MINERALOGICAL CHARACTERISTICS OF DAHUANGHUA COPPER POLYMETALLIC DEPOSIT IN CERTRAL INNER MONGOLIA
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摘要:
大黄花铜多金属矿位于赤峰-朝阳金多金属成矿带南部，矿化发生在燕山期正长花岗岩与石炭系酒局子组大理岩接触部位，局部构成铜（铁）矿体.夕卡岩矿物主要为石榴石、透辉石、透闪石、绿帘石、绿泥石、角闪石及阳起石，金属矿物有黄铜矿、辉铜矿、黝铜矿、斑铜矿、铜蓝及氧化次生矿物蓝铜矿、孔雀石、褐铁矿.围岩蚀变强烈，呈现清晰的蚀变分带现象，自接触带向外可分为较强的透闪石-阳起石化带，较强的透闪石-透辉石化带，弱蚀变的大理岩化带.金属元素组合特征明显，为Cu、Pb、Zn、Au、Ag组合.该铜多金属矿的形成与正长花岗岩的侵入作用有关，成矿时代为中侏罗世晚期，与朝阳-赤峰地区金多金属矿成岩成矿时代一致.
Abstract:The Dahuanghua Cu-polymetallic deposit is located in the south of Chifeng-Chaoyang Au-polymetallic metallogenic belt. The mineralization is occurred in the contact between Yanshanian syenogranite and Carboniferous Jiujuzi marble with Cu/Fe orebodies formed locally. The skarn minerals are mainly composed of garnet, diopside, tremolite, epidote, chlorite, hornblende and actinolite; while the metal minerals include chalcopyrite, chalcocite, tetrahedrite, bornite, covellite and oxidized secondary minerals such as azurite, malachite and limonite. The wall rock alteration is intensive, presenting a clear zonation:strongly-altered tremolite-actinolite zone, strong tremolite-diopside alteration zone, and weakly-altered marble zone outwards from the contact zone. The metallic element association of Cu-Pb-Zn-Au-Ag is obvious. This Cu-polymetallic deposit was formed in the late period of Middle Jurassic and related to the intrusion of syenogranite, which is consistent with the diagenetic-metallogenic age of Au-polymetallic deposits in Chaoyang-Chifeng area.
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Key words:
- Cu-polymetallic deposit /
- metallogenic age /
- skarn type /
- Inner Mongolia
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[1] 牛树银, 王宝德, 张建珍, 等.内蒙古金厂沟梁金矿的构造特征及深部找矿预测[J].大地构造与成矿学, 2011, 35(3):348-354. http://d.old.wanfangdata.com.cn/Periodical/ddgzyckx201103003
[2] 宋维民, 邢德和, 郭胜哲, 等.内蒙古金厂沟梁西对面沟岩体岩石地球化学特征及意义[J].地质与资源, 2009, 18(2):134-139. http://d.old.wanfangdata.com.cn/Periodical/gjsdz200902012
[3] 郑超, 王建国, 赵纯福, 等.建平烧锅营子金矿区矿化地质特征及找矿标志[J].沈阳黄金学院学报, 1995, 14(2):101-109. http://www.cnki.com.cn/Article/CJFDTotal-HUJI199502000.htm
[4] 李鹏飞.烧锅营子金矿区构造控矿规律与成矿预测[D].沈阳: 东北大学, 2009.
[5] 李秀琴, 杨吉.内蒙撰山子金矿赋存规律及成矿预测[J].长春科技大学学报, 1998:30(1):32-35. http://d.old.wanfangdata.com.cn/Periodical/cckjdxxb200001007
[6] 庞奖励, 裘愉卓.辽宁二道沟金矿床成矿地球化学条件研究[J].地质地球化学, 1996, 30(4):25-29. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199600061741
[7] 王时麒, 孙承志.内蒙古赤峰地区金矿地质[M].呼和浩特:内蒙古人民出版社, 1994:375.
[8] 吴福元, 李献华, 杨进辉, 等.花岗岩成因研究的若干问题[J].岩石学报, 2007, 23(6):1217-1238. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200706001
[9] 邵积东, 王守光, 赵文涛, 等.大兴安岭地区成矿地质特征及找矿前景分析[J].地质与资源, 2007, 16(4):252-256. http://d.old.wanfangdata.com.cn/Periodical/gjsdz200704002
[10] 丰成友, 赵一鸣, 李大新, 等.青海西部祁漫塔格地区夕卡岩型铁铜多金属矿床的夕卡岩类型和矿物学特征[J].地质学报, 2011, 85(7):1108-1115.
[11] 丰成友, 李东生, 吴正寿, 等.东昆仑祁漫塔格成矿带矿床类型、时空分布及多金属成矿作用[J].西北地质, 2010, 43(4):10-17. http://d.old.wanfangdata.com.cn/Periodical/xbdz201004002
[12] 王松, 丰成友, 李世金, 等.青海祁漫塔格卡尔却卡铜多金属矿区花岗闪长岩锆石SHRIMP U-Pb测年及其地质意义[J].中国地质, 2009, 36(1):74-84. http://d.old.wanfangdata.com.cn/Periodical/zgdizhi200901005
[13] Einaudi M T, Meinert L D, Newberry R J. Skarn deposits[J]. Economic Geology, 1981, 75:317-391. http://d.old.wanfangdata.com.cn/Periodical/dizhixb201107004
[14] 刘晓菲, 袁顺达, 吴胜华, 等.湖南金船塘锡铋矿床矿物化学特征及其地质意义[J].中国地质, 2012, 39(6):1759-1777. http://d.old.wanfangdata.com.cn/Periodical/zgdizhi201206022
[15] 李斌, 陈井胜, 张建伟, 等.内蒙古敖汉旗大黄花正长花岗岩锆石U-Pb年代学及地球化学特征[J].地质与资源, 2016, 25(2):113-120. http://d.old.wanfangdata.com.cn/Periodical/gjsdz201602003
[16] 阎志军, 阴翠珍, 孙洪礼, 等.撰山子金矿田燕山期花岗岩特征及其与金矿的关系[J].黄金, 1997, 18(2):8-15. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199700225530
[17] 苗来成, 范蔚茗, 翟明国, 等.金厂沟梁-二道沟金矿田内花岗岩类侵入体锆石的离子探针U-Pb年代学及意义[J].岩石学报, 2003, 19(1):71-80. http://d.old.wanfangdata.com.cn/Periodical/ysxb98200301008
[18] 孙珍军.华北克拉通北缘赤峰-朝阳地区金矿成矿作用研究[D].长春: 吉林大学, 2013.
http://cdmd.cnki.com.cn/Article/CDMD-10183-1013193267.htm [19] 陈井胜, 彭艳东, 刘淼, 等.辽西建平烧锅营子金矿花岗岩的锆石U-Pb年代学、地球化学特征及地质意义[J].中国地质, 2016, 43(1):395-409. http://d.old.wanfangdata.com.cn/Periodical/zgdizhi201602003
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