矿物地球化学勘查方法在鄂东南地区深部找矿中的初步应用
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摘要
矿物地球化学勘查是目前国际上新兴的矿产勘查方法之一,主要运用于斑岩型和浅成低温热液矿床以及火山成因块状硫化物矿床(VMS)中,而在其它类型矿床中运用较少。鄂东南地区是中国东部著名的矽卡岩型铜铁金成矿密集的大型矿集区,区内产有铜绿山、鸡冠咀、程潮、铁山、铜山口、金山店、阮家湾等大型矽卡岩矿床。简要介绍铜绿山铜铁金矿床和鸡冠咀铜金矿床近年来的深部勘查进展,通过野外钻孔岩芯编录、蚀变矿物SWIR填图及光谱特征参数以及绿泥石化学成分组成等研究,初步建立铜绿山矿床和鸡冠咀矿床的新矿物勘查标志体系,并初步应用于铜绿山矿区深部矿体的勘查和验证工作,取得了良好的效果,认为在鄂东南地区大型矿区深部和边部,沿着有利的控矿构造部位,特别是矽卡岩化和粘土矿化蚀变增强的空间位置仍具有较大找矿潜力。
The Mineral Geochemical Exploration(MGE) is one of the burgeoning ore exploration methods in the world.It is mainly used in the porphyry-and epithermal deposits and volcanogenic massive sulfide(VMS) deposits,but less applied in the other types of deposit. The Edongnan area is a famous large-scale ore district with concentrated Cu,Fe and Au skarn mineralization in eastern China. Large scales skarn deposits such as Tonglvshan,Jiguanzui,Chengchao,Tieshan,Tongshankou,Jinshandian and Ruanjiawan etc. are occurred. In this study,it mainly introduced the deeping exploration progress at the Tonglvshan Cu-Fe-Au deposit and Jiguanzui Cu-Au deposit in the recent years,then,through the study of field drilling core cataloging,altered mineral SWIR mapping and spectral characteristic parameters of alteration minerals and chemical composition of chlorite,the authors initially applied it to the exploration and verification of the deep ore bodies in the Tonglvshan mining area and achieved good results. In the Edongnan area,it has still a large potential for prospecting in the deep and marginal areas of the large skarn deposit,especially along the favorable ore-controlling structure and the spatial position with intensive skarn and clay alteration.
The Mineral Geochemical Exploration(MGE) is one of the burgeoning ore exploration methods in the world.It is mainly used in the porphyry-and epithermal deposits and volcanogenic massive sulfide(VMS) deposits,but less applied in the other types of deposit. The Edongnan area is a famous large-scale ore district with concentrated Cu,Fe and Au skarn mineralization in eastern China. Large scales skarn deposits such as Tonglvshan,Jiguanzui,Chengchao,Tieshan,Tongshankou,Jinshandian and Ruanjiawan etc. are occurred. In this study,it mainly introduced the deeping exploration progress at the Tonglvshan Cu-Fe-Au deposit and Jiguanzui Cu-Au deposit in the recent years,then,through the study of field drilling core cataloging,altered mineral SWIR mapping and spectral characteristic parameters of alteration minerals and chemical composition of chlorite,the authors initially applied it to the exploration and verification of the deep ore bodies in the Tonglvshan mining area and achieved good results. In the Edongnan area,it has still a large potential for prospecting in the deep and marginal areas of the large skarn deposit,especially along the favorable ore-controlling structure and the spatial position with intensive skarn and clay alteration.
引文
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[3] Cooke D R,Baker M J,Hollings P,et al. New advances in detecting the distal geochemical footprints of porphyry systems-epidote mineral chemistry as a tool for vectoring and fertility assessments[J]. Economic Geology,Special Publication,2014(18):127-152.
[4]张世涛,陈华勇,张小波,等.短波红外光谱技术在矽卡岩型矿床中应用:以鄂东南铜绿山铜铁金矿床为例[J].矿床地质,2017,36(6):1263-1288.
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[6]许超,陈华勇,Noel WHITE,等.福建紫金山矿田西南铜钼矿段蚀变矿化特征及SWIR勘查应用研究[J].矿床地质,2017,36(5):1013-1038.
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[8] Wilkinson J J,Chang Z,Cooke D R,et al. The chlorite proximitor:A new tool for detecting porphyry ore deposits[J]. Journal of Geochemical Exploration,2015(152):10-26.
[9] Xiao B,Chen H Y,Wang Y F,et al. Chlorite,epidote chemistry of the Yandong Cu deposit,NW China:Metallogenic,exploration implications for Paleozoic porphyry Cu systems in the Eastern Tianshan[J]. Ore Geology Reviews,2017(100):168-182.
[10]常印佛,刘湘培,吴言昌.长江中下游铜铁成矿带[M].北京:地质出版社,1991:1-396.
[11]毛景文,邵拥军,谢桂青,等.长江中下游成矿带铜陵矿集区铜多金属矿床模型[J].矿床地质,2009,28(2):109-119.
[12]周涛发,范裕,袁峰,等.长江中下游成矿带地质与矿产研究进展[J].岩石学报,2012,28(10):3051-3066.
[13] Mao J W,Xie G Q,Duan C,et al. A tectono-genetic model for porphyry-skarn-stratabound Cu–Au–Fe and magnetite–apatite deposit along the Middle-Lower Yangtze River Valley,Eastern China[J]. Ore Geology Reviews,2011,43(1):294-314.
[14]周涛发,王世伟,袁峰,等.长江中下游成矿带陆内斑岩型矿床的成岩成矿作用[J].岩石学报,2016,32(2):271-288.
[15]舒全安,陈培良,程建荣,等.鄂东铁铜矿产地质[M].北京:冶金工业出版社,1992:1-532.
[16] Xie G Q,Mao J W,Zhu Q Q,et al. Geochemical constraints on Cu–Fe and Fe skarn deposits in the Edong district,Middle-Lower Yangtze River metallogenic belt,China[J]. Ore Geology Reviews,2015,47(64):425-444.
[17]余元昌,李刚,肖国荃.湖北省大冶县铜绿山接触交代铜铁矿床[M].武汉:中国地质大学出版社,1985:1-151.
[18]刘继顺,马光,舒广龙.湖北铜绿山矽卡岩型铜铁矿床中隐爆角砾岩型金(铜)矿体的发现及其找矿前景[J].矿床地质,2005,24(5):527-536.
[19]颜代蓉.湖北阳新阮家湾钨—铜—钼矿床和银山铅—锌—银矿床地质特征及矿床成因[D].武汉:中国地质大学(武汉),2013:1-139.
[20]张世涛,陈华勇,韩金生,等.鄂东南铜绿山大型铜铁金矿床成矿岩体年代学、地球化学特征及成矿意义[J].地球化学,2018,47(3):240-256.
[21]谢桂青,赵海杰,赵财胜,等.鄂东南铜绿山矿田矽卡岩型铜铁金矿床的辉钼矿Re-Os同位素年龄及其地质意义[J].矿床地质,2009,28(3):227-239.
[22]谢桂青,毛景文,李瑞玲,等.鄂东南地区大型矽卡岩型铁矿床金云母40Ar-39Ar同位素年龄及其构造背景初探[J].岩石学报,2008,24(8):1917-1927.
[23] Xie G Q,Mao J W,Zhao H J. Zircon U–Pb geochronological,Hf isotopic constraints on petrogenesis of later Mesozoic instrusions in the southeast Hubei Province, Middle-Lower Yangzte River belt(MLYRB),East China[J]. Lithos,2011(125):693-710.
[24] Zhao H J,Xie G Q,Wei K T,et al. Mineral compositions and fluid evolution of the Tonglushanskarn Cu–Fe deposit,SE Hubei,eastcentral China[J]. International geology reviews,2012,54(7):737-764.
[25]湖北省地质局第一地质大队.湖北省大冶市铜录山铜矿接替资源勘查(深部普查)报告[R].大冶:大冶有色金属公司,2010:1-115.
[26]湖北省地质局第一地质大队.鸡冠咀矿区、桃花嘴矿区深部铜金详查地质报告[R].大冶:湖北三鑫金铜股份有限公司,2014:1-180.
[27]胡清乐,金尚刚,魏克涛,等.湖北大冶铜绿山矿田深部找矿工作进展及下步找矿方向[J].资源环境与工程,2011,25(3):182-187.
[28]魏克涛,李享洲,张晓兰.铜绿山铜铁矿床成矿特征及找矿前景[J].资源环境与工程,2007,21(S1):41-56.
[29] Li J W,Deng X D,Zhou M F,et al. Laser ablation ICP-MS titanite UTh-Pb dating of hydrothermal ore deposits:A case study of the Tonglushan Cu-Fe-Au skarn deposit,SE Hubei Province,China[J].Chemical Geology,2010(270):56-67.
[30]杨志明,侯增谦,杨竹森,等.短波红外光谱技术在浅剥蚀斑岩铜矿区勘查中的应用:以西藏念村矿区为例[J].矿床地质,2012,31(4):699-717.
[31] Chang Z S,Yang Z M. Evaluation of inter-instrument variations among Short Wavelength Infrared(SWIR)devices[J]. Econ. Geol.,2012,107(7):1479-1488.
[2] Mc Intosh,S. The future of base metals exploration,in Looking to the future:what's next AMIRA International,8th Biennial Exploration Managers'Conference[M]. Yarra Valley:Victoria,2010.
[3] Cooke D R,Baker M J,Hollings P,et al. New advances in detecting the distal geochemical footprints of porphyry systems-epidote mineral chemistry as a tool for vectoring and fertility assessments[J]. Economic Geology,Special Publication,2014(18):127-152.
[4]张世涛,陈华勇,张小波,等.短波红外光谱技术在矽卡岩型矿床中应用:以鄂东南铜绿山铜铁金矿床为例[J].矿床地质,2017,36(6):1263-1288.
[5]杨志明,侯增谦,杨竹森,等.短波红外光谱技术在浅剥蚀斑岩铜矿区勘查中的应用:以西藏念村矿区为例[J].矿床地质,2012,31(4):699-717.
[6]许超,陈华勇,Noel WHITE,等.福建紫金山矿田西南铜钼矿段蚀变矿化特征及SWIR勘查应用研究[J].矿床地质,2017,36(5):1013-1038.
[7] Chang Z S,Hedenquist J W,White N C,et al. Exploration Tools for Linked Porphyry,Epithermal Deposits:Example from the Mankayan Intrusion-Centered Cu-Au District,Luzon,Philippines[J]. Economic Geology,2011(106):1365-1398.
[8] Wilkinson J J,Chang Z,Cooke D R,et al. The chlorite proximitor:A new tool for detecting porphyry ore deposits[J]. Journal of Geochemical Exploration,2015(152):10-26.
[9] Xiao B,Chen H Y,Wang Y F,et al. Chlorite,epidote chemistry of the Yandong Cu deposit,NW China:Metallogenic,exploration implications for Paleozoic porphyry Cu systems in the Eastern Tianshan[J]. Ore Geology Reviews,2017(100):168-182.
[10]常印佛,刘湘培,吴言昌.长江中下游铜铁成矿带[M].北京:地质出版社,1991:1-396.
[11]毛景文,邵拥军,谢桂青,等.长江中下游成矿带铜陵矿集区铜多金属矿床模型[J].矿床地质,2009,28(2):109-119.
[12]周涛发,范裕,袁峰,等.长江中下游成矿带地质与矿产研究进展[J].岩石学报,2012,28(10):3051-3066.
[13] Mao J W,Xie G Q,Duan C,et al. A tectono-genetic model for porphyry-skarn-stratabound Cu–Au–Fe and magnetite–apatite deposit along the Middle-Lower Yangtze River Valley,Eastern China[J]. Ore Geology Reviews,2011,43(1):294-314.
[14]周涛发,王世伟,袁峰,等.长江中下游成矿带陆内斑岩型矿床的成岩成矿作用[J].岩石学报,2016,32(2):271-288.
[15]舒全安,陈培良,程建荣,等.鄂东铁铜矿产地质[M].北京:冶金工业出版社,1992:1-532.
[16] Xie G Q,Mao J W,Zhu Q Q,et al. Geochemical constraints on Cu–Fe and Fe skarn deposits in the Edong district,Middle-Lower Yangtze River metallogenic belt,China[J]. Ore Geology Reviews,2015,47(64):425-444.
[17]余元昌,李刚,肖国荃.湖北省大冶县铜绿山接触交代铜铁矿床[M].武汉:中国地质大学出版社,1985:1-151.
[18]刘继顺,马光,舒广龙.湖北铜绿山矽卡岩型铜铁矿床中隐爆角砾岩型金(铜)矿体的发现及其找矿前景[J].矿床地质,2005,24(5):527-536.
[19]颜代蓉.湖北阳新阮家湾钨—铜—钼矿床和银山铅—锌—银矿床地质特征及矿床成因[D].武汉:中国地质大学(武汉),2013:1-139.
[20]张世涛,陈华勇,韩金生,等.鄂东南铜绿山大型铜铁金矿床成矿岩体年代学、地球化学特征及成矿意义[J].地球化学,2018,47(3):240-256.
[21]谢桂青,赵海杰,赵财胜,等.鄂东南铜绿山矿田矽卡岩型铜铁金矿床的辉钼矿Re-Os同位素年龄及其地质意义[J].矿床地质,2009,28(3):227-239.
[22]谢桂青,毛景文,李瑞玲,等.鄂东南地区大型矽卡岩型铁矿床金云母40Ar-39Ar同位素年龄及其构造背景初探[J].岩石学报,2008,24(8):1917-1927.
[23] Xie G Q,Mao J W,Zhao H J. Zircon U–Pb geochronological,Hf isotopic constraints on petrogenesis of later Mesozoic instrusions in the southeast Hubei Province, Middle-Lower Yangzte River belt(MLYRB),East China[J]. Lithos,2011(125):693-710.
[24] Zhao H J,Xie G Q,Wei K T,et al. Mineral compositions and fluid evolution of the Tonglushanskarn Cu–Fe deposit,SE Hubei,eastcentral China[J]. International geology reviews,2012,54(7):737-764.
[25]湖北省地质局第一地质大队.湖北省大冶市铜录山铜矿接替资源勘查(深部普查)报告[R].大冶:大冶有色金属公司,2010:1-115.
[26]湖北省地质局第一地质大队.鸡冠咀矿区、桃花嘴矿区深部铜金详查地质报告[R].大冶:湖北三鑫金铜股份有限公司,2014:1-180.
[27]胡清乐,金尚刚,魏克涛,等.湖北大冶铜绿山矿田深部找矿工作进展及下步找矿方向[J].资源环境与工程,2011,25(3):182-187.
[28]魏克涛,李享洲,张晓兰.铜绿山铜铁矿床成矿特征及找矿前景[J].资源环境与工程,2007,21(S1):41-56.
[29] Li J W,Deng X D,Zhou M F,et al. Laser ablation ICP-MS titanite UTh-Pb dating of hydrothermal ore deposits:A case study of the Tonglushan Cu-Fe-Au skarn deposit,SE Hubei Province,China[J].Chemical Geology,2010(270):56-67.
[30]杨志明,侯增谦,杨竹森,等.短波红外光谱技术在浅剥蚀斑岩铜矿区勘查中的应用:以西藏念村矿区为例[J].矿床地质,2012,31(4):699-717.
[31] Chang Z S,Yang Z M. Evaluation of inter-instrument variations among Short Wavelength Infrared(SWIR)devices[J]. Econ. Geol.,2012,107(7):1479-1488.