欢迎登录材料期刊网

材料期刊网

高级检索

通过对界河金矿控矿断裂的产状变化及其活动方式与金矿体赋存位置关系的研究,揭示控矿断裂在主成矿期表现为左旋正断活动的动力学特征,金矿体赋存的有利部位为断裂构造走向上偏北、倾向上倾角变陡的局部引张扩容部位.矿体向SW侧伏,侧伏角为40°~70°,且总体上保持似等距分布.结合区域含矿下限的分析和矿体空间产状模式,推断Ⅳ和Ⅶ号矿体沿SW侧伏方向向下可能出现第二矿化富集带.

Based on the analysis on the relationship between the spatial location of gold ore bodies and the atti-tude and acting pattern of ore-controlling fracture zones in Jiehe gold deposit, it.was revealed that the ore-controlling fractures were characterized by sinistral normal acting pattern during mineralization, the favorable locations for ore bodies were partial extensional positions among faults, where stroked northwards and dipped deeply. The ore bodies were commonly SW side dipping with the angle of 40°~70° and distributed near-equidistance. Finally, combined with studies on the limit of regional ore-bearing depth and the ore body spatial location model, it was predicted that a second mineralization enrichment zone might exist beneath Ⅳ and Ⅶ ore bodies along SW side dipping direction.

参考文献

[1] 曹新志;高秋斌;徐伯骏.矿区深部矿体定位预测的有效途径和方法研究--以山东招远界河金矿为例[M].武汉:中国地质大学出版社,2005:13-22.
[2] 孙丰月;石准立;冯本智.胶东金矿地质及幔源C-H-O流体分异成岩成矿[M].长春:吉林人民出版社,1995:2-8,123-127,111-130.
[3] 苗来成;罗镇宽.胶东招莱地区花岗岩和金矿床[M].北京:冶金工业出版社,2002:104-106.
[4] 张海泉.山东省胶东地区焦家式金矿床中含金石英大脉流体包裹体的特征[J].地质通报,2005(05):456-461.
[5] 苗来成;罗镇宽;关康.胶东招掖金矿带控矿断裂演化规律[J].地质找矿论丛,1997(01):26-35.
[6] 高秋斌;范永香.论变质岩区断裂构造对脉状金矿床的控制规律[J].地球科学-中国地质大学学报,1995(02):2-11.
[7] 崔天顺.山东招远界河金矿成因探讨[J].湖南地质,1995(04):246-249.
[8] 刘于旺.焦家金矿田断裂构造控矿特征及控矿机理浅析[J].黄金,2005(09):9-13.
[9] 张均.隐伏矿体定位预测方法以脉状金矿为例[M].北京:地质出版社,1999:26-39.
[10] 孙丰月 .太古代脉状金矿研究某些新进展[J].地质科技情报,1995,14(03):61-66.
[11] Groves D I .The crustal continuum model for late-Archean lode-gold deposits of Yilgarn Block,Western Australia[J].Mineralium Deposita,1993,28:366-374.
[12] Gebre-Mariam M;Hagemann S G;Groves D I .A classification scheme for epigenetic Archean lode-gold deposits[J].Mineralium Deposita,1995,30:408-410.
[13] Kerrich R .Geodynamic setting of mesothermal deposits:An association with accretionary tecto-nic regimes[J].Geology,1990,18:882-885.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%