| 大兴安岭南段锡多金属成矿系列 |
| |
| 引用本文： | 王京彬,王玉往,王莉娟.大兴安岭南段锡多金属成矿系列[J].地质与勘探,2005,41(6):15-20. |
| |
| 作者姓名： | 王京彬 王玉往 王莉娟 |
| |
| 作者单位： | 北京矿产地质研究院,北京,100012;北京矿产地质研究院,北京,100012;北京矿产地质研究院,北京,100012 |
| |
| 基金项目： | 中国科学院资助项目，中-日合作项目 |
| |
| 摘 要： | 大兴安岭南段是我国北方最重要的锡-多金属成矿集中区.根据成矿花岗岩和成矿元素组合的不同,可分为3个成矿系列:锡(钨)成矿系列(Sn-W-Nb-Ta-Be)、锡-多金属系列(Sn-Ag-Cu-Pb-Zn)和含锡的多金属系列(Pb-Zn-Cu-Ag),3个系列的成矿时代相同(130～150Ma),均与大兴安岭南段燕山期花岗质岩浆作用有关.与锡(钨)成矿系列有关的花岗岩,主要是钾长花岗岩-花岗斑岩,具有钛铁矿系列花岗岩的特征;与含锡的多金属系列有关的花岗岩,主要是花岗闪长岩-石英二长岩类,具有I型或磁铁矿系列花岗岩的特征;而当钾长花岗岩类与花岗闪长岩-二长斑岩等构成花岗质杂岩体或定位在相近空间时,常形成锡-多金属共生组合.研究表明,锡-多金属系列是与含锡的钛铁矿系列和含多金属的磁铁矿系列两种不同花岗岩类有关的含矿热液同位叠加成矿的结果.高成熟度、富锡的锡林浩特元古宙变质岩的重融-分异演化,可能是形成大兴安岭南段锡富集的主要原因.
|
| 关 键 词： | 大兴安岭 锡矿床 多金属矿床 成矿系列 燕山期花岗岩 |
| 文章编号： | 0495-5331(2005)06-0015-06 |
| 收稿时间： | 07 5 2005 12:00AM |
| 修稿时间： | 08 20 2005 12:00AM |
TIN-POLYMETALLIC METALLOGENIC SERIES IN THE SOUTHERN PART OF DA HINGGAN MOUNTAINS, CHINA |
| |
| WANG Jing-bin,WANG Yu-wang,WANG Li-juan.TIN-POLYMETALLIC METALLOGENIC SERIES IN THE SOUTHERN PART OF DA HINGGAN MOUNTAINS, CHINA[J].Geology and Prospecting,2005,41(6):15-20. |
| |
| Authors: | WANG Jing-bin WANG Yu-wang WANG Li-juan |
| |
| Institution: | Beijing Institute of Geology for Mineral Resources, Belting 100012 |
| |
| Abstract: | The southern part of Da Hinggan mountains is the most important tin-polymetallic concentration area in the Northern China.Based on ore-forming element assemblages,three metallogenic series like Sn(W)-,paragenetic Sn-polymetallic-and polymetallic-series,are recognized.Sn(W)-series,consisting of greisen,skarn and vein types,is associated with ilmenite-series,potassic feldspar(Kf) granites.Polymetallic Pb-Zn-Cu series with porphyry,skarn and vein types,is related to magnetite-series,granodiorite-monzonite.While paragenetic tin-polymetallic mineralization is associated with the coexisting of Kf-granite and granodiorite-monzonite,it is suggested that the paragenetic tinpolymetallic series is caused by the superimposed mineralization with tin from ilmenite-series magma and polymetallic elements from magnetite-series magmatic-hydrothermal system.All the three series possess similar metallogenic age,concentrating in J_3-K_1(130~150Ma).The melting of high maturity and tin-rich Xilinhot Proterozoic complex(micro-massif) during Mesozoic period,could generate the ilmenite-series,tin-bearing felsic magma,and cause tin mineralization in the southern part of Da Hinggan mountains. |
| |
| Keywords: | Da hinggan mountains tin-deposit polymetallic deposit metallogenic series Yanshanian granitoid |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质与勘探》浏览原始摘要信息 |
| 点击此处可从《地质与勘探》下载免费的PDF全文 |
|
