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金属矿山 ›› 2009, Vol. 39 ›› Issue (03): 91-95.

• 地质与测量 • 上一篇    下一篇

从老田岩体谈隐爆角砾岩型矿床的成因机制和找矿方向

轩慎民   

  1. 河南省黄金管理局
  • 出版日期:2009-03-14 发布日期:2012-01-30

Discussion on the Genesis and Prospecting Direction of Cryptoexplosive reccia Type Deposit in Case of Laotian Rockmass

Xuan Shenmin   

  1. Henan Gold Adminis tration
  • Online:2009-03-14 Published:2012-01-30

摘要: 老田岩体产出在豫西南一个岩浆杂岩带上,是印支晚期-燕山期形成的一个花岗质隐爆角砾岩体。其内部和周围分别形成有金及金银铅锌多金属矿床。以成矿机制为契机,对这种成因联系进行了揭示,提出了隐爆角砾岩的近程和远程成矿作用,总结了该类岩体与其所成矿床在空间分布方面的规律性,拓宽了以往对该类矿床所成矿种单一的局限性认识,为隐爆角砾岩区的远程找矿和多矿种找矿指出了方向。

关键词: 隐爆角砾岩体, 多金属矿床, 载矿流体, 成矿物质

Abstract: Laotian rockmass occurs in a belt of magmatic complex in the southwest of Henan and is a granitic cryptoexplosive breccia formed in late Indo-Chinese-Yanshan period.Gold and gold-silver-lead-zinc polymetallic deposits have been formed in and around it.The paper discloses the genesis connection from metallogenic mechanism, proposes the short and long period metallization of cryptoexplosive breccia and summarizes the regularity of this rockmass and its deposit in spatial distribution, thus breaking through the restriction of the previous recognition of single ore type from this deposit and pointing out the direction of future prospecting and prospecting of multiple types of ores in cryptoexplosive breccia area.

Key words: Cryptoexplosive breccia rockmass, Polymetallic ore deposit, Ore-carrying fluid, Metallogenic , substances