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(Click for frequent words.) 73 Athabasca basin 69 Athabasca Basin Saskatchewan 67 Quesnel Trough 65 Abitibi Greenstone Belt 64 volcanogenic massive sulphide VMS 64 volcanogenic massive sulphide 63 Labrador Trough 63 eastern Athabasca Basin 63 Abitibi greenstone belt 63 Sudbury Basin 63 Otish Basin 63 Tintina Gold Belt 62 Thompson Nickel Belt 62 Saskatchewan Athabasca Basin 61 greenstone belt 61 Copper Cobalt 61 Flin Flon Snow 61 VMS deposit 60 Ni Cu PGE 60 epithermal gold silver 60 greenstone belts 60 Superior Craton 60 Otish Mountains 60 McFauld Lake 60 Greenstone Belt 59 Volcanogenic Massive Sulphide 59 VMS deposits 59 Yilgarn Craton 59 Nechako Plateau 59 prolific Abitibi Greenstone Belt 59 diamondiferous kimberlites 59 Rare Earth Element REE 59 Thelon Basin 59 Woodjam 59 McClarty Lake 59 uranium mineralization 59 massive sulphide deposits 58 Kugruk 58 Ni Cu PGM 58 copper porphyry 58 Chukuni property 58 Uchi Subprovince 58 Flin Flon Greenstone Belt 58 Onaman 58 James Bay Lowlands 58 lode gold 58 Eskay Creek 58 Abitibi Greenstone belt 58 Toodoggone 58 polymetallic massive sulphide 58 Akasaba Mine 58 porphyry copper 58 Greenstone belt 58 Intrusive Complex 58 REE mineralization 58 Tintina gold 58 intrusives 58 Deseado Massif 58 Huxter Lane 58 Proterozoic age 58 Volcanogenic Massive Sulphide VMS 58 Rare Earth Element 58 favorable stratigraphy 57 Otish 57 Destor Porcupine Fault 57 Shining Tree 57 copper molybdenum 57 Shebandowan 57 Destor Porcupine Fault Zone 57 Tocantinzinho 57 REE deposit 57 Kechika Trough 57 copper platinum palladium 57 polymetallic deposit 57 Carbonatite Complex 57 bulk tonnage gold 57 Buffalo Ankerite 57 Lalor deposit 57 geologically favorable 57 uranium occurrences 57 Ni Cu 57 Hoidas Lake 57 Cu Ni PGE 57 Selwyn Basin 57 Uranium mineralization 57 unconformity type 57 Kwanika 57 Angilak Project 57 volcanic massive sulphide 57 porphyry deposits 57 gold copper porphyry 57 nickel sulphide deposits 57 Riou Lake 56 Meliadine West 56 Moly Brook 56 Hardrock Project 56 Estrades 56 Matagami Camp 56 McFaulds Lake 56 molybdenum tungsten 56 massive sulphide VMS 56 copper molybdenum porphyry 56 porphyries 56 Guiana Shield 56 Cu Au 56 Langmuir Township 56 Archean greenstone belt 56 radiometric anomalies 56 Cadillac Break 56 radiometric anomaly 56 Ni Cu PGE mineralization 56 Hoyle Pond 56 Cortez Trend 56 poly metallic 56 layered mafic 56 mafic ultramafic 56 IOCG 56 metallogenic 56 Carlin Trend 56 Dublin Gulch 56 Antimony Mountain 56 ultramafic mafic 56 Nemegosenda 56 Stikine Arch 56 Cassiar Moly 56 Tassawini 56 porphyry copper gold 56 Bombore 56 Timmins Ontario 56 Molybdenum Copper 56 Duparquet 55 Middle Cauca 55 nickel sulphide 55 VMS mineralization 55 Favourable Lake 55 Anatacau Wabamisk 55 epithermal vein 55 Eleonore gold 55 Carscallen Gold 55 polymetallic mineral 55 Sisson Brook 55 nickel copper 55 Ucore primary 55 Cluff Lake 55 epithermal gold 55 McNugget Property 55 Beardmore Geraldton Gold 55 Geologically 55 Jumping Josephine 55 stratabound 55 Meliadine 55 IOCG mineralization 55 Archean aged 55 Goldbanks 55 polymetallic 55 Matachewan 55 potentially open pittable 55 Mouchalagane 55 tungsten molybdenum 55 Casa Berardi Mine 55 mineral occurrences 55 volcanogenic massive sulfide VMS 55 low sulfidation 55 Lake greenstone belt 55 Fermont Iron Property 55 La Poma 55 Sunbeam Pettigrew 55 Marban Block 55 Wellgreen 55 Central Mineral Belt 55 Fancamp 55 Brookbank Gold 55 Opinaca reservoir 55 geophysical conductors 55 Snowbird Tectonic Zone 55 Shivee West 55 Gawler Craton 55 epithermal deposits 55 Pantanillo 55 Porphyry Copper Gold 55 conductive anomalies 55 Navidad Project 55 McFauld 55 Silica Ridge 55 Big Daddy chromite 54 bulk tonnage 54 porphyry 54 Hemlo 54 granodiorite intrusive 54 porphyry molybdenum 54 Brucejack 54 Mkuju River Project 54 Crackingstone 54 IOCG deposits 54 mineralized corridor 54 Goldpines North 54 nickel laterite 54 epithermal gold deposits 54 Éléonore 54 Goldcliff 54 F2 Zone 54 volcanogenic massive sulfide 54 niobium tantalum 54 La Blache 54 Bellechasse Chaudiere 54 Cariboo Gold 54 Kootenay Arc 54 Lachlan Fold Belt 54 Letitna 54 Selbaie 54 Purepoint 54 iron titanium vanadium 54 underexplored 54 multimillion ounce 54 sulphide nickel 54 Massive Sulphide 54 mineralized showings 54 Beluga sapphire property 54 epithermal precious metals 54 Au Cu 54 chromite deposits 54 Porcupine Destor Fault 54 epithermal gold targets 54 Ni Cu PGM mineralization 54 gold IOCG 54 Beardmore Geraldton gold 54 porphyry Cu Au 54 Abitex 54 orogenic gold 54 porphyry deposit 54 Broulan Reef property 54 Kena Property 54 epithermal veins 54 McFaulds Lake Property 54 Sachigo Greenstone Belt 54 Uranium Deposit 54 VTEM 54 Slave Craton 54 El Compas 54 nickel sulphide deposit 54 overlies 54 epithermal gold mineralization 54 unconformity mineralization 54 Mineralized Zone 54 Tulks 54 porphyry copper molybdenum 54 potash mineralization 54 Shining Tree gold 54 pegmatite 54 lithium brine 54 DPFZ 54 Falea 54 Wollaston Domain 54 Cuiu Cuiu 54 Ganarin 54 Swayze Greenstone Belt 54 Cyr Lithium 54 sparsely drilled 54 Leitch Sand River 54 Prospector Mountain 54 Goldbrook 54 mineralizing system 54 Larder Lake 54 Kenville Gold Mine 54 Tonkin Springs 54 Pinguino property 54 Rio Novo 54 prolific Carlin Trend 54 Huronian 54 massive sulphide 54 Shaft Zone 54 Klaza property 54 manganese mineralization 54 shear zone 54 Mineral Belt 53 gold mineralization 53 nickel PGM 53 molybdenum mineralization 53 Salta Province 53 metasedimentary rocks 53 South Tally Pond 53 coincident geochemical 53 Iron Titanium Vanadium 53 Mt Penck 53 Quartz Claims 53 Opinaca 53 Scadding Gold 53 Wapawekka Lake 53 Cu Zn Ag 53 surface bulk tonnage 53 dike swarm 53 breccia hosted 53 vanadium mineralization 53 Cadillac Larder Lake 53 Coldstream Property 53 Buffalo Ankerite Property 53 Yukon Territory 53 carbonatite complex 53 massive sulfide 53 Akasaba 53 Pequop 53 Fruta del Norte 53 Picachos 53 diamondiferous kimberlite 53 mineralized horizon 53 exploring mineral tenures 53 Uranium Mineralization 53 orogenic gold deposits 53 Boxey Point 53 gold porphyry 53 Muirs Reef 53 magmatic nickel copper 53 Eldor Project 53 Guayabales 53 Levack Footwall Deposit 53 PGM deposits 53 intrusive rocks 53 open pitable 53 Vanadium Titanium Iron 53 Timmins Kirkland 53 Montgolfier Project 53 deformation corridor 53 Tungsten Molybdenum 53 auriferous 53 Pontax 53 Nickel Copper 53 Kerr Sulphurets 53 Porcupine Destor Fault Zone 53 geophysical targets 53 Lake Greenstone Belt 53 copper molybdenum gold 53 Duparquet Gold 53 tungsten mineralization 53 #,# acre Angilak 53 Storie Property 53 felsic volcanics 53 Kabanga nickel 53 bulk minable gold 53 Bellechasse Timmins 53 Zafranal 53 shear zones 53 polymetalic 53 Tortigny deposit 53 low sulphidation epithermal 53 bulk mineable gold 53 Pidgeon Molybdenum Deposit 53 mineralization occurs 53 open pittable 53 Louvicourt 53 Magambazi 53 Cu Zn 53 El Creston molybdenum 53 Clay Howells 53 airborne geophysical anomalies 53 Assean Lake 53 carbonatite 53 Eskay Creek deposit 53 Berg copper molybdenum 53 Iron Oxide Copper 53 Vaquillas 53 Cordillera del Condor 53 Igneous Complex 53 Schefferville Quebec 53 alteration zones 53 Rare Metal 53 mafic ultramafic intrusions 53 Osisko Canadian Malartic 53 Troymet 53 Eskay Creek mine 53 bearing quartz veins 53 Claim Block 53 Goz Creek 53 Eureka Trend 53 low sulfidation epithermal 53 approximately #km# [001] 53 uraniferous 53 Copper Belt 53 Tortigny 53 Garrcon 53 Xstrata Nickel Raglan Mine 53 Forrestania 53 Amarc 52 Cariboo Mining 52 Carmacks Copper Gold 52 VTEM geophysical 52 Val d'Or Malartic 52 gossans 52 vein stockworks 52 epithermal precious 52 Strateco Matoush 52 Detailed mapping 52 granitic intrusions 52 Zona Alta 52 Asmara Project 52 El Quevar project 52 Zinc Copper 52 Wabassi 52 Batholith 52 Golouma 52 Timmins Mining 52 underground mineable 52 conductive zones 52 prolific Sierra Madre 52 Kinojevis 52 VMS Ventures 52 Kalemela 52 Kutcho 52 felsic rocks 52 Flume Ridge 52 polymetallic veins 52 generative exploration 52 Banded Iron Formation 52 magnetite mineralization 52 Yanfolila 52 REE deposits 52 Lithium Rare Metals 52 Lone Pine Property 52 Mactung 52 McFauld West 52 Tombstone Mining 52 Option Joint Venture 52 Titiribi 52 chromite deposit 52 untested geophysical anomalies 52 Swayze greenstone belt 52 lithologies 52 Rainy River Resources 52 Minto copper 52 EM conductors 52 mineralized skarn 52 Tim Mersoi Basin 52 undrilled 52 Beardmore Geraldton greenstone belt 52 Airborne Survey 52 nickel sulphide mineralization 52 bulk minable 52 Shirotnaia 52 Ronguen gold 52 Mikwam 52 Lagunas Norte 52 Mistassini property 52 Claim Blocks 52 Tirek 52 Haukiaho 52 Pinaya 52 volcanic stratigraphy 52 VMS Ventures Inc. 52 metasedimentary 52 Morichito Block 52 massive sulfide mineralization 52 massive sulphide mineralization 52 Siribaya Gold Project 52 gold mineralization intersected 52 nickel sulphides 52 unpatented lode claims 52 Pickle Lake 52 Highbank Lake 52 Cu Ni 52 skarn deposits 52 Matoush 52 stockwork zones 52 Borate Hills 52 Bald Butte 52 Roughrider uranium 52 Commences Drill Program 52 Carscallen property 52 Proterozoic aged 52 Quesnel Terrane 52 Manfo Property 52 Kelex 52 Norra Karr 52 Fayolle deposit 52 banded iron 52 Nordeau East 52 Walsh Katrine 52 Bonanza Ledge 52 unconformably overlain 52 Lac Shortt 52 Maricunga gold 52 geological similarities 52 Dumico 52 Artillery Peak 52 bearing kimberlite 52 mineralized breccias 52 stratigraphy 52 unpatented mineral claims 52 Frankfield East 52 chromite occurrences 52 Nithi Mountain 52 Molybdenum Project 52 northwest trending 52 Dombraly 52 potentially bulk mineable 52 Larder Lake Property 52 Zone Bambadinka 52 Cu Au mineralization 52 Sunbeam Pettigrew property 51 Macusani uranium 51 REE bearing 51 Hotish 51 Otish Uranium 51 Joutel 51 Detour Gold Detour 51 Peppler Lake 51 TerraX 51 porphyry mineralization 51 AREVA Resources 51 CanAlaska 51 Tonogold 51 magnetic anomalies 51 Timmins Mining Camp 51 Wachigabau 51 deformation zone 51 volcano sedimentary belt 51 Lateegra 51 Val d' Or 51 northerly trending 51 IP chargeability anomalies 51 underlain 51 lithium tantalum 51 Rattlesnake Hills 51 Mistassini 51 Ivanhoe Mines Oyu Tolgoi 51 low sulphidation 51 Thelon Project 51 orebodies 51 Los Azules copper 51 auriferous zones 51 geophysical anomaly 51 epithermal 51 Nicholas Denys 51 Quebec Otish Mountains 51 disseminated sulphide mineralization 51 tonalitic 51 PGM mineralization 51 Magistral Project 51 largest landholder 51 Temex Resources Corp. 51 Gossan 51 sulphide deposit 51 lithological contacts 51 Duparquet Township 51 Lac Levac 51 Belleterre mine 51 Southeast Pediment 51 Gramalote 51 element REE 51 Uruachic Camp 51 Candorado 51 batholith 51 SEDEX zinc lead 51 Kilo Moto 51 Nunavik Quebec 51 Geraldton Beardmore 51 Copper Molybdenum Project 51 Duddridge Lake 51 Montney fairway 51 high sulphidation 51 Lac Pau 51 Homestake Ridge project 51 Macusani Plateau 51 Niobium Deposit 51 Besakoa 51 Bokan Dotson Ridge 51 nickel copper cobalt 51 Onaman properties 51 Rattlesnake Hills Wyoming 51 Cruce Property 51 Freegold Mountain Project 51 syenite 51 Solitaire Minerals 51 skarn deposit 51 Au Cu mineralization 51 metasediments 51 epithermal silver 51 leachable copper 51 metavolcanic 51 Coppermine River 51 Tulks South 51 PGM deposit 51 Kettukuusikko 51 UEX 51 Detour Lake 51 Dogpaw Lake 51 geochemical anomalies 51 bearing quartz vein 51 airborne anomalies 51 EM anomalies 51 Deformation Zone 51 kimberlite occurrences 51 Cannu zone 51 Sudbury Breccia 51 East Coldstream Deposit 51 Nicoamen River 51 copper mineralization 51 Chucapaca 51 Schaft Creek 51 Shining Tree Gold 51 Polymetallic 51 Javhlant license 51 porphyry style 51 gabbro dyke 51 Biga Peninsula 51 Ganes Creek 51 Cu Au Ag 51 Los Zorros 51 Fancamp Exploration 51 Beaufor 51 electromagnetic conductors 51 Soquem 51 porphyry copper mineralization 51 alkaline intrusive complex 51 Triex Minerals Corporation 51 Copper Nickel 51 coincident geophysical 51 Fjordland 51 Curipamba 51 unpatented mining claims 51 Despinassy 51 polymetallic mineralization 51 Chucara 51 mineralized intrusive 51 PGEs 51 Cotabambas 51 Culebrilla 51 airborne geophysical surveys 51 Geological mapping 51 Lac Dore 51 mineralization 51 ultramafic 51 Pokukrom West 51 Kwanika copper gold 51 Cu Zn Au Ag 51 Hassai 51 El Cometa 51 MacDonald Mines 51 Belleterre 51 geologically mapped 51 Suurikuusikko 51 Mangabal 51 Anchaca 51 Birch Uchi 50 Zuun Mod 50 Eastmain Greenstone Belt 50 Hallnor 50 stockwork breccia 50 McFaulds 50 Pb Zn 50 hydrothermal alteration 50 outcrop sampling 50 Gold Mineralization 50 Ouro Roxo 50 Falconbridge Limited 50 Larder Lake Break 50 Hambok 50 Yaramoko 50 copper skarn 50 Tak Package 50 Handeni 50 Tulawaka 50 El Torno 50 Monterde property 50 owned Kevitsa nickel 50 Ungava 50 Rare Earth Property 50 soil geochemical anomaly 50 quartz stockworks 50 mineralized lenses 50 prolific Abitibi region 50 nickel cobalt copper 50 Batopilas 50 porphyry Cu 50 Porphyry 50 Foy Offset Dike 50 epithermal vein systems 50 Bathurst Mining 50 Juanicipio Joint Venture 50 Tsa da Glisza emerald 50 sericite schist 50 Ni PGE 50 mineralized zones 50 Cu Ni Co 50 Nokomis Deposit 50 Fieldex 50 heap leachable 50 Chibougamau 50 Nechako Plateau regions 50 Thor Trend 50 granitic pluton 50 Halilaga 50 PGE mineralization 50 Kasagiminnis 50 Reyna de Oro 50 Iron Titanium 50 mineralized horizons 50 Pb Zn Ag 50 geophysical interpretation 50 Penasquito deposit 50 Drill Program 50 Segala gold 50 Wabassi property 50 structurally controlled 50 airborne geophysical survey 50 Yoquivo 50 West Cedartree Gold 50 NI #-# compliant inferred 50 soil geochemical anomalies 50 metallogenic belt 50 sulphide bearing 50 Eastmain Mine 50 Mullaquana 50 mineral tenures 50 Mineralisation 50 Bornite 50 Norlartic 50 Baffin Island Nunavut 50 pelitic gneisses 50 Lapa Mine 50 Kalahari Copper 50 hematite mineralization 50 uranium vanadium 50 lithologic 50 Bellechasse Belt 50 Nopalera 50 McIlvenna Bay 50 Allemata 50 Granduc 50 Casa Berardi 50 Las Bolas Los Hilos 50 calcrete hosted uranium 50 Canadian Malartic gold 50 Raglan nickel 50 Lapa mine 50 Groundhog coal 50 calc silicate 50 Lac Arques 50 Porcupine Mining 50 Otish Uranium Properties 50 prolific Abitibi 50 Cassiar Gold Property 50 kimberlites 50 West Cedartree gold 50 Limosna 50 epithermal gold vein 50 Rare Earth Elements REE 50 infill drill 50 Quebradona 50 granitic rocks 50 ultramafic rocks 50 Massive Sulphide VMS 50 gold geochemical anomaly 50 Wicheeda 50 Northcore Project 50 CANALASKA URANIUM LTD 50 Orenada 50 porphyry copper deposit 50 gravity anomalies 50 extensive landholdings 50 Camflo West 50 Tournigan Gold 50 Maricunga Gold Belt 50 Epithermal Gold 50 Uranium Exploration 50 SAMEX 50 Chrysos 50 Schefferville Gold 50 pegmatites 50 Molybdenum deposit 50 diorite porphyry 50 Snowfield Project 50 Lithium brine 50 skarn zones 50 Cassiar Gold Camp 50 unpatented lode mining 50 mineralized 50 Fold Nose 50 mesothermal gold 50 kimberlite dyke 50 prolifically mineralized 50 Gold Molybdenum 50 Main Lode 50 Beardmore Geraldton Greenstone Belt 50 sulphide deposits 50 massive sulphide deposit 50 Airborne Geophysical Survey 50 Houndé 50 Wellgreen Property 50 quartz monzonite 50 Vindaloo zone 50 Athabasca Uranium 50 Kenora Mining 50 Vanadium Iron Titanium 50 lode claims 50 Beardmore Geraldton 50 porphyry skarn 50 Kingurutik 50 rich Ambler volcanogenic 50 mineral exploration 50 Drilling Commences 50 geophysical surveying 50 tantalum niobium 50 Tay LP 50 scheelite bearing 50 Las Calandrias 50 La Jojoba 50 Kemess mine 50 unpatented claims 50 Malrok 50 Westmin Resources 50 LabMag 49 ultramafic intrusive 49 Moly Dome 49 copper cobalt deposit 49 massive sulphide lens 49 sulphidation epithermal gold 49 stockwork mineralization 49 Prairie Evaporite Formation 49 tenement holdings 49 Beaverhill Lake 49 molybdenum porphyry 49 mafic rocks 49 Tres Juanes Norte 49 Kipawa 49 Fort la Corne 49 Triex 49 Skeena Mining Division 49 Tiekoumala 49 Northern Dancer Tungsten 49 Goldcreek 49 Stratmat 49 Spider KWG 49 Arae Gassel 49 graphitic horizons 49 Pasquia Hills 49 Ag Pb Zn 49 mafic volcanic 49 geochemical anomaly 49 ultramafic intrusion 49 volcanic sedimentary 49 Puget Ventures 49 skarns 49 Sonora Gulch 49 Cogitore 49 Kerr Addison 49 Thelon 49 Dubenski property 49 vanadium deposit 49 Cosmo Howley corridor 49 Hathor Exploration 49 Sleeping Giant Mine 49 subparallel 49 Hypogene 49 Skukum Creek 49 Lakanfla 49 jasperoid 49 volcanogenic 49 Sakoose 49 pegmatite dykes 49 copper PGE 49 West Timmins Mining 49 SEDEX 49 Drilling Extends 49 porphyry copper deposits 49 epithermal bonanza 49 rich volcanogenic massive 49 cobalt nickel 49 disseminated mineralization 49 prospective stratigraphy 49 lineament 49 Kutcho Project 49 Temiscamingue Quebec 49 LaRonde Mine 49 Kerekounda 49 Sao Chico 49 Romios 49 carbonatites 49 Roxgold 49 Bellechasse 49 Sabina Silver 49 electromagnetic geophysical 49 Lac Cinquante deposit 49 Upper Beaver McBean 49 South Barnat deposit 49 Promontorio 49 Mangazeisky 49 granodiorites 49 Arsenopyrite 49 Higo Blanco 49 Riviere Dore 49 soil geochemical survey 49 Huajoto 49 Lamaque Property 49 South Kawishiwi Intrusion 49 copper sulphide 49 Guazapares 49 Lac Rouleau 49 Archean rocks 49 Kingurutik River 49 tonalite 49 kimberlite pipes 49 flagship La Bodega 49 disseminated nickel sulphide 49 Shivee Tolgoi 49 northeast trending 49 Osisko Mining 49 epithermal deposit 49 Fermont 49 Nechalacho deposit 49 Dorset Pickle 49 Friday Petsite 49 Tintina 49 Melville Peninsula 49 Kiena mine 49 Springpole Gold Project 49 TSX OSK 49 Eastford Lake 49 niobium 49 Duck Pond Mine 49 Kimberlite 49 Kay Tanda 49 sulfide mineralization 49 Buchans 49 LaRonde mine 49 Richfield Ventures 49 Ucore 49 Camflo 49 Efemcukuru 49 Nyota Prospect 49 Akie property 49 Amaruk property 49 Cebada mine 49 Copper Zinc 49 Camino Rojo 49 Taurus Deposit 49 Fermont Iron Ore 49 Melkior 49 Niakafiri Southeast 49 massive sulphide zones 49 Sunridge Gold 49 dyke swarm 49 Lake Birch Uchi 49 Evolving Gold 49 Creston Molybdenum Deposit 49 Timmins Porcupine West 49 Bronson Slope deposit 49 Nixon Bartleman 49 Kipawa Alkaline Complex 49 Majescor 49 Goldstorm 49 Barre de Fer 49 Cumaru 49 Eastmain 49 Oshiveli 49 Nebu Resources Inc. 49 Opinaca Nord 49 airborne electromagnetic 49 Malartic Gold 49 Opawica 49 Pirquitas Project 49 orebody 49 layered mafic intrusion 49 KP# potash 49 placer gold 49 massive sulphides 49 Mundoro Mining 49 Dadiangou 49 Atikokan Ontario 49 Renard Diamond 49 pyrite arsenopyrite 49 Gupo Gold 49 geochemical surveys 49 soil anomalies 49 Messina Minerals 49 geophysical anomalies 49 Allammaq 49 Asankrangwa Holdings 49 Manicouagan Minerals 49 quartz tourmaline veins 49 Lemarchant prospect 49 Skukum Mineral District 49 Eagle Nest nickel 49 sheeted vein 49 Atikwa Lake property 49 quartz veined 49 Pivert Rose property 49 Donlin Creek 49 Attikamagen Lake 49 geologically prospective 49 polymetallic deposits 49 Corriente Copper Belt 48 Cantung mine 48 Sarfartoq 48 Mina Justa 48 Sedimentary Basin 48 induced polarization surveys 48 El Tapau 48 Desmaraisville 48 Utica Shales 48 felsic metavolcanic