[J].地质与勘探,1992,28(1):8~15.
[14]翟裕生,姚书振,林新多,周询若,万天丰.长江中下游地区铁铜(金)成矿规律[M].北京:地质出版社,1992.
[15]张乐骏,周涛发,范裕,袁峰,马良,钱兵.安徽庐枞盆地井边铜矿床的成矿时代及其找矿指示意义[J].岩石学报,2010,26(9):2729~2738.
[16]张乐骏.安徽庐枞盆地成岩成矿作用研究[D].合肥:合肥工业大学博士学位论文,2011:1~239.
[17]张舒,范裕,吴明安,等.安徽庐枞盆地泥河铁矿床成矿流体性质:来自He-Ar-H-O同位素的证据[J].岩石学报,2016,32(2):377~389.
[18]张舒,吴明安,汪晶,等.安徽庐枞盆地与正长岩有关的成矿作用[J].地质学报,2014a,88(4):519~531.
[19]张舒,吴明安,赵文广,等.安徽庐江泥河铁矿床矿床地球化学特征及其对成因的制约[J].岩石学报,2014b,30(5):1382~1396.
[20]张赞赞,吴明安,张舒,等.安徽庐枞盆地虎栈铜矿床成矿流体特征初探[C]//安徽省2014年青年地质学术讨论会论文集,2014:276~279.
[21]周涛发,范裕,袁峰,等.庐枞盆地侵入岩的时空格架及其对成矿的制约[J].岩石学报,2 0 1 0,26(9):2694~2714.
[22]左晓敏,杜杨松,曹毅,等.安徽桂花冲铜矿床成矿流体演化特征研究[J].矿床地质,2016,35(1):117~129.
(1)安徽省地质调查院.安徽庐枞地区构造、岩浆演化与成矿作用关系项目成果报告.2015.