安徽霍邱李老庄铁矿—菱镁矿床地质特征及成因类型
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摘要
霍邱铁矿田位于华北地台南缘,处于北淮阳山字型构造脊柱部位。李老庄铁矿—菱镁矿床置于霍邱铁矿田中部。该矿床主要产于上太古界霍邱群变质岩系中,矿体赋存于富镁碳酸盐中,矿石类型可以分为菱镁矿磁铁矿石和蛇纹石磁铁矿石,各占25%。成矿物质来源于这些变质岩系的多层、分散的含铁建造矿源层中。依据矿床地质特征,结合矿石同位素地质和测年结果,李老庄铁矿—菱镁矿铁矿床是晚太古代海相火山—沉积变质型矿床。
Huoqiu iron ore field,Anhui Province,is located in the south margin of North China platform,which is situated at the backbone of the epsilon-type structure of Beihuaiyang tectonic belt.Lilaozhuang iron-magnesite deposit lies in the center of Huoqiu iron ore field.The iron-magnesite ore deposit is occurred in the metamorphic rock series of the Archean Huoqiu group.The ores are hosted in the Mgrich carbonate rocks.The ore types can be divided into magnesite-magnetite type and chrysotile-magnetite type,which are occupied 25% respectively.The major ore forming materials came from the multi-bedded and dispersed ore-bearing strata in the metamorphic rock series.According to the geological characteristics of the deposit and ore isotope geological dating,the author believes that Lilaozhuang iron-magnesite deposit can be considered as a late Archean marine volcanic sedimentary-metamorphic type deposit.
Huoqiu iron ore field,Anhui Province,is located in the south margin of North China platform,which is situated at the backbone of the epsilon-type structure of Beihuaiyang tectonic belt.Lilaozhuang iron-magnesite deposit lies in the center of Huoqiu iron ore field.The iron-magnesite ore deposit is occurred in the metamorphic rock series of the Archean Huoqiu group.The ores are hosted in the Mgrich carbonate rocks.The ore types can be divided into magnesite-magnetite type and chrysotile-magnetite type,which are occupied 25% respectively.The major ore forming materials came from the multi-bedded and dispersed ore-bearing strata in the metamorphic rock series.According to the geological characteristics of the deposit and ore isotope geological dating,the author believes that Lilaozhuang iron-magnesite deposit can be considered as a late Archean marine volcanic sedimentary-metamorphic type deposit.
引文
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[12]邬介人,于浦生,贾群子.海相火山—沉积建造区铜、多金属成矿系列及铁—铜型矿床的勘查前景[J].地质与勘探,2000,36(6):15-19.
[13]王登红,陈毓川.与海相火山作用有关的铁—铜—铅—锌矿床成矿系列类型及成因初探[J].矿床地质,2001,20(2):112-118.
[2]安徽省地质矿产局.区域地质调查报告1:5万三河尖—运河集、桥沟—高塘集、蒋集—刘集三副(矿产部分)[R].1986.
[3]安徽省地矿局313地质队.安徽省霍邱铁矿地质工作总结[R].1995.
[4]安徽省国土资源厅,安徽省地质调查院.安徽省霍邱铁矿资源规划[R].2004.
[5]李良军,常丹燕,杜建国.安徽霍邱铁矿资源合理开发与环境保护[J].安徽大学学报(自然科学版),2005,29(2):85-89.
[6]陆三明,徐晓春,彭智,等.安徽省霍邱铁矿的资源经济意义及生态保护[J].合肥工业大学学报(社会科学版),2005,19(1):153-157.
[7]朱及天.安徽省霍邱铁矿资源的开发利用[J].矿产综合利用,2006(3):40-42.
[8]李鸿业,赵秀德.鞍本地区鞍山式铁矿区地质构造[J].前寒武纪研究进展,1999,22(3):22-29.
[9]李东林.辽宁歪头山铁矿构造研究及构造控矿模式初探[J].地质找矿论丛,2003,18(2):88-94.
[10]赵宗溥.中朝准地台前寒武纪地壳演化[M].北京:科学出版社,1993.
[11]张国成.肃南县羊露河上游似鞍山式铁矿地质特征及找矿方向[J].地质找矿论丛,2005,20(增刊):129-138.
[12]邬介人,于浦生,贾群子.海相火山—沉积建造区铜、多金属成矿系列及铁—铜型矿床的勘查前景[J].地质与勘探,2000,36(6):15-19.
[13]王登红,陈毓川.与海相火山作用有关的铁—铜—铅—锌矿床成矿系列类型及成因初探[J].矿床地质,2001,20(2):112-118.
目录
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