贵州黔东南坑头蚀变岩型金矿的发现及意义
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摘要
坑头金矿位于贵州黔东南金矿带,前人对该金矿带石英脉型金矿进行了广泛研究,认为深部可能有蚀变岩型金矿存在,但都未证实。近期经综合研究,在坑头金矿施工钻孔发现坑头金矿的深部存在蚀变岩型矿体,含金量最高达6. 65 g/t。蚀变岩型金矿矿石中金的赋存状态以裂隙金为主,主要载金矿物为毒砂。硅化蚀变及断层与金矿化关系密切,金矿体位于硅化蚀变发育的构造破碎带中。目前,黔东南金矿的开采目标多为300 m以浅的石英脉型金矿体,因此该发现对黔东南地区金矿深部勘查工作具有重要意义。
Kengtou gold deposit is located in Southeastern Guizhou Gold Belt. Previous workers have made extensive research on quartz vein gold deposits in this Gold Belt,and it is thought that there may be gold deposits of altered rock type in the depth. Nonetheless,it has not been proved. Recently,through comprehensive research,Altered rock type gold ore bodies have been found in the depth of Kengtou gold deposit by drilling,and the gold content in ore bodies reaches up to 6.65 g/t. The gold ore bodies are hosted by silicified altered tuffaceous slate with the gold occured as native gold in fissures within arsenopyrite grains. Silicification alteration and faulting are closely related to gold mineralization,and the gold ore bodies are located in the tectonic fracture zones where silicified alteration developed. At present,the gold mining objects of Southeast Guizhou gold are mainlyquartz veins gold ore bodies which are mostly less 300 m in depth. Therefore,this discovery is of great significance for gold exploration in the depth of the southeast Guizhou.
Kengtou gold deposit is located in Southeastern Guizhou Gold Belt. Previous workers have made extensive research on quartz vein gold deposits in this Gold Belt,and it is thought that there may be gold deposits of altered rock type in the depth. Nonetheless,it has not been proved. Recently,through comprehensive research,Altered rock type gold ore bodies have been found in the depth of Kengtou gold deposit by drilling,and the gold content in ore bodies reaches up to 6.65 g/t. The gold ore bodies are hosted by silicified altered tuffaceous slate with the gold occured as native gold in fissures within arsenopyrite grains. Silicification alteration and faulting are closely related to gold mineralization,and the gold ore bodies are located in the tectonic fracture zones where silicified alteration developed. At present,the gold mining objects of Southeast Guizhou gold are mainlyquartz veins gold ore bodies which are mostly less 300 m in depth. Therefore,this discovery is of great significance for gold exploration in the depth of the southeast Guizhou.
引文
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Groves D I,Goldfarb R J,Robert F,et al.2003.Gold deposits in metamorphic belts:overview of current understanding,outstanding problems,future research,and exploration significance.Economic geology,98(1),1-29.
Groves D I,Goldfarb R J,Gebre-Mariam M,et al.1998.Orogenic gold deposits:a proposed classification in the context of their crustal distribution and relationship to other gold deposit types.Ore geology reviews,13(1-5),7-27.
Morey A A,Tomkins A G,Bierlein F P,et al.2008.Bimodal distribution of gold in pyrite and arsenopyrite:examples from the Archean Boorara and Bardoc shear systems,Yilgarn Craton,Western Australia.?Economic Geology,?103(3),599-614.
Oberthür T,Weiser T,Amanor J A,et al.1997.Mineralogical siting and distribution of gold in quartz veins and sulfide ores of the ashanti mine and other deposits in the ashanti belt of ghana:genetic implications.Mineralium Deposita,32(1),2-15.
陈.2015.黔东南天柱一锦屏地区金的成矿系统及其结构[D].中国地质大学(北京)博士学位论文,1-55.
陈原林,顾尚义,何兴华,等.2017.测定江南造山带西南缘坑头金矿黄铁矿中LA-ICP-MS微量元素特征[J].贵州地质,34(3):183-190.
程元路,张均.2014.黔东南天柱-锦屏地区断控型与褶控型蚀变岩型金矿矿化特征及前景浅析[J].矿床地质,(s1):669-670.
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黎应书,秦德先,普传杰,等.2004.黔东南地区金矿地质和地球化学特征[J].昆明理工大学学报(自然科学版),29(3):5-8.
李纪.2017.黔东南天柱-锦屏地区石英脉型金矿床成矿作用研究[D].贵州大学硕士学位论文,1-70.
刘坤,杨瑞东,陶平.2015.黔东南石英脉型金矿床地球化学及成矿作用研究[M].贵阳:贵州科技出版社,1-161.
刘锐,李克庆,陈坡,等.2015.贵州天柱坑头金矿矿床地球化学研究[J].有色金属文摘,30(3):66-68.
刘锐,陶平,陈坡.2013.黔东南坑头金矿床元素地球化学特征与成矿意义[M].贵州大学学报(自然科学版),30(3):56-62.
卢焕章,王中刚,陈文一,等.2006.贵州东南部浊积岩中金矿的地质特征和成因[J].矿床地质,25(4):369-387.
卢焕章,王中刚,吴学益,等.2005.贵州东南部的地质构造与金矿床的关系[J].地质学报,79(1),98-105.
马思根,杨峰,王晓琼,等.2017.黔东南地区蚀变岩型金矿床地质特征及找矿方向分析[J].世界有色金属,19(1):10-110.
丘元禧,张渝昌,马文璞.1999.雪峰山的构造性质与演化:一个陆内造山带的形成演化模式[M].北京:地质出版社,49-99.
陶平.2012.黔东南天柱-锦屏-黎平地区金矿构造控矿模式与找矿方向[D].中国地质大学(武汉),1-180.
田洪德,黄道光,余清平.2011.黔东南天柱县坑头金矿地质特征及成因分析[J].贵州地质,28(4):265-272.
王亮,陶平.2012.应用1:200000区域重磁资料推断贵州东部地区隐伏岩体[J].物探化探计算技术,34(4):449-454.
王尚彦,陶平,戴传固,等.2006.贵州东部金矿[M].北京:地质出版社,1-179.
王尚彦,张立新,陶平,等.2006.贵州东部石英脉型金矿地质特征和成矿作用[J].贵州地质,23(1),36-43.
吴学益,卢焕章,王中刚,等.2009.黔东南金矿构造控矿与成矿模拟实验[J].矿物学报,29(2),253-258.
叶大元,张瑞蓉.1991.湘黔地区内生金矿分布规律的探讨[J].贵州工业大学学报:自然科学版,3(1):10-16.
余大龙,周珍国,陶红.1991.黔东金头金矿矿床地质及包裹体特征初探[J].贵州地质,10(3):241-240.
张传昱,邢程,陈曹军.2015.黔东南地区金矿床成矿模式及找矿远景[J].地质与勘探,51(4),690-698.
张杰,余大龙,张先煜,等.1998.贵州天柱磨山-油麻坳金矿化带岩石矿物地球化学研究[J].地质与勘探,34(2):30-36.
张晓东,杨瑞东,王伟,等.2011.黔东南平秋金矿微量与稀土元素地球化学特征及意义[J].矿物岩石,31(1):63-69.
Groves D I,Goldfarb R J,Robert F,et al.2003.Gold deposits in metamorphic belts:overview of current understanding,outstanding problems,future research,and exploration significance.Economic geology,98(1),1-29.
Groves D I,Goldfarb R J,Gebre-Mariam M,et al.1998.Orogenic gold deposits:a proposed classification in the context of their crustal distribution and relationship to other gold deposit types.Ore geology reviews,13(1-5),7-27.
Morey A A,Tomkins A G,Bierlein F P,et al.2008.Bimodal distribution of gold in pyrite and arsenopyrite:examples from the Archean Boorara and Bardoc shear systems,Yilgarn Craton,Western Australia.?Economic Geology,?103(3),599-614.
Oberthür T,Weiser T,Amanor J A,et al.1997.Mineralogical siting and distribution of gold in quartz veins and sulfide ores of the ashanti mine and other deposits in the ashanti belt of ghana:genetic implications.Mineralium Deposita,32(1),2-15.
陈.2015.黔东南天柱一锦屏地区金的成矿系统及其结构[D].中国地质大学(北京)博士学位论文,1-55.
陈原林,顾尚义,何兴华,等.2017.测定江南造山带西南缘坑头金矿黄铁矿中LA-ICP-MS微量元素特征[J].贵州地质,34(3):183-190.
程元路,张均.2014.黔东南天柱-锦屏地区断控型与褶控型蚀变岩型金矿矿化特征及前景浅析[J].矿床地质,(s1):669-670.
戴传固,张慧,王敏,等.2010.江南造山带西南段地质构造特征及演化[M].北京:地质出版社.
何立贤,曾若兰,林立青.1993.贵州金矿地质[M].北京:地质出版社,1-141.
黎应书,秦德先,普传杰,等.2004.黔东南地区金矿地质和地球化学特征[J].昆明理工大学学报(自然科学版),29(3):5-8.
李纪.2017.黔东南天柱-锦屏地区石英脉型金矿床成矿作用研究[D].贵州大学硕士学位论文,1-70.
刘坤,杨瑞东,陶平.2015.黔东南石英脉型金矿床地球化学及成矿作用研究[M].贵阳:贵州科技出版社,1-161.
刘锐,李克庆,陈坡,等.2015.贵州天柱坑头金矿矿床地球化学研究[J].有色金属文摘,30(3):66-68.
刘锐,陶平,陈坡.2013.黔东南坑头金矿床元素地球化学特征与成矿意义[M].贵州大学学报(自然科学版),30(3):56-62.
卢焕章,王中刚,陈文一,等.2006.贵州东南部浊积岩中金矿的地质特征和成因[J].矿床地质,25(4):369-387.
卢焕章,王中刚,吴学益,等.2005.贵州东南部的地质构造与金矿床的关系[J].地质学报,79(1),98-105.
马思根,杨峰,王晓琼,等.2017.黔东南地区蚀变岩型金矿床地质特征及找矿方向分析[J].世界有色金属,19(1):10-110.
丘元禧,张渝昌,马文璞.1999.雪峰山的构造性质与演化:一个陆内造山带的形成演化模式[M].北京:地质出版社,49-99.
陶平.2012.黔东南天柱-锦屏-黎平地区金矿构造控矿模式与找矿方向[D].中国地质大学(武汉),1-180.
田洪德,黄道光,余清平.2011.黔东南天柱县坑头金矿地质特征及成因分析[J].贵州地质,28(4):265-272.
王亮,陶平.2012.应用1:200000区域重磁资料推断贵州东部地区隐伏岩体[J].物探化探计算技术,34(4):449-454.
王尚彦,陶平,戴传固,等.2006.贵州东部金矿[M].北京:地质出版社,1-179.
王尚彦,张立新,陶平,等.2006.贵州东部石英脉型金矿地质特征和成矿作用[J].贵州地质,23(1),36-43.
吴学益,卢焕章,王中刚,等.2009.黔东南金矿构造控矿与成矿模拟实验[J].矿物学报,29(2),253-258.
叶大元,张瑞蓉.1991.湘黔地区内生金矿分布规律的探讨[J].贵州工业大学学报:自然科学版,3(1):10-16.
余大龙,周珍国,陶红.1991.黔东金头金矿矿床地质及包裹体特征初探[J].贵州地质,10(3):241-240.
张传昱,邢程,陈曹军.2015.黔东南地区金矿床成矿模式及找矿远景[J].地质与勘探,51(4),690-698.
张杰,余大龙,张先煜,等.1998.贵州天柱磨山-油麻坳金矿化带岩石矿物地球化学研究[J].地质与勘探,34(2):30-36.
张晓东,杨瑞东,王伟,等.2011.黔东南平秋金矿微量与稀土元素地球化学特征及意义[J].矿物岩石,31(1):63-69.