Discussions on Reliability of the Decrepitation Technique Applied in Fluid Inclusion Studies:Taking the Jiangxi Dajishan Tungsten Deposit as An Example

Abstract

Abstract:

As a prospecting method, acoustic decrepitation technique could provide a rapid and simple mean of identifying the barren and mineralized quartz veins. However, the method has not gained routine acceptance and development because of its semi-quantitative nature and possible difficulties in decrepigram interpretation. In order to discuss the reliability of the decrepitation technique, microthermometry is applied to determine the decrepitation temperature of fluid inclusions in quartz samples collected from Dajishan tungsten deposit in Jiangxi Province. The microthermometry data indicate that the decrepitated temperature is anti-related with the size of fluid inclusions and the decrepitated peak in decrepigram is overlapped by decrepitation of all these three types of fluid inclusions. The results show that the decrepitation technique is reliable in exploration applications and should be used widely.

Key words: Dajishan tungsten deposit, fluid inclusion, decrepitation technique, decrepitated peak, microthermometry, exploration

CLC Number:

P611

XU Wen-Gang ZHANG De-Hui XI Bin-Bin ZHANG Wen-Huai SHI Niang-Hua. Discussions on Reliability of the Decrepitation Technique Applied in Fluid Inclusion Studies:Taking the Jiangxi Dajishan Tungsten Deposit as An Example[J]. Geoscience, 2008, 22(5): 757-765.

References

\[1\]Roedder E Fluid Inclusions \[M\]//Ribbe P H. Reviews in Mineralogy. Blacksburg: Mineralogical Society of America, 1984：1-644.

\[2\]卢焕章，范宏瑞，倪培，等. 流体包裹体\[M\]. 北京：科学出版社，2004.

\[3\]Shepherd T J, Rankin A H, Alderton D H M. A Practical Guide to Fluid Inclusion Studies \[M\]. New York：Blackie, 1985.

\[4\]Sami A G Partamies, Matti A J Poutiainen. Application of acoustic fluid inclusion decrepitometry to gold exploration in Finland \[J\]. Geochemistry: Exploration, Environment, Analysis, 2001,1:109-117.

\[5\]Mavrogenes J A, Bodnar R J. Comparison of decrepitation, microthermometric and compositional characteristics of fluid inclusions in barren and auriferous mesothermal quartz veins of Cowra Creek Gold District, New South Wales, Australia \[J\]. Journal of Geochemical Exploration, 1995,54:167-175.

\[6\]Burlinson K. Decrepitation in gold exploration. A case history from the Cotan prospect, N.T. \[J\]. Journal of Geochemical Exploration, 1991,42:143-156.

\[7\]谢奕汉，李秉伦，王金辉，等. 高性能爆裂仪在金矿找矿中的应用\[J\]. 黄金科技动态:找矿方法，1989（3）：15-17.

\[8\]李昌存，韩秀丽，邹继兴. 栾木场金矿石英流体包裹体及成矿预测\[J\]. 矿物岩石，1999（1）：55-57.

\[9\]周师立. 爆裂法测温中几个问题的探讨\[J\]. 江苏地质，1988（1）：51-54.

\[10\]周师立. 论矿物解理、裂隙对爆裂法测温的影响和全岩爆裂曲线的意义\[J\]. 江苏地质，1988（3）：51-55.

\[11\]张文淮. 流体包裹体地质学\[M\]. 武汉：中国地质大学出版社, 1993.

\[12\]席斌斌. 江西省全南县大吉山钨矿成矿流体地球化学特征及成矿预测\[D\]. 北京：中国地质大学（北京），2007.

\[13\]施娘华. 江西省全南县大吉山钨矿床流体包裹体爆裂法初步研究\[D\]. 北京：中国地质大学（北京）,2007.

\[14\]卢焕章. 华南钨矿成因\[M\]. 重庆：重庆出版社，1986.

\[15\]陈毓川，裴荣富，张宏良，等. 南岭地区与中生代花岗岩有关的有色及稀有金属矿床地质\[M\]. 北京：地质出版社，1999.

\[16\]曹钟清. 大吉山钽铌钨矿床地质特征及找矿模型\[J\]. 地质与勘探，2004，40（6）：34-37.

\[17\]Bodnar R J. Synthetic fluid inclusionsVI. Quantitative evaluation of the decrepitation behaviour of fluid inclusion in quartz at one atmosphere confining pressure \[J\]. Journal of Metamorphic Geology, 1989,7:229-242.

\[18\]Bakker R J. Package FLUIDS 1. Computer programs for analysis of fluid inclusion data and for modeling bulk fluid properties \[J\]. Chemical Geology,2003, 194:3-23.

[1]	WANG Qibo, ZHANG Shouting, TANG Li, LI Junjun, SHENG Yuanming. Genesis of Yangshan Fluorite Deposit in Western Henan Province: Fluorite REE Composition and Fluid Inclusion Thermomechanical Constraints [J]. Geoscience, 2023, 37(06): 1524-1537.
[2]	DU Jun, LIU Hongwei, CHANG Honglun. Experimental Study on Fluid Inclusion Synthesis in Plagioclase [J]. Geoscience, 2023, 37(06): 1634-1643.
[3]	LI Zhu, ZHANG Dehui, YANG Fan, LIU Xiangchong. Regional Geochemical Data Analysis Using Isometric Log-ratio Transformation and Mixture Distribution [J]. Geoscience, 2023, 37(03): 662-673.
[4]	ZOU Changchun, WANG Chengshan, PENG Cheng, WU Caowei, GAO Yuan. Development of the Chinese Continental Scientific Deep Drilling: Perspectives and Suggestions [J]. Geoscience, 2023, 37(01): 1-14.
[5]	CHEN Shiming, YANG Zhenxi, LEI Ziqiang, KANG Weiliang, ZHANG Jing, ZHAO Qinghu. Geochemical Characteristics and Prospecting on Stream Sediment Survey in Qianhongquan Area of Beishan in Gansu Province, China [J]. Geoscience, 2022, 36(06): 1513-1524.
[6]	LIU Yongbiao, LI Shengye, ZHAO Jichang, FAN Xinxiang, YANG Zhenxi, CHEN Haiyun. Ore Prospecting Effect of Cuttage Survey in Weak Anomaly Area of Stream Sediment Survey in Beishan, Gansu Province:Taking the Discovery of Heishannan Gold Mine in Yanchi as An Example [J]. Geoscience, 2022, 36(06): 1525-1537.
[7]	LIAN Chenqin, YAO Fojun, FENG Zhiming, YANG Jianmin, JIA Xiangxiang. Mineral Resources Prospecting by Synthetic Application of Multi-Source Data in the Shanyangba Area, Gansu, China [J]. Geoscience, 2022, 36(06): 1605-1612.
[8]	SUN Ziming, BIAN Changrong, ZHANG Rongqiang, SUN Wei, WU Chongyang, LIN Juanhua. Natural Gas Exploration Prospect of the Platform Marginal Zone of the Fourth Member of Sinian Dengying Formation in Southeastern Sichuan Basin [J]. Geoscience, 2022, 36(04): 979-987.
[9]	REN Xiaoqing, YU Hong, LUO Naning, LI Chaomin, WANG Qiyu. Application of CSAMT in Geothermal Exploration in Hui’an, Fujian Province [J]. Geoscience, 2022, 36(02): 515-523.
[10]	WANG Ruiting, JI Yuefei, CHENG Huan, LIU Kai, ZHANG Qi, LI Xian, REN Tao. Metallogenic Regularities and Future Prospecting Direction of Gold-Copper Deposits in the Zhashui-Shanyang Orefield, Southern Qinling Orogen [J]. Geoscience, 2021, 35(06): 1487-1503.
[11]	GUO Yuncheng, LIU Jiajun, YIN Chao, GUO Mengxu. Geological Characteristics and Ore-forming Fluids of the Dahu Au-Mo Deposit in Xiaoqinling Gold Field [J]. Geoscience, 2021, 35(06): 1536-1550.
[12]	WANG Chao, WANG Ruiting, LIU Yunhua, XUE Yushan, HU Xishun, NIU Liang. Fluid Inclusion and C-H-O-S Stable Isotopic Studies of Sanguanmiao Gold Deposit, Shangnan, Shaanxi Province [J]. Geoscience, 2021, 35(06): 1551-1564.
[13]	CHANG Ming, LIU Jiajun, YANG Yongchun, ZHAI Degao, ZHOU Shuming, WANG Jianping. Fluid Inclusion Study of the Lu'erba Au Deposit in Gansu Province: Discussion on Fluid Evolution and Metallogenic Mechanism [J]. Geoscience, 2021, 35(06): 1576-1586.
[14]	SUN Kang, CAO Yi, ZHANG Wei, ZHAO Yang. Geology and Fluid Inclusions of the Tongkuangli Molybdenum Polymetallic Deposit in Qingyang Area, Anhui Province, China [J]. Geoscience, 2021, 35(05): 1371-1379.
[15]	HAO Peng, YANG Jilei, ZHANG Xudong, ZANG Chunyan, CHEN Rongtao, WANG Bo, SHUI Leilei, WANG Sihui, CAI Tao. Mechanism of Differential Oil-gas Distribution in the Steep-slope Zone (Northwestern Margin of Bozhong Sag): Evidence from Reconstruction of Hydrocarbon Accumulation [J]. Geoscience, 2021, 35(04): 1124-1135.