孟德河金矿床赋存于多宝山—大新屯北东向成矿带的新元古界北宽河组变质地层中，地层平均Au丰度值为0.17×10－6，为区内金矿床的主要矿源层。矿体呈陡倾斜似层状产于北宽河地层内，普遍发育的岩浆岩为金矿床的形成提供了部分物源和热动力，北东向韧性剪带及张性断裂构造为矿液的运移、聚集成矿提供了良好的场所。在分析矿床地质特征的基础上，探讨了控矿因素，归纳总结了找矿标志，并初步探讨了孟德河金矿床的成因。矿体严格受韧性变形带控制，矿体产于韧性变形带的强烈变形部位，矿床成因类型应为韧性剪切带型。
Gold deposits in Mengdehe occurred in Beikuanhe Fm metamorphic strata of Neoproterozoic erathem which belong to Duobaoshan -Daxintun NE metallogenic belt .The strata’s average value of Au abundance is 0.17 × 10 -6 ,forming the main mineral source for the mine area .Orebody is produced in Beikuanhe Fm with its steeply dip-ping and stratiform features , the universally developed magmatite provides part of the material source and thermody-namic power for the formation of the gold deposits ,the NE ductile shear zones and tensile fracture structures provide a good spot for ore fluid migration and accumulation for ore formation .The paper based on the analysis of geological fea-tures of the deposit discusses the ore-controlling factors and summarizes the ore-prospecting marks as well as prelimi-nary causes of gold deposit in Mengdehe .The orebody is strictly controlled by ductile deformation zone ,generated in the strongly deformed section of the ductile deformation zone ,so the genesis of the deposit should be ductile shear zone type.
参考文献
| [1] | 韩振新,郝正平,侯敏.黑龙江省主要成矿带矿床成矿系列[M].哈尔滨:哈尔滨工程大学出版社,1996.,1996. |
| [2] | 韩振新,徐衍强,郑庆道.黑龙江省重要金属和非金属矿产的成矿系列及其演化[M].哈尔滨:黑龙江人民出版社,2003.,2003. |
| [3] | 韩振哲,李国臣,李文龙,等.黑龙江省黑河市罕达气八直沟铜多金属矿普查报告[R].哈尔滨:黑龙江省地质矿产局,2012.,2012. |
| [4] | 高秋斌,范永香,王可勇,等.金矿床深部成矿预测的主要途径[J].黄金地质,1998(2):21-26.,1998. |
| [5] | 梁科伟,刘旭光,曲辉,等.黑龙江省多宝山地区矿产远景调查报告[R].哈尔滨:黑龙江省地质矿产局,2010.,2010. |
| [6] | 黑龙江省地质矿产局.黑龙江省区域地质志[M].北京:地质出版社,1993.,1993. |
| [7] | 杨继权,王秀琴,刘殿生,孔含泉,刘海鹏.黑龙江省大地构造单元划分及特征[J].世界地质,2007(04):426-434,452. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%