img

QQ群聊

img

官方微信

高级检索

J4 ›› 2010, Vol. 18 ›› Issue (6): 8-12.

• 矿产勘查 • 上一篇    下一篇

西秦岭寨上特大型金矿床黄铁矿特征及其含金性研究

刘东海,刘新会   

  1. 武警黄金第五支队,陕西  西安   710100
  • 收稿日期:2010-07-15 修回日期:2010-11-06 出版日期:2010-12-30 发布日期:2011-03-10
  • 作者简介:刘东海(1975-),男,山东郓城人,工程师,从事金矿地质勘查与研究工作.ldh751022@163.com

Research on the Characteristics of Pyrite and its Gold -bearing Properties of Zhaishang Oversized Gold Deposit in Western Qinling

LIU Donghai,LIU Xinhui   

  1. No.5 Gold Geological Party of CAPF,Xi’an 710100,Shaanxi,China
  • Received:2010-07-15 Revised:2010-11-06 Online:2010-12-30 Published:2011-03-10
  • Supported by:

    中央地质勘查项目“甘肃省岷县寨上金矿床金矿物赋存状态查定”(编号:2009)资助.

摘要:

寨上金矿中黄铁矿是主要的载金矿物之一。围岩中黄铁矿呈草莓状、莓球状、圆球状和立方体等晶形,颗粒相对较细小。矿石中黄铁矿呈立方体、五角十二面体、他形粒状及细网脉状,颗粒相对较粗。寨上金矿黄铁矿化学成分总体呈贫铁w(Fe)=45.98%,贫硫w(S)= 51.69%,As、Sb等替代S,Co、Ni、Ag等替代Fe,Au呈独立矿物形式存在于黄铁矿中。草莓状和立方体黄铁矿含金性较差,他形粒状、细脉状及五角十二面黄铁矿含金性较好。不同晶形黄铁矿中Au与As呈负相关性。具有增生环带铁矿的第一 、三、五环带含Au、As较高,而内核、第二、四、六环带中Au、As较低,Au与As呈正相关性。

关键词: 卡林型金矿, 黄铁矿, 金矿物, 寨上金矿, 西秦岭

Abstract:

Pyrite is one of the main Au-carriers in the Zhaishang gold deposit.The pyrite in the rock are fine and strawberry-like or coccus-like,globe-like,cube-like pyrite.The pyrite in the rock are thick and big,mineral form as cube,pyritohedron,xenomorphic granular, small veins.Pyrites of mineralization are poor in iron (Fe)=45.98%,sulfur (S)= 51.69%.S has been replaced by As,Sb,Fe has been replaced by Ni、Ag.The mode of occurrence of Au is self-existent in the pyrites.Au-carriers in the those strawberry-like,cube-like pyrite less than in those pyrites mineral form as cube,pyritohedron,xenomorphic granular,small veins.Au,As has the negative correlation characteristic feature in different pyrite.Those pyrites as overgrowth rim,in the first rim,third rim,fives rims are rich of gold, while in the core,second rim,fourth rim,and sixth rim are poor of gold,the relationship between Au and As is positive correlation.

Key words: Carlin type gold deposit, Pyrite, Gold mineralization, Zhaishang gold deposit, Western Qinling

中图分类号: 

  • P618.51

[1]苏欣栋.我国微细浸染型金矿某些载金矿物中金的赋存状态[J].黄金地质科技,1991,(4):57-62.
[2] Simon G,Kesler S E,Chryssoulis S L.Geochemical and Textures of Gold Bearing Arsenian Pyrite,Twin Creeks, Nevada:Implications for Deposition of Gold in Carlin Type Deposits[J].Economic Geology,1999,94 :405-422.
[3]赵利青,陈祥,周红,等.南秦岭赋存于沉积岩中的金龙山金矿带主要载金矿物黄铁矿、毒砂研究[J].地质与资源,2000,9(4):193-199.
[4]马建秦,李朝阳,张复新.秦岭煎茶岭金矿床含金富砷黄铁矿增生环带研究[J].矿物学报,1999,19(2):139-146.
[5]刘新会,于岚,张复新,等.甘肃岷县寨上金矿床地质特征及成因初探[J].西北地质,2005,38(4):45-53.
[6]李德忍.黄铁矿中金赋存状态的电子探针研究和超微粒金的发现[J].矿物学报,1992,12(3):284-287.
[7]叶先贤,孙振亚,陈仝,等.超微金赋存状态的研究[J]. 黄金,1991,12(7):1-5.
[8]毛水和.不可见金的赋存状态研究[J].矿物学报,1990,10(1):66-75.

[1] 王营田,王山章,李波,韩宇. 山东大庄子金矿床1号脉成矿规律及深部探矿预测[J]. J4, 2012, 20(4): 123-127.
[2] 王杏村,牛树银,燕建设,孙卫志,孙爱群,冯建之,陈超,徐建昌,王社全,崔燮祥,王铮,李斌. 小秦岭中矿带金矿田成矿构造分析[J]. J4, 2012, 20(4): 96-103.
[3] 李军峰,武际春,刘维民,蒋善波,彭洪迎,朱随洲,生显军,赵红浩,王兵. 山东玲珑金矿田51号脉成矿规律研究及远景预测[J]. J4, 2012, 20(4): 113-116.
[4] 孔令芝,朱随洲,韩云松,张龙,储照波,李新年,吴海庆,杨桂彬,叶官威,信太岭,李军峰. 山东玲珑断裂带地球物理特征综合分析及找矿预测[J]. J4, 2012, 20(4): 117-122.
[5] 刘新会,陈彩华,赵天心,张科利,陈力子,刘爽. 西秦岭寨上金矿原生晕地球化学特征及成矿预测[J]. J4, 2012, 20(4): 7-15.
[6] 刘金友,刘淑亮,高池兴,顿美霞. 山东西涝口金矿地球化学特征研究[J]. J4, 2012, 20(4): 16-20.
[7] 姜维明,齐婓,孟伟,许建波,刘秋杰,吕军恩,原少波,孙健. 山东玲珑矿田东风矿区成矿规律及远景预测[J]. J4, 2012, 20(4): 21-25.
[8] 金念宪,王君亭,孙之夫,李文,廖昌溪,所建成,刘祥朋. 韧性剪切带控制的“焦家式”金矿及其找矿方向[J]. J4, 2012, 20(4): 26-32.
[9] 黄广环. 内蒙古中东部重要成矿带地质特征及找矿潜力分析[J]. J4, 2012, 20(4): 33-38.
[10] 孙杰,李瑞军,邵周伟,徐芬. 山东谢家沟矿区金矿体地质特征及其深部资源详查评价[J]. J4, 2012, 20(4): 39-42.
[11] 郑卫军,刘新会,陈彩华. 甘肃寨上金矿床1∶5万水系沉积物测量综合评价[J]. J4, 2012, 20(4): 43-48.
[12] 马凤山,赵海军,郭捷,王杰,魏爱华. 山东望儿山矿区浅部复采对井筒稳定性影响的数值模拟[J]. J4, 2012, 20(4): 49-53.
[13] 王义春,李波,张永林,韩宇,任晓明,王召敏,王京聪,周奇明. 电吸附化探新方法在麻湾金矿区寻找深部矿体的研究[J]. J4, 2012, 20(4): 62-66.
[14] 刘桂阁,李艳秋,常春郊,丛润祥,张慧玉,陈勇敢,王美娟,朝银银. 区域化探数据处理的综合异常法研究[J]. J4, 2012, 20(4): 67-70.
[15] 王恩敬,郭广军,赵荣欣,王彦伟,于晓杰,吕广耀,王伟涛. 山东寺庄金矿床构造—矿化网络结构研究及应用[J]. J4, 2012, 20(4): 76-80.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
No Suggested Reading articles found!