河南嵩县前河金矿石英热释光研究
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摘要
河南省嵩县前河金矿位于华北克拉通南缘金-多金属矿产丰富的熊耳山地区。区域地层由太古界太华群变质岩基底和中元古界熊耳群火山岩及新生界盖层组成;中元古代熊耳群安山岩和燕山期花岗质侵入岩、火山岩广泛发育;近东西向和北北东向的区域断裂控制着金等矿床的产出。
石英的热释光(热发光)特征作为石英的矿物学标型,是金矿研究的一个重要方面。本课题对构造破碎带蚀变岩型金矿床矿体及围岩中石英进行热发光测试,并对所得数据进行定量分析,利用热发光垂直纵投影图,结合金品位垂直纵投影图,找寻在此类金矿床中石英的热发光与矿体分布的空间关系,并进一步研究本区石英热发光的发光机理。在前河金矿四号带成矿期构造破碎带中采集石英样品进行热释光测试分析,根据不同发光峰类型分类测试数据,进行矿物学填图,并与金品位垂直等值线图做对比,之后分析了石英的微量元素和流体包裹体成分特征。得到结论:(1)石英热释光峰强高值区与主矿化体的侧伏趋势一致;较低的高值线在200m标高80勘探线和84勘探线两处向下延伸,预示深部再现其高值的可能性。(2)石英热发光峰强与微量元素含量呈正相关关系。石英280~320℃发光峰与Al~(3+)-O-空穴心有关,240-245℃发光峰与电子心Ti~(3+)-M~+有关,这是本区石英热发光特征的特殊性。(3)石英流包裹体的液相成分主要为Cl~-、SO_4~(2-)、Na~+、Ca~(2+),少量F~-、K~+、Mg~(2+);气相成分主要为CH_4、H_2O、C_2H_6、H_2S、CO_2,少量N_2和Ar。属于NaCl-H_2O体系,主成矿流体来源为大气水。石英包裹体丰度与其热发光峰强呈正相关关系。(4)由碳酸盐热发光特征得出的深部矿体预测位置与石英热发光预测结果相符。
综上所述,通过对石英热发光特征,石英微量元素,石英流体包裹体和碳酸盐热发光特征的分析研究,对前河金矿的石英矿物学特征及其深部预测工作做了初步的尝试,得出了有益的结论。
The Qianhe gold deposits lied in Songxian, Henan Province, located Xiong’erShan area, by the south edge of North China Craton holding abundant gold and other metal deposits. The strata are composed of Archeozoic Taihua group, middle-proterozoic Xiong’er group and Cenozoic group. The Proterozoic volcanic and Yanshan granites are well developed in Xiong’erShan area; and nearly E-W and NNE trending regional fractures greatly dominated the gold deposits.
As a character of mineralogy, the thermoluminescence of quartz is a important part in the study of gold mine. In this task, the thermoluminescence of quartzs had been tested in both the deposite and the wall rock, the deposi belong to the fracture-altered rock type. And we looked for the interspace connection by the thermoluminescence of quartzs and the distributing of deposits by the plumb projection maps made of these data, and made a study in the mechanism of thermoluminescence.The quartzs samples was collected from the zone-4 of Qianhe deposite in the fracture-altered rock. We made mineralogy maps based on the different types of the thermoluminescence, contrasted them with the isoline maps of gold grade. We also analysed the microelement and the the composition of fluid inclusions of quartzs. Conclusion: (1)The high apices areas of the thermoluminescence and the main deposites have the same current in direction. The high apices lines at the 20080 and 20084 areas have a direction to deep side. Made the reappearance of the high apices areas in deep feasible. (2)The apices of the thermoluminescence of quartzs have a positive correlativity with the content of microelement of quartz. The cavity center Al3+-O- of quartz lie on the apices of thermoluminescence from 280℃to 320℃,the electron center Ti~(3+)-M~+ lie on the apices of thermoluminescence from 240℃to 245℃.These are the characters of the quartzs of Qianhe deposites. (3)The liquid compositions of fluid inclusions of quartzs are Cl~-、SO_4~(2-)、Na~+、Ca~(2+),and less F~-、K~+、Mg~(2+); the gas compositions of fluid inclusions of quartzs are CH4、H2O、C2H6、H_2S、CO_2,and less N_2 and Ar. It belongs to NaCl-H_2O system, the main source of the mineralization fluid come from the atmosphere water. The consistency of inclusion of quartzs have a positive correlativity with the apices of the thermoluminescence of quartzs. (4)The thermoluminescence of carbonates have the same result with the thermoluminescence of quartzs in forecast of the places of deposites in deep side.
To sum up, we have had a abecedarian study on the mineralogical characters of quartz of Qianhe gold deposites by the analyses of the thermoluminescence of quartzs, the microelement of quartzs, the composition of fluid inclusions of quartzs, and the thermoluminescence of carbonate. We also made some usefull conclusions at last.
石英的热释光(热发光)特征作为石英的矿物学标型,是金矿研究的一个重要方面。本课题对构造破碎带蚀变岩型金矿床矿体及围岩中石英进行热发光测试,并对所得数据进行定量分析,利用热发光垂直纵投影图,结合金品位垂直纵投影图,找寻在此类金矿床中石英的热发光与矿体分布的空间关系,并进一步研究本区石英热发光的发光机理。在前河金矿四号带成矿期构造破碎带中采集石英样品进行热释光测试分析,根据不同发光峰类型分类测试数据,进行矿物学填图,并与金品位垂直等值线图做对比,之后分析了石英的微量元素和流体包裹体成分特征。得到结论:(1)石英热释光峰强高值区与主矿化体的侧伏趋势一致;较低的高值线在200m标高80勘探线和84勘探线两处向下延伸,预示深部再现其高值的可能性。(2)石英热发光峰强与微量元素含量呈正相关关系。石英280~320℃发光峰与Al~(3+)-O-空穴心有关,240-245℃发光峰与电子心Ti~(3+)-M~+有关,这是本区石英热发光特征的特殊性。(3)石英流包裹体的液相成分主要为Cl~-、SO_4~(2-)、Na~+、Ca~(2+),少量F~-、K~+、Mg~(2+);气相成分主要为CH_4、H_2O、C_2H_6、H_2S、CO_2,少量N_2和Ar。属于NaCl-H_2O体系,主成矿流体来源为大气水。石英包裹体丰度与其热发光峰强呈正相关关系。(4)由碳酸盐热发光特征得出的深部矿体预测位置与石英热发光预测结果相符。
综上所述,通过对石英热发光特征,石英微量元素,石英流体包裹体和碳酸盐热发光特征的分析研究,对前河金矿的石英矿物学特征及其深部预测工作做了初步的尝试,得出了有益的结论。
The Qianhe gold deposits lied in Songxian, Henan Province, located Xiong’erShan area, by the south edge of North China Craton holding abundant gold and other metal deposits. The strata are composed of Archeozoic Taihua group, middle-proterozoic Xiong’er group and Cenozoic group. The Proterozoic volcanic and Yanshan granites are well developed in Xiong’erShan area; and nearly E-W and NNE trending regional fractures greatly dominated the gold deposits.
As a character of mineralogy, the thermoluminescence of quartz is a important part in the study of gold mine. In this task, the thermoluminescence of quartzs had been tested in both the deposite and the wall rock, the deposi belong to the fracture-altered rock type. And we looked for the interspace connection by the thermoluminescence of quartzs and the distributing of deposits by the plumb projection maps made of these data, and made a study in the mechanism of thermoluminescence.The quartzs samples was collected from the zone-4 of Qianhe deposite in the fracture-altered rock. We made mineralogy maps based on the different types of the thermoluminescence, contrasted them with the isoline maps of gold grade. We also analysed the microelement and the the composition of fluid inclusions of quartzs. Conclusion: (1)The high apices areas of the thermoluminescence and the main deposites have the same current in direction. The high apices lines at the 20080 and 20084 areas have a direction to deep side. Made the reappearance of the high apices areas in deep feasible. (2)The apices of the thermoluminescence of quartzs have a positive correlativity with the content of microelement of quartz. The cavity center Al3+-O- of quartz lie on the apices of thermoluminescence from 280℃to 320℃,the electron center Ti~(3+)-M~+ lie on the apices of thermoluminescence from 240℃to 245℃.These are the characters of the quartzs of Qianhe deposites. (3)The liquid compositions of fluid inclusions of quartzs are Cl~-、SO_4~(2-)、Na~+、Ca~(2+),and less F~-、K~+、Mg~(2+); the gas compositions of fluid inclusions of quartzs are CH4、H2O、C2H6、H_2S、CO_2,and less N_2 and Ar. It belongs to NaCl-H_2O system, the main source of the mineralization fluid come from the atmosphere water. The consistency of inclusion of quartzs have a positive correlativity with the apices of the thermoluminescence of quartzs. (4)The thermoluminescence of carbonates have the same result with the thermoluminescence of quartzs in forecast of the places of deposites in deep side.
To sum up, we have had a abecedarian study on the mineralogical characters of quartz of Qianhe gold deposites by the analyses of the thermoluminescence of quartzs, the microelement of quartzs, the composition of fluid inclusions of quartzs, and the thermoluminescence of carbonate. We also made some usefull conclusions at last.
引文
[1] 白凤军.嵩县小公峪金矿区构造蚀变岩型金矿的基本特征与找矿标志. 有色金属矿产与勘察,1999,8(6):493-497
[2] 陈光远,孙岱生,殷辉安.成因矿物学与找矿矿物学,重庆:重庆出版社,1987
[3] 陈天虎. 浙江治岭头金矿石英热释光研究.安徽地质,2000,10(1):29-34
[4] 段存基. 河南嵩县萑香洼金矿床断裂构造控矿特征. 地质调查与研究, 2004, 27(4):261-267
[5] 丰成友,张连昌,姬金生等.东天山康古尔金矿床石英的矿物标型特征研究.矿物岩石,2000,20(1):24-29
[6] 范宏瑞,谢奕汉,郑学正等. 河南祁雨沟热液角砾岩体型金矿床成矿流体研究. 岩石学报,2000,16(4):559-563
[7] 范玲,王士元,廖有炜.冰长石的标型特征及其在金矿找矿中的标志作用.新疆大学学报(自然科学版),2002,19(2):148-150
[8] 黄菲,王建国,郑超,赵纯福. 烧锅营子金矿石英的化学成分和热发光特征.贵金属地质,1998,7(1):43-47
[9] 韩佳,卢新.卫天然冰洲石的热释光特性.固原师专学报(自然科学版),2005,26(3):21-24
[10] 龚革联,王璐.岩石矿物的热释光生长特性与地质探矿意义. 核电子学与探测技术,2004,24(5):469-451
[11] 刘福来.佳木斯地块金矿石英的热释发光与含金性.岩石矿物学杂志,1996,15(4):316-322
[12] 李莉,卿敏,陈祥.河南前河金矿床地球化学特征.黄金地质,1999,5(3):75-80
[13] 李胜荣,陈光远,邵伟,等.胶东乳山金矿田成因矿物学,北京:地质出版社,1993
[14] 李胜荣,邵克忠.河南嵩县祁雨沟金矿床石英流体包裹体标型.现代地质,1991,5(4):415-422
[15] 卢欣祥,尉向东,董有等.小秦岭-熊耳山地区金矿特征与地幔流体[M].北京:地质出版社,2004,1-107
[16] 宁静,张建,郭勇,王军良.热释光发光曲线分析.辐射防护,2002,22(4):219-224
[17] 彭人勇. 江西黄沙金矿床石英与金矿化关系研究. 黄金地质,2001,7(1):7-12
[18] 齐金忠,马占荣,李莉.河南祁雨沟金矿床成矿流体演化特征.黄金地质,2004,10(4):1-10
[19] 谭文娟,魏俊浩,郭大招等. 石英脉型金矿床的成矿流体研究及思考. 地质与资源, 2005, 14(3):227-231
[20] 王可勇,卢作祥,廖群山. 石英热发光强度填图:脉金矿床深部成矿远景预测评价的新途径——以文峪金矿床研究为例.地球学报,1995,20(2):184-189
[21] 王可勇,魏文芹,卢作祥. 石英热发光特征及其应用于金矿床定量预测模型研究. 长春科技大学学报,1998,27(3):278-273
[22] 王可勇,曹新志,卢作祥. 江西金山金矿床两类矿化及其石英热发光特征. 黄金地质,1999,5(3):48-54
[23] 王可勇. 石英热发光在枪马金矿床矿脉含金性评价中的应用. 地质与勘探,2000,36(1):37-39
[24] 王可勇,冯本智,孙丰月. 小秦岭地区脉金矿床找矿评价的石英矿物学标志及模型.矿物学报,2001, 21(1):43-48
[25] 王晓聆,孙淼. 石英的粒度对其前剂量热释光效应的影响.贵州大学学报(自然科学版),1998,15(3):202-204
[26] 徐九华,谢玉玲,刘建明等.小秦岭文峪—东闯金矿床流体包裹体的微量元素及成因意义. 地质与勘探, 2004, 40(4):1-6
[27] 席书锋,王成学,李群亮. 河南狮子庙金矿田矿床地质特征.黄金地质,2004, 10(1):29-32
[28] 阴翠珍. 撰山子金矿床石英的特征与含金性的关系. 太原理工大学学报,2002,33(3):314-317
[29] 杨吉,杨殿范.石英的热发光及其在地学中的应用.西安工程学院学报,2002,24(4):18-19
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[2] 陈光远,孙岱生,殷辉安.成因矿物学与找矿矿物学,重庆:重庆出版社,1987
[3] 陈天虎. 浙江治岭头金矿石英热释光研究.安徽地质,2000,10(1):29-34
[4] 段存基. 河南嵩县萑香洼金矿床断裂构造控矿特征. 地质调查与研究, 2004, 27(4):261-267
[5] 丰成友,张连昌,姬金生等.东天山康古尔金矿床石英的矿物标型特征研究.矿物岩石,2000,20(1):24-29
[6] 范宏瑞,谢奕汉,郑学正等. 河南祁雨沟热液角砾岩体型金矿床成矿流体研究. 岩石学报,2000,16(4):559-563
[7] 范玲,王士元,廖有炜.冰长石的标型特征及其在金矿找矿中的标志作用.新疆大学学报(自然科学版),2002,19(2):148-150
[8] 黄菲,王建国,郑超,赵纯福. 烧锅营子金矿石英的化学成分和热发光特征.贵金属地质,1998,7(1):43-47
[9] 韩佳,卢新.卫天然冰洲石的热释光特性.固原师专学报(自然科学版),2005,26(3):21-24
[10] 龚革联,王璐.岩石矿物的热释光生长特性与地质探矿意义. 核电子学与探测技术,2004,24(5):469-451
[11] 刘福来.佳木斯地块金矿石英的热释发光与含金性.岩石矿物学杂志,1996,15(4):316-322
[12] 李莉,卿敏,陈祥.河南前河金矿床地球化学特征.黄金地质,1999,5(3):75-80
[13] 李胜荣,陈光远,邵伟,等.胶东乳山金矿田成因矿物学,北京:地质出版社,1993
[14] 李胜荣,邵克忠.河南嵩县祁雨沟金矿床石英流体包裹体标型.现代地质,1991,5(4):415-422
[15] 卢欣祥,尉向东,董有等.小秦岭-熊耳山地区金矿特征与地幔流体[M].北京:地质出版社,2004,1-107
[16] 宁静,张建,郭勇,王军良.热释光发光曲线分析.辐射防护,2002,22(4):219-224
[17] 彭人勇. 江西黄沙金矿床石英与金矿化关系研究. 黄金地质,2001,7(1):7-12
[18] 齐金忠,马占荣,李莉.河南祁雨沟金矿床成矿流体演化特征.黄金地质,2004,10(4):1-10
[19] 谭文娟,魏俊浩,郭大招等. 石英脉型金矿床的成矿流体研究及思考. 地质与资源, 2005, 14(3):227-231
[20] 王可勇,卢作祥,廖群山. 石英热发光强度填图:脉金矿床深部成矿远景预测评价的新途径——以文峪金矿床研究为例.地球学报,1995,20(2):184-189
[21] 王可勇,魏文芹,卢作祥. 石英热发光特征及其应用于金矿床定量预测模型研究. 长春科技大学学报,1998,27(3):278-273
[22] 王可勇,曹新志,卢作祥. 江西金山金矿床两类矿化及其石英热发光特征. 黄金地质,1999,5(3):48-54
[23] 王可勇. 石英热发光在枪马金矿床矿脉含金性评价中的应用. 地质与勘探,2000,36(1):37-39
[24] 王可勇,冯本智,孙丰月. 小秦岭地区脉金矿床找矿评价的石英矿物学标志及模型.矿物学报,2001, 21(1):43-48
[25] 王晓聆,孙淼. 石英的粒度对其前剂量热释光效应的影响.贵州大学学报(自然科学版),1998,15(3):202-204
[26] 徐九华,谢玉玲,刘建明等.小秦岭文峪—东闯金矿床流体包裹体的微量元素及成因意义. 地质与勘探, 2004, 40(4):1-6
[27] 席书锋,王成学,李群亮. 河南狮子庙金矿田矿床地质特征.黄金地质,2004, 10(1):29-32
[28] 阴翠珍. 撰山子金矿床石英的特征与含金性的关系. 太原理工大学学报,2002,33(3):314-317
[29] 杨吉,杨殿范.石英的热发光及其在地学中的应用.西安工程学院学报,2002,24(4):18-19
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