大兴安岭弧盆系构造地球化学特征及地质意义
|
摘要
根据区域化探成果,对大兴安岭弧盆系的4个Ⅲ级构造单元及主要构造的地球化学特征进行了研究。归纳总结了各构造单元的地球化学元素的分布特征,划分了4个异常带。研究表明:地层、岩性及构造对元素的分布控制较为明显。通过对4个Ⅲ级构造单元含矿性的对比,发现呼玛弧后盆地成矿元素以Au、Zn及铁族元素为主;多宝山岛弧成矿元素以Au、Cu、Mo及铁族元素为主;嫩江—黑河构造混杂岩成矿元素以Au为主;剌尔滨河岩浆弧成矿元素以Au、Ag、W、Mo为主。
Based on the results of regional geochemical exploration,the 4Ⅲ grade structural units in arc-basin systerm of Da Hinggan Mountains and their geochemical characteristics are studied.The distribution characteristics of geochemical elements of each tectonic unit are summarized,and 4 anomalous zones are divided.The study shows that the distribution of elements is obviously controlled by strata,lithology and structure.Through the comparison of the ore bearing properties of 4 Ⅲ grade tectonic units,it is found that the oreforming elements of the Huma back-arc basin are mainly Au,Zn and iron group elements,and the main metallogenic elements of the Duobaoshan arc are Au,Cu,Mo and iron group elements.The metallogenic elements of the Nenjiang-Heihe tectonic melange are mainly Au,and the ore forming elements of the Riparian river magma arc are mainly Au,Ag,W and Mo.
Based on the results of regional geochemical exploration,the 4Ⅲ grade structural units in arc-basin systerm of Da Hinggan Mountains and their geochemical characteristics are studied.The distribution characteristics of geochemical elements of each tectonic unit are summarized,and 4 anomalous zones are divided.The study shows that the distribution of elements is obviously controlled by strata,lithology and structure.Through the comparison of the ore bearing properties of 4 Ⅲ grade tectonic units,it is found that the oreforming elements of the Huma back-arc basin are mainly Au,Zn and iron group elements,and the main metallogenic elements of the Duobaoshan arc are Au,Cu,Mo and iron group elements.The metallogenic elements of the Nenjiang-Heihe tectonic melange are mainly Au,and the ore forming elements of the Riparian river magma arc are mainly Au,Ag,W and Mo.
引文
[1]杜琦,陈明秀.多宝山斑岩铜矿床成因模式[J].矿床地质,1983,2(2):42-48.
[2]杜琦.多宝山斑岩铜矿床[M].地质出版社,1988.
[3]杜琦,马晓阳,韩成满,等.斑岩铜矿成因探讨[M].北京:地质出版社,2008.
[4]魏浩,徐九华,曾庆栋,等.黑龙江多宝山斑岩铜(钼)矿床蚀变-矿化阶段及其流体演化[J].岩石学报,2011,27(5):1361-1374.
[5]马晓阳.我国东北森林沼泽区化探异常查证方法技术研究[D].北京:中国地质大学(北京),2006.
[6]安国英.青海省东昆仑中段地区构造地球化学特征及地质意义[J].物探与化探,2015,39(1):69-75.
[7]黑龙江省地质调查研究总院.黑龙江省矿产资源潜力评价[R].2013.
[8]黑龙江省地质调查研究总院.黑龙江1∶25万兴隆、呼玛县幅区调报告[R].2008.
[9]黑龙江省地质调查研究总院.黑龙江1∶25万卧都河、黑河市幅区调报告[R].2008.
[10]黑龙江省地质调查研究总院.黑龙江1∶20万霍龙门、嫩江、沐河屯、孙吴县幅区域化探报告[R].2011.
[11]黑龙江省地质调查研究总院.黑龙江1∶20万兴隆、呼玛县、三道卡、白石砬子幅区域化探报告[R].2011.
[12]黑龙江省地质调查研究总院.黑龙江1∶25万兴安、开库康、呼中镇、塔河县、新街基、新林镇、兴隆幅区域化探报告[R].2012.
[13]黑龙江省地质调查研究总院.黑龙江1∶25万加格达奇、卧都河、黑河市幅区域化探报告[R].2012.
[14]藏金生,李诗言,蔡新明.化探中五个常用参数的应用[J].科技视界,2013(28):8-10.
[2]杜琦.多宝山斑岩铜矿床[M].地质出版社,1988.
[3]杜琦,马晓阳,韩成满,等.斑岩铜矿成因探讨[M].北京:地质出版社,2008.
[4]魏浩,徐九华,曾庆栋,等.黑龙江多宝山斑岩铜(钼)矿床蚀变-矿化阶段及其流体演化[J].岩石学报,2011,27(5):1361-1374.
[5]马晓阳.我国东北森林沼泽区化探异常查证方法技术研究[D].北京:中国地质大学(北京),2006.
[6]安国英.青海省东昆仑中段地区构造地球化学特征及地质意义[J].物探与化探,2015,39(1):69-75.
[7]黑龙江省地质调查研究总院.黑龙江省矿产资源潜力评价[R].2013.
[8]黑龙江省地质调查研究总院.黑龙江1∶25万兴隆、呼玛县幅区调报告[R].2008.
[9]黑龙江省地质调查研究总院.黑龙江1∶25万卧都河、黑河市幅区调报告[R].2008.
[10]黑龙江省地质调查研究总院.黑龙江1∶20万霍龙门、嫩江、沐河屯、孙吴县幅区域化探报告[R].2011.
[11]黑龙江省地质调查研究总院.黑龙江1∶20万兴隆、呼玛县、三道卡、白石砬子幅区域化探报告[R].2011.
[12]黑龙江省地质调查研究总院.黑龙江1∶25万兴安、开库康、呼中镇、塔河县、新街基、新林镇、兴隆幅区域化探报告[R].2012.
[13]黑龙江省地质调查研究总院.黑龙江1∶25万加格达奇、卧都河、黑河市幅区域化探报告[R].2012.
[14]藏金生,李诗言,蔡新明.化探中五个常用参数的应用[J].科技视界,2013(28):8-10.