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现代地质 ›› 2018, Vol. 32 ›› Issue (01): 66-76.DOI: 10.19657/j.geoscience.1000-8527.2018.01.06

• 矿床学与矿物学 • 上一篇    下一篇

新疆西准噶尔提依尔金矿黄铁矿热电性与微量元素特征及其地质意义

余文林1(), 葛文胜2(), 廖华3, 胡卫星2, 卢树东4, 刘旭2, 李磊5, 王全乐4   

  1. 1.江西省地质环境监测总站,江西 南昌 330095
    2.中国地质大学(北京) 地球科学与资源学院,北京 100083
    3.江西应用技术职业学院,江西 赣州 341000
    4.中国黄金集团地质有限公司,北京 100011
    5.托里县金福黄金矿业有限责任公司,新疆 塔城 834500
  • 收稿日期:2017-06-25 修回日期:2017-09-14 出版日期:2018-02-10 发布日期:2018-02-05
  • 通讯作者: 葛文胜,男,副教授,1968年出生,矿物学、岩石学、矿床学专业,主要从事矿床学与地球化学方面的研究。Email:gews@cugb.edu.cn
  • 作者简介:葛文胜,男,副教授,1968年出生,矿物学、岩石学、矿床学专业,主要从事矿床学与地球化学方面的研究。Email:gews@cugb.edu.cn
    余文林,男,硕士,1991年出生,矿物学、岩石学、矿床学专业,主要从事矿床学与地球化学方面的研究。Email:wenlinyu2614@163.com
  • 基金资助:
    中国黄金地质有限公司项目“新疆托里县提依尔金矿床成矿规律及找矿预测研究”(ZKY2015/05)

Thermoelectricity and Trace Element Characteristics of Pyrites from Tiyier Gold Deposit in West Junggar, Xinjiang and Their Geological Significance

YU Wenlin1(), GE Wensheng2(), LIAO Hua3, HU Weixing2, LU Shudong4, LIU Xu2, LI Lei5, WANG Quanle4   

  1. 1. Jiangxi Station of Geo-environment Monitoring, Nanchang,Jiangxi 330095, China
    2. School of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, China
    3. Jiangxi College of Applied Technology, Ganzhou,Jiangxi 341000, China
    4. China National Gold Group Co.Ltd., Beijing 100011,China
    5. Tuoli Jinfu Mining Co.Ltd., Tacheng, Xinjiang 834500, China
  • Received:2017-06-25 Revised:2017-09-14 Online:2018-02-10 Published:2018-02-05

摘要:

黄铁矿是提依尔金矿主要的载金矿物,其标型特征的研究对深部找矿具有重要的指示意义。从矿物学和矿物地球化学角度系统研究黄铁矿热电性和微量元素组合特征,结果表明,黄铁矿导电类型以P-N混合型为主,P型黄铁矿出现率从浅部到深部有逐渐升高的趋势,结合各钻孔金品位垂向变化,可知P型黄铁矿出现率与金品位高值区呈正相关关系,且与矿体侧伏方向一致,预示矿体向深部有一定的延伸;成矿温度主要集中在100~330 ℃之间,属于中低温热液矿床;黄铁矿微量元素(As+Sb+Se+Te、Cu+Pb+Zn和Ti+Ni+Co+Cr)纵投影等值线图显示,250 m标高以下,0、1号勘探线之间往NW方向找矿潜力良好。获得的黄铁矿标型特征对于提依尔金矿床深部找矿具有重要指导意义。

关键词: 黄铁矿, 热电性, 微量元素, 提依尔金矿, 西准噶尔

Abstract:

Pyrite is the main gold-bearing mineral in Tiyier gold deposit, the typomorphic characteristics of which is of great significance to deep prospecting. In this paper, the thermoelectricity and trace element characteristics of pyrite were systematically studied from the perspective of mineralogy and mineral geochemistry. The results show that the conductivity type of pyrite is mainly P-N hybrid type, and the occurrence rate of P-type pyrite gradually increases from the shallow to the deep part. Combining the vertical change of gold grade of different drilling, it is well known that the occurrence rate of P-type pyrite is positively correlated with the high gold grade. Moreover, the occurrence rate of P-type pyrite is consistent with the direction of lateral volts of orebody, which indicates that the ore body has some extension to the deep part. The ore-forming temperatures range from 100 to 330 ℃, which belong to epithermal deposit. The vertical projection contours of trace elements (As+Sb+Se+Te, Cu+Pb+Zn and Ti+Ni+Co+Cr) from pyrite show that the great prospecting potential existed under -250 m elevation between exploration line 1 and line 2 to northwest. Given the above, the typomorphic characteristics of the pyrite are significant for deep gold prospecting in the Tiyier gold deposit.

Key words: pyrite, thermoelectricity, trace element, Tiyier gold deposit, West Junggar

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