构造演化对嫩江多宝山矿集区的叠加与改造作用初探
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摘要
多宝山矿集区位于早古生代多宝山岛弧带上,地处兴安地块东缘,是我国东北部重要的金、铜多金属矿产地之一。在调查区域成矿背景、收集和分析矿集区矿床同位素测年数据、典型矿床研究的基础上,总结了多宝山、铜山、争光等矿床在成矿构造地质、矿石组构、元素组合和成矿期次等方面表现出的多期改造与叠加成矿的特征,认为叠加改造是多宝山矿集区重要的成矿作用。斑岩型多宝山铜(钼)矿床、铜山铜矿床及浅成低温热液争光金矿床主要形成于加里东期,印支期及燕山期成矿作用在矿集区形成小多宝山、三矿沟等小型矽卡岩矿床的同时,并对多宝山、铜山及争光矿床进行叠加改造。初步探讨了区域构造演化及体制转换与叠加改造成矿的关系:加里东期成矿作用形成于古亚洲洋的俯冲碰撞形成的岛弧环境;印支期成矿作用与蒙古—鄂霍茨克洋俯冲、消减有关;燕山期成矿作用是在古太平洋板块的俯冲作用下形成的。
The Duobaoshan ore concentration area is located on the early Paleozoic Duobaoshan island arc belt and the eastern margin of the Xing'an block.It is one of the most important gold and copper polymetallic ore mineral locations in northeast China.On the basis of investigating regional metallogenic background,collecting and analyzing isotope dating data of ore deposits and typical ore deposits in ore concentration areas,summarized the characteristics of multi-stage reformation and superimposition of Duobaoshan,Tongshan and Zhengguang deposits in the ore-forming tectonic geology,ore fabric,elemental assemblage and metallogenic epoch.It is concluded that the additional reformation is an important metallogenic process in the Duobaoshan ore concentration area.The Duobaoshan porphyry copper(molybdenum)deposit,the Tongshan copper deposit and the Zhengguang epithermal gold deposit were mainly formed in the Caledonian period.The Indosinian and Yanshanian metallogenic processes resulted in the formation of small-sized skarn deposits such as the ore concentration area in Xiaoduobaoshan and Sankuanggou,as well as the formation of small-sized skarn deposits.It also made superposition and reconstruction upon Duobaoshan deposit,as well as Tongshan deposit and Zhengguang deposit.The relationship between regional tectonic evolution,system transformation and superimposed reformation metallogenesis is preliminarily discussed.The Caledonian metallogenesis was formed in the island arc environment which was formed by the subduction and collision of the Paleo-Asian Ocean;the Indosinian metallogenesis was related to the subduction and subduction of the Mongolian-Okhotsk Ocean;and the Yanshanian metallogenesis was formed under the subduction of the Paleo-Pacific Plate.
The Duobaoshan ore concentration area is located on the early Paleozoic Duobaoshan island arc belt and the eastern margin of the Xing'an block.It is one of the most important gold and copper polymetallic ore mineral locations in northeast China.On the basis of investigating regional metallogenic background,collecting and analyzing isotope dating data of ore deposits and typical ore deposits in ore concentration areas,summarized the characteristics of multi-stage reformation and superimposition of Duobaoshan,Tongshan and Zhengguang deposits in the ore-forming tectonic geology,ore fabric,elemental assemblage and metallogenic epoch.It is concluded that the additional reformation is an important metallogenic process in the Duobaoshan ore concentration area.The Duobaoshan porphyry copper(molybdenum)deposit,the Tongshan copper deposit and the Zhengguang epithermal gold deposit were mainly formed in the Caledonian period.The Indosinian and Yanshanian metallogenic processes resulted in the formation of small-sized skarn deposits such as the ore concentration area in Xiaoduobaoshan and Sankuanggou,as well as the formation of small-sized skarn deposits.It also made superposition and reconstruction upon Duobaoshan deposit,as well as Tongshan deposit and Zhengguang deposit.The relationship between regional tectonic evolution,system transformation and superimposed reformation metallogenesis is preliminarily discussed.The Caledonian metallogenesis was formed in the island arc environment which was formed by the subduction and collision of the Paleo-Asian Ocean;the Indosinian metallogenesis was related to the subduction and subduction of the Mongolian-Okhotsk Ocean;and the Yanshanian metallogenesis was formed under the subduction of the Paleo-Pacific Plate.
引文
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[24]王喜臣,王训练,王琳,等.黑龙江多宝山超大型斑岩铜矿的成矿作用和后期改造[J].地质科学,2007,42(1):124-133.
[25]张连昌,陈志广,吴华英,等.蒙古—鄂霍茨克造山带得尔布干多金属成矿带构造-岩浆成矿作用及动力学背景[J].矿床地质,2010,29(增刊1):125-126.
[26]孙景贵,张勇,邢树文,等.兴蒙造山带东缘内生钼矿床的成因类型、成矿年代及成矿动力学背景[J].岩石学报,2012,28(4):1317-1332.
[27]周建波,曾维顺,曹嘉麟,等.中国东北地区的构造格局与演化:从500Ma到180Ma[J].吉林大学学报(地球科学版),2012,42(5):1298-1316,1329.
[28]赵元艺,赵广江.黑龙江省多宝山及邻区构造格局与演化[J].黑龙江地质,1994,5(4):13-20.
[29]李锦轶,张进,杨天南,等.北亚造山区南部及其毗邻地区地壳构造分区与构造演化[J].吉林大学学报(地球科学版),2009,39(4):584-605.
[30]陈衍景,张成,李诺,等.中国东北钼矿床地质[J].吉林大学学报,2012,42(5):1223-1268.
[31]殷海燕.黑龙江北部浅成低温热液金矿岩浆岩及其与成矿关系.硕士学位论文[D].北京:中国地质大学(北京),2014:1-75.
[2]赵元艺,王江朋,赵广江,等.黑龙江多宝山矿集区成矿规律与找矿方向[J].吉林大学学报(地球科学版),2011,41(6):1676-1688.
[3]尹冰川,冉清昌.多宝山超大型铜矿床的成矿构造环境[J].矿物学报,1997,17(2):220-224.
[4]孟展,梁文栋,李壮,等.多宝山地区地质背景与找矿方向思考[J].矿床地质,2014,33(增刊1):1025-1026.
[5]李德荣,朱朝利,吕军,等.黑龙江三矿沟—多宝山成矿带构造-岩浆成矿作用[J].中国矿业,2010,19(增刊1):142-146.
[6]崔根,王金益,张景仙,等.黑龙江多宝山花岗闪长岩的锆石SHRIMP U-Pb年龄及其地质意义[J].世界地质,2008,27(4):387-394.
[7]向安平,杨郧城,李贵涛,等.黑龙江多宝山斑岩Cu-Mo矿床成岩成矿时代研究[J].矿床地质,2012,31(6):1237-1248.
[8]赵一鸣,毕承思,邹晓秋,等.黑龙江多宝山、铜山大型斑岩铜(钼)矿床中辉钼矿的铼-锇同位素年龄[J].地球学报,1997,18(1):61-67.
[9]黄道袤,赵元艺,符家俊,等.黑龙江省铜山地区岩浆岩年代学、地球化学及其地质意义[J].矿床地质,2014,33(增刊1):399-400.
[10]褚少雄,刘建明,徐九华,等.黑龙江三矿沟铁铜矿床花岗闪长岩锆石U-Pb定年、岩石成因及构造意义[J].岩石学报,2012,28(2):433-450.
[11]李德荣,吕福林,刘素颖,等.黑龙江省嫩江县三矿沟矿区地质特征及找矿方向[J].中国地质,2011,38(2):415-426.
[12]宋国学,秦克章,王乐,等.黑龙江多宝山矿田争光金矿床类型、U-Pb年代学及古火山机构[J].岩石学报,2015,31(8):2402-2416.
[13]李运,符家骏,赵元艺,等.黑龙江争光金矿床年代学特征及成矿意义[J].地质学报,2016,90(1):151-162.
[14]白令安,孙景贵,古阿雷,等.黑龙江省小多宝山矽卡岩型铜铁矿床地质特征及找矿方向[J].黄金,2015,36(6):24-28.
[15]郝宇杰.黑龙江省多宝山矿集区成矿作用与成矿规律研究[D].长春:吉林大学,2015.
[16]鲍希波.黑龙江省嫩江县二道坎银矿普查报告[R].2016.
[17]赵广江,候玉树,程富强.黑龙江黑河市争光岩金矿床地质特征及成因浅析[J].有色金属,2007,59(3):91-94.
[18]汪岩,杨晓平,那福超,等.嫩江—黑河构造带中花岗质糜棱岩的确定及地质意义[J].地质与资源,2013,22(6):452-459.
[19]韩国卿,刘永江,温泉波,等.嫩江—八里罕断裂带岭下韧性剪切带变形特征[J].吉林大学学报(地球科学版),2009,39(3):397-405.
[20]刘宝山,杨晓平,李成禄.黑龙江省嫩江三合屯韧性剪切带与金矿化[J].矿产与地质,2017,31(3):503-506,513.
[21]李成禄,徐文喜,于援帮,等.黑龙江省地质小兴安岭西北部与永新金矿有关岩浆岩的年代学和地球化学及成矿构造环境[J].现代地质,2017,31(6):1114-1130.
[22]黄永卫,刘扬,王喜臣,等.黑龙江北部多宝山矿区奥陶系的岩石特征和构造意义[J].地质科学,2009,44(1):245-256.
[23]赵广江,候玉树,丁殿君.黑龙江争光金矿地质地球化学特征及成因探讨[C]//第八届全国矿床会议论文集,2006:177-180.
[24]王喜臣,王训练,王琳,等.黑龙江多宝山超大型斑岩铜矿的成矿作用和后期改造[J].地质科学,2007,42(1):124-133.
[25]张连昌,陈志广,吴华英,等.蒙古—鄂霍茨克造山带得尔布干多金属成矿带构造-岩浆成矿作用及动力学背景[J].矿床地质,2010,29(增刊1):125-126.
[26]孙景贵,张勇,邢树文,等.兴蒙造山带东缘内生钼矿床的成因类型、成矿年代及成矿动力学背景[J].岩石学报,2012,28(4):1317-1332.
[27]周建波,曾维顺,曹嘉麟,等.中国东北地区的构造格局与演化:从500Ma到180Ma[J].吉林大学学报(地球科学版),2012,42(5):1298-1316,1329.
[28]赵元艺,赵广江.黑龙江省多宝山及邻区构造格局与演化[J].黑龙江地质,1994,5(4):13-20.
[29]李锦轶,张进,杨天南,等.北亚造山区南部及其毗邻地区地壳构造分区与构造演化[J].吉林大学学报(地球科学版),2009,39(4):584-605.
[30]陈衍景,张成,李诺,等.中国东北钼矿床地质[J].吉林大学学报,2012,42(5):1223-1268.
[31]殷海燕.黑龙江北部浅成低温热液金矿岩浆岩及其与成矿关系.硕士学位论文[D].北京:中国地质大学(北京),2014:1-75.
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