资源与产业 ›› 2012, Vol. 14 ›› Issue (5): 89-99.

• 资源开发 • 上一篇    下一篇

河南小秦岭金矿床主要载金矿物标型研究

魏彦淼   

  1. 华北水利水电学院 资源与环境学院,河南 郑州 450000
  • 收稿日期:2012-03-26 修回日期:2012-08-03 出版日期:2012-10-08 发布日期:2012-10-08
  • 作者简介:魏彦淼(1991— ),男,主要从事地球自然科学与资源环境科学研究。E-mail: 562672390@qq.com

TYPOMORPHICS OF GOLD-BEARING MINERALS IN XIAOQINLING GOLD DEPOSITS IN HENAN PROVINCE

WEI Yan-miao   

  1. School of Resources and Environment, North China University of Water Resources and Hydropower, Zhengzhou 450000, China
  • Received:2012-03-26 Revised:2012-08-03 Online:2012-10-08 Published:2012-10-08

摘要:

河南小秦岭金矿为石英脉型金矿床,成因类型为岩浆期后热液型。矿石中主要矿物为石英,其次为金属硫化物;金矿物主要为自然金,其次为银金矿和含银自然金、碲金矿,碲金银矿微量。自然金为包体金和裂隙金及粒间金,粒度以中细粒为主,其成色普遍偏高。黄铁矿以中细粒半自形五角十二面体及其聚形含金最高。其中元素含量统计特征规律不明显。热电系数具明显指示作用。石英的晶体特征、元素含量具指示意义。其热发光,红外光谱为矿床评价重要标志。

关键词: 金矿床, 矿物, 标型特征, 河南小秦岭

Abstract:

Henan's Xiaoqinling gold deposits belong to quartz-vein type with a genesis of post-magmatic hydrothermal. The major minerals are quartz and less sulfides. Gold minerals are mainly natural gold, less electrum, silver-bearing gold, calaverite and small quantity of silver-bearing calaverite. Natural gold exists in the form of inclusives, fissures and intergrain, fine to medium grain, high grade. Gold is highest in pyrites with forms of fine-medium grain semi-euhedral pentagonal dodecahedron and its cohesion, unclear in their element distribution, but the pyroelectricity and quartz crystal mark the gold content. Thermal luminescence and infrared spectroscopy are a vital sign in gold evaluation.

Key words: gold deposit, mineral, typomorphics, Xiaoqinling in Henan province

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