埃塞俄比亚北部VMS型铜多金属矿快速勘查方法
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摘要
海外风险勘查中,快速有效的勘查方法组合是初级勘查项目取得成功的关键因素。本文以埃塞俄比亚北部VMS型铜多金属矿床找矿为例,介绍该区海外快速勘查方法组合。从区域已知矿床地质背景研究到不同比例尺遥感填图—地质填图—岩相填图,总结与成矿密切相关的地层、岩浆岩、构造标志、蚀变和矿化标志;通过不同比例尺的水系沉积物、土壤和岩石地球化学测量,在勘查中快速锁定靶区;通过激发极化法(IP)、重力测量(Gravity Survey)及电磁测量(EM)的地球物理特征确定矿体的埋深、形态及侧伏方向等参数;通过钻探工作,建立矿床的三维地质模型、矿体模型,估算铜多金属资源量,为下一步矿床开发提供资源保障。
Among overseas venture prospecting,rapid and efficient exploration methods combination is the key to success for junior prospecting projects. As the example of prospecting for VMS type of Cu polymetallic deposit in northern Ethiopia,this paper mainly introduces the following rapid exploration methods. To establish stratigraphic,structural,magmatic,alteration and mineralization marks closed related to ore-forming,from research on geological background of known deposits in the region to remote sensing mapping-geological mapping-lithofacies mapping of different scales. To rapid delineate the prospecting targets by sediment,soil and rock geochemical survey of different scales. To determine the parameters of depth,shape and plunging of the ore-body by IP,gravity and EM geophysical survey. To set up the geology and ore-body 3D models,by borehole drilling so as to estimate Cu polymetallic resources,which provides the metal resources for the deposit mining in the future.
Among overseas venture prospecting,rapid and efficient exploration methods combination is the key to success for junior prospecting projects. As the example of prospecting for VMS type of Cu polymetallic deposit in northern Ethiopia,this paper mainly introduces the following rapid exploration methods. To establish stratigraphic,structural,magmatic,alteration and mineralization marks closed related to ore-forming,from research on geological background of known deposits in the region to remote sensing mapping-geological mapping-lithofacies mapping of different scales. To rapid delineate the prospecting targets by sediment,soil and rock geochemical survey of different scales. To determine the parameters of depth,shape and plunging of the ore-body by IP,gravity and EM geophysical survey. To set up the geology and ore-body 3D models,by borehole drilling so as to estimate Cu polymetallic resources,which provides the metal resources for the deposit mining in the future.
引文
Allan Trench and David Groves.2015.The Western Arabian-Nubian Shield:A rapidly emerging gold province.SEG newsletter,101:1-16.
Archibald,S.M.,Martin C.and Thomas D.G.,2014.NI43-101 Technical Report on a Mineral Resource Estimate at theTerakimti Prospect,Harvest Property(centred at 38°21’E,14°19’N)[R].Tigray National Region,Ethiopia:Prepared for Tigray Resources Inc..
Barrie C T,Nielsen F W,Aussant C H.2007.The Bisha Volcanic-Associated Massive Sulfide Deposit,Western Nakfa Terrane,Eritrea[J].Economic Geology,102(4):717-738.
Bouabdellah,M.and Slack,J.F..2016.Mineral deposits of North Africa[M].Cham,Switzerland:Springer International Publishing.
J BruceGemmell.Ross R large and Khin Zaw.1998.Palaeozoic volcanic-hosted massive sulphide deposits[J].AGSO Journal of Australian Geology&Geophysics,17(4):129-137.
P.R.Johnson,B.A.Zoheir,W.Ghebreab,etc.2017.Gold-bearing Volcanogenic Massive Sulfides and Orogenic-gold Deposits in the Nubian Shield[J].South African Journal of Geologys,120(1):63-76.
S Abraham,BKonka,S Gebreselassie.2015.Geology of volcanogenic massive sulfide deposit near Meli,northwestern Tigray,northern E-thiopia[J].Momona Ethiopian Journal of Science,7(1):85-104.
Tadesse T,Hoshino M,Suzuko K,et al.2000.Sm-Nd,Rb-Sr and Th-U-Pb zircon ages of syn-and post-tectonic granitoids from the Axum area of northern Ethiopia[J].Journal of African Earth Sciences,30(2):313-327.
代晶晶.2012.埃塞俄比亚西部岩浆熔离型铁矿遥感找矿模型[J].遥感技术与应用,27(3):380-386.
方维萱,郭玉乾.2009.基于风险分析的商业性找矿预测新方法与应用[J].地学前缘,16(02):209-226.
甘凤伟.2011埃塞俄比亚北部VMS型铜锌金矿床地质地球化学特征研究[D].贵阳:中国科学院地球化学研究所(贵阳).
韩世礼.2013.埃塞俄比亚施瑞地区VMS型矿床成矿机制及成矿规律研究[D].长沙:中南大学.
贾大成,穆宏玉,姜琦刚,等.2017.玻利维亚优势矿种成矿带划分和基于遥感地质解译的找矿预测[J].地质通报,36(12):2322-2331.
景亮兵,秦秀峰,朱思才,等.2011.便携式元素分析仪在埃塞俄比亚特拉喀密提VMS型矿床勘查中的应用[J].矿产勘查,2(6):795-799.
李向民,彭礼贵,任有祥.2003.白银厂式块状硫化物矿床找矿突破的反思[J],西北地质,36(2):77-82.
刘海鹏,蒋世军,鹿志忠,等.2017.部阿迪布拉达VMS型铜多金属矿成矿特征与找矿标志[J].矿产勘查,8(1):148-160.
刘海鹏,鹿志忠.2017.埃塞俄比亚北部阿斯格德地区地球化学异常特征与找矿意义[J].矿产勘查,8(4):682-690.
刘益康.2006.商业性矿产勘查七大运作程序[J].山东国土资源.22(11):1-2.
秦秀峰,朱思才,景亮兵,等.2012.厄立特里亚碧沙VMS铜锌金矿床勘查与发现[J].矿产勘查,3(02):266-269.
王晨昇,袁庞,熊靓辉,等.2016.埃塞俄比亚北部特拉喀密提VMS型铜锌多金属矿床地质特征与找矿标志[J].矿产勘查,7(1):203-213.
王京彬,杨玲玲.2011.境外上市初级资源公司的并购与运作-Canaco公司的案例[J].矿产勘查,2(1):11-16.
王京彬,朱思才,甘凤伟,等.2015.埃塞俄比亚北部施瑞地区VMS型铜锌金矿床地质特征、成矿规律和找矿预测研究[R].北京:中色金地资源科技有限公司.
熊靓辉,李调丽,郭雷.2015.埃塞俄比亚北东部地区遥感找矿预测研究[J].中国矿山工程,24(增刊1):295-309.
熊靓辉,李调丽,郭雷.2017.遥感技术在厄立特里亚南部科纳迪地区优选找矿靶区中的应用[J].矿产勘查,8(1):165-171.
杨自安,朱谷昌,梁静,等.2014.智利阿塔卡马区斑岩铜矿带遥感战略选区研究[J].矿产勘查,5(02):376-383.
于彩虹,李庆哲,祁亚辉,等.2015.中高空间分辨率多光谱遥感数据在坦桑尼亚鲁夸地区找矿预测中的应用[J].矿产勘查,6(04):478-486.
余飞燕,朱思才,秦秀峰,等.2011.埃塞俄比亚北部地区特瑞VMS型铜锌矿床三维模拟及资源量估算[J].矿产勘查,2(2):181-188.
张树根,丁俊,韩世礼,等.2013.埃塞俄比亚施瑞地区VMS型矿床成矿机制及成矿规律研究[R].长沙:中南大学.
Archibald,S.M.,Martin C.and Thomas D.G.,2014.NI43-101 Technical Report on a Mineral Resource Estimate at theTerakimti Prospect,Harvest Property(centred at 38°21’E,14°19’N)[R].Tigray National Region,Ethiopia:Prepared for Tigray Resources Inc..
Barrie C T,Nielsen F W,Aussant C H.2007.The Bisha Volcanic-Associated Massive Sulfide Deposit,Western Nakfa Terrane,Eritrea[J].Economic Geology,102(4):717-738.
Bouabdellah,M.and Slack,J.F..2016.Mineral deposits of North Africa[M].Cham,Switzerland:Springer International Publishing.
J BruceGemmell.Ross R large and Khin Zaw.1998.Palaeozoic volcanic-hosted massive sulphide deposits[J].AGSO Journal of Australian Geology&Geophysics,17(4):129-137.
P.R.Johnson,B.A.Zoheir,W.Ghebreab,etc.2017.Gold-bearing Volcanogenic Massive Sulfides and Orogenic-gold Deposits in the Nubian Shield[J].South African Journal of Geologys,120(1):63-76.
S Abraham,BKonka,S Gebreselassie.2015.Geology of volcanogenic massive sulfide deposit near Meli,northwestern Tigray,northern E-thiopia[J].Momona Ethiopian Journal of Science,7(1):85-104.
Tadesse T,Hoshino M,Suzuko K,et al.2000.Sm-Nd,Rb-Sr and Th-U-Pb zircon ages of syn-and post-tectonic granitoids from the Axum area of northern Ethiopia[J].Journal of African Earth Sciences,30(2):313-327.
代晶晶.2012.埃塞俄比亚西部岩浆熔离型铁矿遥感找矿模型[J].遥感技术与应用,27(3):380-386.
方维萱,郭玉乾.2009.基于风险分析的商业性找矿预测新方法与应用[J].地学前缘,16(02):209-226.
甘凤伟.2011埃塞俄比亚北部VMS型铜锌金矿床地质地球化学特征研究[D].贵阳:中国科学院地球化学研究所(贵阳).
韩世礼.2013.埃塞俄比亚施瑞地区VMS型矿床成矿机制及成矿规律研究[D].长沙:中南大学.
贾大成,穆宏玉,姜琦刚,等.2017.玻利维亚优势矿种成矿带划分和基于遥感地质解译的找矿预测[J].地质通报,36(12):2322-2331.
景亮兵,秦秀峰,朱思才,等.2011.便携式元素分析仪在埃塞俄比亚特拉喀密提VMS型矿床勘查中的应用[J].矿产勘查,2(6):795-799.
李向民,彭礼贵,任有祥.2003.白银厂式块状硫化物矿床找矿突破的反思[J],西北地质,36(2):77-82.
刘海鹏,蒋世军,鹿志忠,等.2017.部阿迪布拉达VMS型铜多金属矿成矿特征与找矿标志[J].矿产勘查,8(1):148-160.
刘海鹏,鹿志忠.2017.埃塞俄比亚北部阿斯格德地区地球化学异常特征与找矿意义[J].矿产勘查,8(4):682-690.
刘益康.2006.商业性矿产勘查七大运作程序[J].山东国土资源.22(11):1-2.
秦秀峰,朱思才,景亮兵,等.2012.厄立特里亚碧沙VMS铜锌金矿床勘查与发现[J].矿产勘查,3(02):266-269.
王晨昇,袁庞,熊靓辉,等.2016.埃塞俄比亚北部特拉喀密提VMS型铜锌多金属矿床地质特征与找矿标志[J].矿产勘查,7(1):203-213.
王京彬,杨玲玲.2011.境外上市初级资源公司的并购与运作-Canaco公司的案例[J].矿产勘查,2(1):11-16.
王京彬,朱思才,甘凤伟,等.2015.埃塞俄比亚北部施瑞地区VMS型铜锌金矿床地质特征、成矿规律和找矿预测研究[R].北京:中色金地资源科技有限公司.
熊靓辉,李调丽,郭雷.2015.埃塞俄比亚北东部地区遥感找矿预测研究[J].中国矿山工程,24(增刊1):295-309.
熊靓辉,李调丽,郭雷.2017.遥感技术在厄立特里亚南部科纳迪地区优选找矿靶区中的应用[J].矿产勘查,8(1):165-171.
杨自安,朱谷昌,梁静,等.2014.智利阿塔卡马区斑岩铜矿带遥感战略选区研究[J].矿产勘查,5(02):376-383.
于彩虹,李庆哲,祁亚辉,等.2015.中高空间分辨率多光谱遥感数据在坦桑尼亚鲁夸地区找矿预测中的应用[J].矿产勘查,6(04):478-486.
余飞燕,朱思才,秦秀峰,等.2011.埃塞俄比亚北部地区特瑞VMS型铜锌矿床三维模拟及资源量估算[J].矿产勘查,2(2):181-188.
张树根,丁俊,韩世礼,等.2013.埃塞俄比亚施瑞地区VMS型矿床成矿机制及成矿规律研究[R].长沙:中南大学.