Related by context. All words. (Click for frequent words.) 79 3D induced polarization 77 pole dipole 77 ground magnetics 76 3D Induced Polarization 75 magnetic geophysical 75 HLEM 74 km induced polarization 74 kilometer Induced Polarization 74 Induced Polarisation 74 Induced Polarization 74 induced polarization IP 73 magnetometric 73 magnetometer surveys 73 magnetic geophysical surveys 73 induced polarization survey 73 kilometer airborne magnetic 73 resistivity surveys 73 Quantec Geoscience 72 IP geophysical 72 dipole dipole IP 72 magnetometer survey 72 induced polarization resistivity 72 induced polarization 72 Induced Polarization Resistivity 72 induced polarization geophysical 72 airborne VTEM 72 downhole EM 72 Induced polarization 72 linecutting 72 IP geophysics 71 Ground geophysics 71 Quantec Titan 71 airborne EM 71 geophysical induced polarization 71 IP induced polarization 71 anomalous chargeability 71 airborne radiometric 71 resolution airborne magnetic 71 IP resistivity 71 Induced Polarization IP 71 IP Induced Polarization 70 airborne electromagnetic EM 70 Geophysical surveys 70 IP Resistivity 70 Detailed geological mapping 70 DEEPEM 70 induced polarization surveys 70 airborne magnetic 70 soil geochemical survey 70 XDS VLF EM 70 airborne magnetics 70 ZTEM survey 70 ground magnetometer surveys 70 AeroTEM III 69 CSAMT 69 IP Resistivity survey 69 aero magnetic 69 MMI anomalies 69 InfiniTEM 69 geochemical soil 69 resistivity surveying 69 electromagnetic EM geophysical 69 magnetic radiometric 69 penetrating induced polarization 69 airborne magnetic radiometric 69 prospecting trenching 69 resistivity geophysical 69 dipole dipole 69 helicopter borne VTEM 69 UTEM 69 magnetic electromagnetic 69 TDEM 69 Induced Polarisation IP 69 penetrating electromagnetic 69 Abitibi Geophysics 69 airborne electromagnetic 68 soil geochemical surveys 68 MegaTEM 68 Geotech VTEM 68 anomaly coincident 68 airborne magnetometer 68 detailed geologic mapping 68 airborne radiometric magnetic 68 IP resistivity survey 68 Geological mapping 68 induced polarization geophysical surveys 68 IP geophysical surveys 68 detailed airborne magnetic 68 JVX Ltd. 68 coincident geophysical 68 stream sediment geochemical 68 Quantec 68 radiometric airborne 67 airborne geophysical surveying 67 VTEM surveys 67 VTEM airborne geophysical 67 coincident magnetic 67 penetrating geophysical 67 electromagnetic EM survey 67 airborne geophysics 67 coincident induced polarization 67 electromagnetic geophysical survey 67 Induced Potential 67 MMI soil geochemical 67 Fugro Ground 67 Detailed mapping 67 soil geochemical sampling 67 radiometrics 67 electromagnetic conductors 67 airborne geophysical surveys 67 Geotech Ltd. 67 Induced Polarization surveys 67 Luhwaika 67 gravity geophysical surveys 67 airborne geophysical anomalies 67 Induced Polarization geophysical 67 transient electromagnetic 66 outcropping mineralization 66 Lone Pine Property 66 induced polarization anomaly 66 Roughrider East 66 Soil geochemistry 66 Kanosak 66 geological mapping prospecting 66 Gradient Array 66 outcrop sampling 66 Ground geophysical surveys 66 radiometric survey 66 IP geophysical surveying 66 infill sampling 66 magnetometric survey 66 electromagnetic surveys 66 magnetic VLF EM 66 auger drill 66 mechanical trenching 66 induced polarization anomalies 66 geophysical interpretation 66 borehole geophysical 66 ground geophysical surveying 66 Megatem 66 geological reconnaissance 66 aeromagnetic 66 Quantec Geoscience Ltd. 66 Itigi Manyoni Uranium 66 NQ diamond 66 termite mound geochemical sampling 66 soil geochemical 66 Pulse EM 66 geophysical surveying 66 MEGATEM II 65 Kasala Main Zone 65 induced polarization geophysics 65 kilometer airborne geophysical 65 ground geophysics 65 geochemical geophysical 65 ground geophysical surveys 65 Aeromagnetic 65 ZTEM 65 borehole EM 65 mapping prospecting 65 radiometric magnetic 65 geological mapping trenching 65 Drill hole SADD# 65 geochemical surveying 65 EM geophysical survey 65 mapping geochemistry 65 meter spacing 65 km 2D seismic 65 mapping geochemical sampling 65 lake sediment geochemical 65 BHEM 65 Tantamaco 65 InfiniTEM survey 65 drill hole NAD# 65 VLF surveys 65 Titan# 65 AeroTEM 65 airborne geophysical 65 radiometric surveys 65 Itilima 65 heliborne magnetic 65 soil geochemistry 65 Geochemical sampling 65 aeromagnetic survey 65 Reverse circulation 65 aircore 65 Marban deposit 65 aeromagnetics 65 VTEM geophysical 65 VTEM airborne survey 65 borehole electromagnetic 65 geophysical surveys 64 geophysical surveys trenching 64 TDEM survey 64 Takom 64 copper molybdenum mineralization 64 Detailed geologic mapping 64 Fayolle Project 64 VTEM 64 #km 2D seismic 64 intersected kimberlite 64 mapping trenching 64 Reverse Circulation drilling 64 Geologic mapping 64 resistivity anomaly 64 litho geochemical 64 coincident chargeability 64 ODM# Zone 64 VTEM airborne surveys 64 Induced polarization IP 64 surface trenching 64 prospecting mapping 64 Time Domain Electromagnetic 64 anomalous geochemical 64 geophysical 64 Klaza Zone 64 IP chargeability anomalies 64 Geophysical Survey 64 magnetometry 64 airborne electro magnetic 64 chargeability anomaly 64 mechanized auger 64 geophysical geochemical 64 Insight Geophysics 64 chargeability anomalies 64 Ixtaca 64 Soil geochemical 64 detailed aeromagnetic survey 64 geophysical conductors 64 borehole Pulse 64 Gramalote property 64 borehole geophysics 64 geologically mapped 64 auriferous zones 64 geophysical interpretations 64 Las Boquillas 64 MEGATEM 64 kilometer 2D seismic 64 hole CJV 64 IP chargeability anomaly 64 magnetometer surveying 64 Bambadinka trend 64 adit sampling 64 DDH# [001] 64 radiometric surveying 64 VTEM airborne 64 BHEM surveys 63 Sicera Sur 63 La Mascota zone 63 anomalous soil geochemistry 63 geophysical conductor 63 Mankarga 5 63 electro magnetic EM 63 conductive zones 63 MMI soil geochemistry 63 Black Thor chromite 63 meter spacings 63 magnetic geophysical anomaly 63 geophysical survey 63 EW trending 63 Induced Polarization geophysical surveys 63 Pokukrom West 63 lithogeochemical 63 Resistivity 63 Buriti trend 63 aeromagnetic data 63 conductive anomaly 63 VLF EM 63 Calandria Norte 63 hole RC# 63 VTEM survey 63 airborne magnetic survey 63 mineralized zones intersected 63 gravity gradiometry 63 Kirana Break 63 airborne radiometric survey 63 IP chargeability 63 airborne EM survey 63 resolution aeromagnetic 63 surface geochemical sampling 63 geophysics prospecting 63 Discovery Outcrop 63 AeroTEM II 63 Abitibi Geophysique 63 Encino Vein 63 electromagnetic surveying 63 Mag EM 63 trenching mapping 63 geological geochemical 63 holes #WR# 63 Airborne geophysics 63 km2 3D seismic 63 trenching sampling 63 Reverse Circulation 63 Zone Bambadinka 63 geological mapping sampling 63 EM conductors 63 coincident geochemical 63 Dogpaw Lake 63 downdip extension 63 excavator trenches 63 VLF EM surveys 63 anomalous radiometric 63 airborne magnetic electromagnetic 63 Terraquest 63 Bellechasse Timmins deposit 63 shallow laterally 63 geochem 62 Klaza property 62 Siribaya mega structure 62 Bejucosa 62 Zafranal Main Zone 62 reconnaissance mapping 62 approximately #km# [002] 62 Au Cu mineralization 62 SGH anomalies 62 Fofina 62 Radiometric surveys 62 sq km 3D seismic 62 scintillometer surveys 62 Pokukrom East 62 section #N [002] 62 sampling trenching 62 vein outcrops 62 northerly trending 62 #WR# 62 Yarumalito 62 Anuri kimberlite 62 BB# [002] 62 2D seismic survey 62 Promontorio mine 62 hole WAT# 62 hole LA# 62 conductive anomalies 62 stream sediment geochemistry 62 surface outcrops 62 EM conductor 62 mineralized pegmatite 62 Cumpie Hill 62 intersected sulphide mineralization 62 Timmins Porcupine West 62 mineralized skarn 62 section #E [003] 62 Hole EC# 62 airborne anomalies 62 Takom Zone 62 Completes Airborne 62 geologic mapping 62 Tortigny deposit 62 MEGATEM survey 62 geological mapping geochemistry 62 VTEM conductors 62 NSAMT 62 holes RR# 62 Horizontal Loop Electromagnetic 62 Lamothe Showing 62 airborne geophysical survey 62 disseminated sulphide mineralization 62 inversion modeling 62 Shirotnaia zone 62 hole RR# 62 IP geophysical anomaly 62 Dubenski 62 Nyota Prospect 62 Calandria Sur 62 Cobrecon 62 anomalies coincident 62 downhole geophysical 62 Airborne EM 62 VTEM anomalies 62 prospecting geological mapping 62 SJ Geophysics 62 approximately #km# [001] 62 IP Resistivity surveys 62 EM anomalies 62 resistivity anomalies 62 drill hole SADD# 62 Emba Derho deposit 61 Suuri zone 61 coincident gravity 61 Juanicipio Vein 61 Electromagnetic EM 61 veins stockworks 61 Crone Geophysics 61 aircore drilling 61 mineralized outcrops 61 electromagnetic anomaly 61 Encanto Zone 61 aircore drill 61 IOCG targets 61 Induced Polarization IP chargeability 61 airborne magnetic anomaly 61 surface geochemistry 61 sulphide mineralization intersected 61 Filo de Oro 61 OTD# 61 AHGZ 61 Ntaka Hill 61 PdA Extension 61 excavator trenching 61 CSAMT survey 61 Induced Polarization Survey 61 detailed airborne geophysical 61 mineralized drill intercepts 61 RRZE 61 RC drillholes 61 Zonge Engineering 61 MMI geochemistry 61 spodumene bearing intrusives 61 Ni Cu PGM mineralization 61 Gramalote Ridge 61 Haukiaho 61 airborne VTEM survey 61 Surface sampling 61 Mouchalagane 61 VTEM geophysical survey 61 Dogpaw 61 LURC# 61 geochemical sampling 61 Induced Polarization anomaly 61 bulldozer trenching 61 geochem anomalies 61 IP geophysical anomalies 61 Holes EC# 61 vein breccia 61 Airborne geophysical surveys 61 MPD# 61 WDC# 61 Matala deposit 61 Main Homestake 61 sericitic 61 lateral extensions 61 previously unsampled 61 drilled thicknesses 61 disseminated stringer 61 Nfante East 61 silica pyrite 61 diamond drillholes 61 epithermal quartz veins 61 Bajo Negro vein 61 gossanous 61 electromagnetic geophysical 61 Terraquest Ltd. 61 SLD# 61 MMI geochemical 61 backhoe trenching 61 gamma ray spectrometry 61 Sunbeam Pettigrew property 61 NQ diamond drilling 61 petrographic studies 61 DDH #B 61 geophysics trenching 61 electromagnetic conductor 61 REE mineralized 61 El Compas 61 Thor Trend 61 NNW trending 61 Corachapi 61 EXD# 61 Tatajuba 61 reconnaissance prospecting 61 previously undrilled 61 induced polarization IP chargeability 61 Pivert East 61 Airborne Geophysical 61 Fugro Airborne Surveys 61 airborne electromagnetic survey 60 Las Bolas deposit 60 El Cometa 60 reconnaissance geological mapping 60 airborne EM surveys 60 extensive artisanal workings 60 Bracemac Key Tuffite Zone 60 Cordero Porphyry 60 magnetite mineralization 60 Ruhuhu 60 Ayelen Vein 60 Magnetic susceptibility 60 Chiis 60 Drillhole 60 intersect mineralization 60 airborne electromagnetic AEM 60 coincident IP chargeability 60 chargeability IP 60 Cordero Porphyry Belt 60 chargeability highs 60 Quebrada Verde 60 2D seismic data 60 #m@#.# g t Au [004] 60 stockwork veining 60 Diamond Drill Hole 60 Nueva Concepcion 60 Preliminary metallurgical 60 Sleeping Giant Zone 60 NN Zone 60 Soquem 60 trending mineralized 60 El Cuatro 60 Fayolle property 60 variography 60 Geodatos 60 geophysical geological 60 intersected weakly mineralized 60 GEOTEM 60 geological mapping geochemical sampling 60 dravite 60 Radiometric 60 NQ diamond drill 60 m@#.# g t Au [002] 60 electromagnetic EM 60 Magnetometer 60 Kay Tanda 60 Santa Pancha 60 Wasamac property 60 geological mapping 60 #m@#.# g t Au [002] 60 LTD# 60 ground radiometric surveys 60 pegmatite dyke 60 northwesterly trending 60 vein stockwork 60 Zafranal 60 Rare Earth Element REE 60 helicopter borne DIGHEM 60 Explor Resources 60 BLEG 60 magnetic geophysical anomalies 60 gold geochemical anomalies 60 radiometric anomaly 60 airborne electromagnetic anomalies 60 Geotech Ltd 60 Sian Praso 60 CSAMT geophysical survey 60 Ngalia Basin 60 Kierens 60 Ixtaca zone 60 Las Bolas structure 60 Significant intercepts 60 hole ZFDDH# 60 #m@#.#g t Au [001] 60 Oshiveli 60 detailed geological mapping 60 auger sampling 60 sub Athabasca unconformity 60 geochemical assay 60 magnetite alteration 60 Reverse Circulation RC 60 intersected mineralized 60 Sicera Norte 60 airborne EM anomaly 60 geochemical surveys 60 outcropping veins 60 Kinyambwiga gold 60 strikelength 60 Lower Acacus Formation 60 MMI anomaly 60 Bedard Dyke 60 Darnley Bay gravity 60 Ouro Verde deposit 60 VTEM Survey 60 Carheil property 60 gold copper porphyry 60 uranium mineralization intersected 60 intersected massive sulphides 60 #TR# 60 soil geochemical anomalies 60 stockwork breccia 60 Zam Zam Shenkman 60 ground geophysics trenching 60 Surface trenching 60 Kavola East 60 Adumbi Prospect 60 prospective stratigraphy 60 Shaft Zone 60 Mbenge Zone 60 geological mapping geochemical 60 appraisal sidetrack 60 aeromagnetic surveys 60 Tagpura 60 mineralization encountered 60 uranium anomalism 60 potentially bulk mineable 60 radiometric geophysical survey 60 Destor Porcupine fault 60 Igunda 60 #m@#.#g t gold [001] 60 Dubenski Shaft Zone 60 strongly silicified 60 hole #SWC 60 airborne radiometrics 60 Hangingwall 60 Douay Ouest 60 Norlartic 60 mineralized outcrop 60 Airborne Magnetic 60 palaeochannel 60 High Resolution Aeromagnetic 60 drillcore 60 intersected anomalous gold 60 #CBN 60 Soil sampling 60 Hole RR# 60 Las Calandrias 60 El Orito vein 59 stockwork zone 59 sampling geological mapping 59 South Miwah Bluff 59 AeroTEM survey 59 radiometric anomalies 59 alunite alteration 59 surface geochemical anomalies 59 Aeroquest Limited 59 Mankarga Zone 59 hole NR# 59 ground radiometric surveying 59 Amun Deeps 59 Artavasdes 59 mechanized trenching 59 northwest trending shear 59 soil geochemistry surveys 59 variably altered 59 TSX VENTURE VMS 59 DDH IAX 59 silica breccias 59 Los Candelones 59 Cu Au mineralization 59 Tabakoto pit 59 TerraX 59 Radiometric Survey 59 Bronson Slope deposit 59 magnetic anomalies 59 El Compas vein 59 Plata diatreme 59 VTEM airborne magnetic 59 soil geochemistry sampling 59 Djambaye II 59 Junnagunna 59 Mt Penck 59 Kena Property 59 scintillometer survey 59 molybdenum porphyry 59 airborne magnetic anomalies 59 Spider KWG 59 Bracemac Zone 59 Hibou dyke 59 scheelite bearing 59 Cretaceous limestone 59 Geophysical surveying 59 Arap Tepe 59 Miwah Gold Zone 59 VVGD 59 spodumene bearing 59 ZFDDH# 59 Ronguen Main Zone 59 EM anomaly 59 mineralized corridor 59 Mineralized intervals 59 petrophysical 59 potassically altered 59 Hambok 59 Yaxtche deposit 59 termite mound sampling 59 Dogpaw Lake property 59 REN Property 59 GCL# 59 JAK Zone 59 Geotech Airborne Limited 59 outcrop exposures 59 massive sulphide horizon 59 Kinojevis property 59 Homestake Silver 59 stream sediment 59 hole HR# 59 Malrok 59 VTEM conductor 59 Dubenski property 59 radiometric 59 intrusive breccia 59 ultramafic intrusives 59 Rodilla Manto 59 metres@#.#g t gold 59 Malartic Lakeshore property 59 DUB# 59 #m@#.#g t Au [003] 59 sulphide breccia 59 WAT# #A 59 #m@#.# g t [002] 59 downhole depth 59 Breccia Ridge 59 Cuiu Cuiu 59 Nfante West 59 mineralized breccia 59 felsic dikes 59 SADD# 59 mineralized shear zone 59 hole MWNE 59 Handeni Gold Trend 59 Hole HR# 59 advanced argillic alteration 59 silica breccia 59 wireline logging 59 regolith mapping 59 Rojo Grande 59 HG Sulphide zone 59 Extension Occurrence 59 GPD# 59 #.# meters downhole 59 trench sampling 59 AZS# 59 Capoose 59 uraniferous 59 El Orito 59 stringer mineralization 59 geophysical datasets 59 Mankarga 59 Puella Bay 59 Heruga Deposit 59 DDHs 59 outcrop stripping 59 Naciente Quebrada Pedregosa 59 sylvinite 59 northeasterly trending 59 Hole BL# 59 Greenschist Zone 59 Aircore drilling 59 downhole geophysics 59 #m@#.#g t Au [005] 59 Colnic 59 VTEM anomaly 59 aircore holes 59 geophysical modeling 59 Akasaba Mine 59 #.#g t [005] 59 gold mineralization intersected 59 airborne radiometric anomalies 59 Aricheng West 59 Marta Este 59 Represa Zone 59 auger geochemical 59 geophysical anomaly 59 Minapampa Zone 59 Deflector mineralization 59 Korkan target 59 Skukum 59 UTEM survey 59 Drill intersections 59 El Rayo structure 59 vein breccias 59 Somituri Project 59 Ciresata deposit 59 DDH CF# 59 Highbank Lake 59 Soil Anomaly 59 Forestel Zone 59 El Domo deposit 59 Carheil 59 ultramafic unit 59 stratigraphically below 59 auger drilling 59 anomalous zones 59 Lac Cinquante 59 disseminated sulphide 59 trending shear zone 58 enzyme leach 58 Cassiar Moly property 58 VLF EM survey 58 FNX# 58 Brecha Limite 58 Pampa Sur 58 Brookbank Deposit 58 supergene zone 58 Carscallen property 58 Fobiri 58 Grandroy 58 drilled directionally 58 Simuku 58 Matoush fault 58 outcropping vein 58 MR# #C 58 DEBD 58 Rusk Zone 58 magnetics 58 seismic reprocessing 58 Carotare 58 RAB drilling 58 Dienemera 58 outcropping quartz veins 58 Galloway Pitchvein 58 infill diamond 58 drill hole RMZ# 58 La Mascota 58 Amaruk property 58 RC percussion 58 glacial overburden 58 radiometric prospecting 58 drillholes totaling 58 Wireline logs 58 mineralized gabbro 58 mafic intrusions 58 Drillholes 58 MegaTEM II 58 Nicho Zone 58 Regcourt 58 2D seismic 58 LC#C 58 kimberlitic material 58 trenching 58 EM geophysical 58 sidewall cores 58 structural lineaments 58 Pinwheel Zone 58 Clementine vein 58 tungsten mineralization 58 electromagnetic EM conductors 58 Hole SP# 58 Paititi San Francisco 58 underground delineation drilling 58 Bellechasse Timmins 58 HZ# 58 Geochemical soil 58 Ciresata 58 #.#g t Ag [005] 58 Yaramoko 58 Guayabales 58 Quifa #X 58 gravity anomaly 58 Hole WAT# 58 mineralized shear 58 sulfide bearing 58 Kangaluwi 58 magneto telluric 58 Farellon 58 ENE trending 58 Jumping Josephine 58 RC drill 58 intersected anomalous radioactivity 58 Culebrilla 58 Adi Nefas 58 Las Tres Palmas 58 Sherridon Property 58 Koshaj 58 Hache lens 58 Section #NE [002] 58 Riscos de Oro 58 Ouro Roxo 58 alaskite bodies 58 trending steeply dipping 58 La Bodega zone 58 andesitic rocks 58 airborne gravity gradiometry 58 chargeability resistivity 58 #m@#.#g t [006] 58 Enzyme Leach soil 58 Guajes West 58 holes MM# 58 N#W [002] 58 Copaquire 58 Dombraly 58 extensional drilling 58 Oro Amigo 58 Moriss zone 58 Azulitas 58 Scadding Gold 58 mineralized intrusive 58 Veta Norte 58 alluvial gravels 58 subcrop 58 Nyafe 58 airborne magnetic surveys 58 vein stockworks 58 bedrock conductors 58 spaced drill 58 Kobada 58 variogram 58 metres@#.# g t Au [003] 58 silicified zones 58 Airborne Survey 58 geophysical targets 58 Footwall Zone 58 geology geochemistry 58 Rottenstone 58 vertically dipping 58 Guayabito 58 metres@#.# g t [003] 58 anomalous mineralization 58 ZK# [002] 58 manganese mineralization 58 NE trending 58 NAD# [002] 58 Porcupine Destor 58 Pasacancha Hole 58 Los Laches 58 Riscos 58 Radiometrics 58 subhorizontal 58 quartz ankerite 58 East Acma 58 #m@#.# % [003] 58 Shyri 58 hole NAD# 58 Fold Nose 58 kimberlite occurrences 58 Airborne Geophysical Surveys 58 Gwenivere 58 kimberlite dykes 58 averaging #.#g t [001] 58 Curipamba 58 Cerro de Oro 58 intersected disseminated 58 Pasacancha 58 Tiriganiaq 58 geological geophysical 58 Minas Corani 58 Cerro Moly 58 kimberlite outcrop 58 magnetic azimuth 58 intersected mineralized zones 58 Central Mineralised Zone 58 Renard cluster 58 footwall mineralization 58 Magambazi 58 NQ diameter 58 Creso Exploration Inc. 58 magnetic gradiometer 58 drillhole spacing 58 magnetic anomaly 58 #m@#.#g t Au [004] 58 radon anomalies 58 #m@#.# g t Au [001] 58 crestal 58 Ryanwood Exploration 58 Alaskite Zone 58 Goldpines North 58 airborne electromagnetics 58 soil sampling trenching 58 underground adits 58 Hotish 58 geochemically anomalous 58 Rovina porphyry 58 geochemical 58 HRAM 58 Butia prospect 58 gold anomalism 58 gravity anomalies 58 Zn Ag 58 Caracle Creek International 58 Dogpaw No. 58 Bajo Negro 58 Yaxtché deposit 58 sericite schist 58 West Gabbro Zone 58 mineralized intercept 58 interval assaying 58 Bokan Dotson Ridge 58 epithermal silver 58 Drilling Extends 58 anomalism 58 steeply dipping fault 58 Nueva Caledonia 58 mafic intrusive 58 Calvario Vein 58 silicified breccia 58 geochemical samples 58 Haquira Project 58 sheeted quartz veinlets 58 chargeability 58 Eastford Lake 58 South Barnat 58 drillhole database 57 Onkelo 57 Harrier Underground 57 Sinchao Property 57 Asankrangwa Holdings 57 multielement 57 metres@#.# g t Au [002] 57 TSX VENTURE BFD 57 Manzako Prospect 57 Snowfield Zone 57 Otish Mountains 57 1B substructure 57 Interferometric Synthetic Aperture Radar 57 Valle Hondo 57 potash mineralization 57 Drill hole HR# 57 Structural Corridor 57 Pozo Seco 57 resistivity lows 57 calcrete sampling 57 Mankranho concession 57 aeromagnetic anomalies 57 #.#g t silver [003] 57 Animas vein 57 reprocessed seismic 57 Key Tuffite 57 MGZD# [001] 57 bearing quartz stockwork 57 mineralized diorite 57 hole BR# 57 coincident magnetic anomaly