Thermoelectric and Thermal Decrepitation Characteristics of Pyrites from Jiapigou Gold Ore Belt, Jilin Province

Abstract

Abstract:

According to the thermoelectric and thermal decrepitation characteristics of pyrites, the main gold-bearing minerals in the Jiapigou gold ore belt, this article determins the main metallogenic epoch as well as the mineralization types of each epoch and discusses the possibility of prospecting to the deep. Pyrites are mainly electric conductivity Ntype, with only a few hole-core P-type. Thermoelectric coefficient of N-type counts from -347.3 to -6.2 μV·℃-1, and that of P-type from 17.4 to 193.5 μV·℃-1; mineralizing temperature centers on 258.8 to 319.2 ℃; denudation rate lies between 50.260% and 50.485%. Decrepitation curves reflect that the mineralization of medium-low temperature (＜280 ℃) is poorer than that of high temperature (＞290 ℃). The comprehensive research shows that the mineralization of Jiapigou gold ore belt includes the early high-temperature epoch (-120 μV·℃-1 of thermoelectric coefficient and 320 ℃ of mineralizing temperature) and the late medium-low-temperature-epoch (-210 μV·℃-1 of thermoelectric coefficient and 270 ℃ of mineralizing temperature). The former includes both quartz vein-type and alteration mineralizations, developing both where orebody trends parallel and intersect with the main Jiapigou fault. The later comprises of quartz vein-type mineralization, superposites on the former and occurs just where the orebody trend intersects with the main Jiapigou fault. The high-temperature hydrothermal mineralization epoch is the main one. However, mineralization of multi-stage superposition is enhanced.

Key words: Jiapigou gold ore belt, pyrite, thermoelectricity, decrepitation curve, metallogenic epoch

CLC Number:

P578.2⁺92

ZHANG Yu, YUAN Wan-Ming, WANG Qing-Fei, LIU Xiang-Wei, MA Nan, ZHAO Kai. Thermoelectric and Thermal Decrepitation Characteristics of Pyrites from Jiapigou Gold Ore Belt, Jilin Province[J]. Geoscience, 2010, 24(5): 870-879.

References

［1］Hill P A, Green R. Thermoelectricity and resistivity of pyrite from Renison Bell and MT Bischoff, Tasmania \
[J\]. Economic Geology, 1962, 57: 579-586.
［2］李红兵，曾凡治. 金矿中的黄铁矿标型特征 \
[J\]. 地质找矿论丛，2005，20(3)：199-203.
［3］陈光远，孙岱生，殷辉安. 成因矿物学与找矿矿物学\
[M\]. 重庆：重庆出版社，1987：302-307.
［4］高浩中，蔡新平，张宝林，等. 黄铁矿的诸多特征与金矿化\
[J\]. 黄金科学技术，1999，7(3)：10-14.
［5］孙国胜，初凤友，胡瑞忠，等. 我国主要金矿类型中黄铁矿“电子-空穴心”特征及影响因素\
[J\]. 矿物学报，2004，24(3)：211-217.
［6］卢焕章，范宏瑞，倪培，等. 流体包裹体\
[M\]. 北京：科学出版社，2004: 186-195.
［7］王莉娟，朱和平，王敏. 爆裂法测温在矿床地质上的应用\
[J\]. 地质与勘探，2007，43(5)：88-91.
［8］谢奕汉，李秉伦. 造岩矿物中气液包裹体热爆测温的可靠性\
[J\]. 岩石学研究，1983(2)：117-124.
［9］李秉伦，谢奕汉，王英兰. 根据矿物中包裹体的研究对玢岩铁矿的新认识\
[J\]. 矿床地质，1983(2)：25-30.
［10］谢奕汉，王英兰. 小秦岭含金石英脉中包裹体的热爆曲线特征及其找矿意义\
[J\]. 岩石学报，1989(4)：15-21.
［11］Deng J, Yang L Q, Gao B F, et al. Fluid evolution and metallogenic dynamics during tectonic regime transition: Example from the Jiapigou gold belt in Northeast China \
[J\]. Resource Geology, 2009, 59(2): 140-152.
［12］程玉明，李俊建，沈保丰. 吉辽地区绿岩带金矿成矿找矿模式\
[M\]. 北京：地震出版社，1996：1-243.
［13］沈保丰，李俊建，毛德宝，等. 吉林夹皮沟金矿地质与成矿预测\
[M\]. 北京：地质出版社，1998：1-175.
［14］邓军，翟裕生，杨立强，等. 论剪切带构造成矿系统\
[J\]. 现代地质，1998，12(4)：493-500.
［15］邓军，杨立强，孙忠实，等. 剪切带构造成矿动力机制与模式\
[J\]. 现代地质，1999，13(2)：125-129.
［16］金昌珍. 吉林夹皮沟地区金矿成矿模式及找矿模式\
[M\]∥国际金矿地质与勘探学术会议组织委员会．国际金矿地质与勘探学术会议论文集．沈阳：东北工学院出版社，1989：258-261.
［17］翟裕生，苗来成，向运川，等. 华北克拉通绿岩带型金矿成矿系统初析\
[J\]. 地球科学: 中国地质大学学报，2002，27(5)：522-531.
［18］邓军，杨立强，孙忠实，等. 矿源系统地质-地球化学例析\
[J\]. 现代地质，2000，14(2)：165-172.
［19］翟裕生，王建平，邓军，等. 成矿系统时空演化及其找矿意义\
[J\]. 现代地质，2008，22(2)：143-150.
［20］要梅娟，申俊峰，李胜荣，等. 河南嵩县前河金矿黄铁矿的热电性、热爆特征及其与金矿化关系\
[J\]. 地质通报，2008，27(5)：649-656.
［21］侯满堂. 陕西镇安太白庙金矿黄铁矿热电性特征研究及其应用\
[J\]. 黄金，2000，21(7)：5-10.

[1]	HU Shengping, HAN Shanchu, ZHANG Hongqiu, ZHANG Yong, PAN Jiayong, ZHONG Fujun, LU Jianyan, LI Weixin. Trace Element Geochemistry and Its Metallogenic Implications of the Pyrite from the Xiwan Pb-Zn Deposit in Luzong Basin, Anhui [J]. Geoscience, 2024, 38(01): 183-197.
[2]	RAN Xiaoyu, MA Yao, LIANG Yayun, LIU Xuefei. Trace Elements Composition of Pyrites in the Cangshang Gold Deposit,Jiaodong: Implications for Source of Ore-forming Fluid and Material [J]. Geoscience, 2023, 37(06): 1495-1508.
[3]	LI Yujie, LI Shengrong, YUAN Maowen. Thermoelectric Characteristics of Pyrite from the Fengning Ag Polymetallic Deposit, Hebei Province and Its Implications [J]. Geoscience, 2023, 37(02): 463-474.
[4]	XUE Yushan, CUN Xiaoni, LIU Xinwei, HU Xishun. The Source of Ore-forming Material in the Longtougou Gold Metallogenic Belt of South Qinling: Evidence from Element and Sulfur Isotopic Composition [J]. Geoscience, 2020, 34(05): 1077-1091.
[5]	LIU Yihao, XUE Chunji, ZHAO Yun, ZHAO Xiaobo, CHU Haixia, LIU Chengxian, YU Liang, WANG Lu, WU Dehai. Research on Auriferous Pyrite in Hydrothermal Gold Deposits, China [J]. Geoscience, 2020, 34(01): 1-12.
[6]	GUO Linnan, HUANG Chunmei, ZHANG Liang, CHEN Binghan, LI Ruihong, LIU Yue. Source of Ore-forming Fluids in the Luoshan Gold Deposit, Jiaodong: Constrains from REE and Trace Element Features of Auriferous Pyrite in the Altered-rock Type and Auriferous Quartz Vein Type Ores [J]. Geoscience, 2019, 33(01): 121-136.
[7]	PANG Zong, WANG Gongwen, ZHANG Shuai, GUO Dongwei, CHEN Linjie, XIE Jiayu. Geological-Geochemical Modeling and Deep Exploration of Jiaochong Au Deposit in Tongling District of Anhui Province [J]. Geoscience, 2018, 32(02): 344-356.
[8]	YU Wenlin, GE Wensheng, LIAO Hua, HU Weixing, LU Shudong, LIU Xu, LI Lei, WANG Quanle. Thermoelectricity and Trace Element Characteristics of Pyrites from Tiyier Gold Deposit in West Junggar, Xinjiang and Their Geological Significance [J]. Geoscience, 2018, 32(01): 66-76.
[9]	DONG Haowei, WANG Licheng, LIU Chenglin, WEI Yushuai, WANG Yanlu, BO Ying. Genesis of Euhedral Pyrites in the Upper Cretaceous Mengyejing Formation in Simao Basin, Yunnan and Its Geological Significance [J]. Geoscience, 2018, 32(01): 77-85.
[10]	JIA Wenjuan，WANG Gongwen，HAN Jiangwei，YAN Changhai，SONG Yaowu，. Thermoelectric Characteristics and Metallogenic Regularity of Pyrite in Yuku Molybdenum Deposit, Luanchuan,Henan [J]. Geoscience, 2016, 30(6): 1209-1218.
[11]	. Study on Occurrences of Gold and Silver, and Typomorphism of Pyrite in the Zijinshan Ore Field, Fujian Province [J]. Geoscience, 2016, 30(2): 303-315.
[12]	XU Jie-hui1, GE Wen-sheng1，XING De-chao2，CHEN Xiao-dong1，SONG Wen-jie2，YU Wen-li. Thermoelectric Characteristics and Trace Element Characteristics of Pyrite from Kangguer Gold Deposit in Eastern Tianshan of Xinjiang and Its Geological Significance [J]. Geoscience, 2015, 29(3): 542-552.
[13]	LIU Kun，LIU Jia-jun，WU Jie，LIU Chong-hao，YANG Shang-song，XIN Xiao-jun，LI Yuan. Thermoelectric Characteristic of Pyrites from No.8 Orebody of the Mawu Gold Deposit in Gansu Province and Its Significance [J]. Geoscience, 2014, 28(4): 711-720.
[14]	GENG Xin-xia, ZUO Wen-zhe, CHEN Feng-he, JIANG Guo-hao, ZHANG Zhi-xin. Helium and Argon Isotopes Tracing of Ore-forming Fluid in the Suoerkuduke Cu-Mo Deposit in the Northern Margin of Junggar, Xinjiang [J]. Geoscience, 2014, 28(2): 331-338.
[15]	KONG De-xin1，YIN Jing-wu1，HU Jian-zhong1，LI Jiao1，GUO Yuan1，. Research on the Mineralogical Characteristics of Metallic Mineral and Mineralization of Huajian Gold Deposit，Eastern Hebei Province [J]. Geoscience, 2013, 27(4): 847-858.