copper sulfides

Related by string. copper sulfide * copped . copping . Copps . COPPER . Copping . COPP : Michael Copps . Copper Canyon . copper piping . refined copper . nickel copper . revamped Copps Coliseum / Sulfides . Sulfide : hydrogen sulfide H2S . Hydrogen Sulfide H2S . poisonous hydrogen sulfide . hydrogen sulfide sulfuric acid . sulfides . ammonia hydrogen sulfide * copper sulfide mineralization *

Related by context. All words. (Click for frequent words.) 71 copper sulphides 70 chalcopyrite copper 70 copper cobalt nickel 69 sulphide mineral 69 cobalt mineralization 69 pyrite sphalerite 69 sphalerite zinc 69 pyrite arsenopyrite 69 vein stockworks 69 silver indium 69 copper skarn 69 lithium tantalum 68 molybdenum tungsten 68 Chalcopyrite 68 copper sulphide 68 vanadium titanium 68 stockwork breccia 68 quartz calcite 68 bearing sulphide mineralization 68 skarns 68 polymetallic deposit 67 galena pyrite 67 bornite chalcopyrite 67 Cu Au mineralization 67 chromium nickel 67 lithological contacts 67 K feldspar 67 heap leachable gold 67 arsenopyrite pyrite 67 siliceous 67 copper sulphide mineralization 67 silicified zones 67 hematite magnetite 67 nickel vanadium 67 stockwork veins 66 mineralized skarn 66 copper molybdenum gold 66 abundant pyrite 66 antimony Sb 66 wallrock 66 tourmaline veins 66 mineralized pegmatite 66 PGEs 66 Cu Zn 66 chalcopyrite pyrite 66 quartz feldspar 66 Banded Iron Formation 66 stringer mineralization 66 Ag Pb Zn 66 copper sulfide 66 sulphide deposits 66 Tungsten Molybdenum 66 quartz stockworks 66 sulfosalts 66 chalcopyrite sphalerite 66 Hypogene 66 smithsonite 66 chalcopyrite bornite 66 garnet skarn 66 niobium tantalum 66 leachable copper 66 epidote 66 vuggy silica quartz alunite 66 arsenic antimony mercury 66 lapilli tuff 65 carbonate veins 65 Corani silver 65 covellite 65 argentiferous 65 copper molybdenum silver 65 pyrophyllite 65 veins stockworks 65 molybdenite mineralization 65 pyrite alteration 65 breccias containing 65 sulphide breccia 65 Au Cu mineralization 65 Copper Cu 65 silicification quartz 65 pegmatite hosted 65 mineralizations 65 enargite 65 Malrok 65 sulphide minerals 65 sphalerite galena 65 pyrite pyrrhotite chalcopyrite 65 manganese oxides 65 sericite chlorite 65 quartz stringers 65 zinc sulphide 65 sulfide mineralization 65 carbonatized 65 chalcocite chalcopyrite 65 uranophane 65 sericite pyrite 65 molybdenum sulphide 65 scheelite 65 strongly silicified 65 titanium oxides 65 iron carbonate 65 chalcopyrite chalcocite 65 nickel Ni 65 galena sphalerite 65 hematite goethite 65 nickel chromium 65 Ciresata deposit 65 cherty 65 arsenopyrite mineralization 65 quartz pyrite 64 quartz veins containing 64 copper nickel cobalt 64 pathfinder elements 64 open pittable 64 pyrite galena 64 potentially bulk mineable 64 Ni Cu PGM mineralization 64 silica pyrite 64 sulphide bearing 64 Cu Au Mo 64 Valle Esperanza 64 historically productive Mirdita 64 chrysocolla 64 Cu Mo Au 64 Dioulafoundou 64 adularia 64 gossans 64 alunite 64 AngloGold Ashanti Titiribi 64 pyrite marcasite 64 antimony mineralization 64 Goldpines North 64 mafic intrusive 64 banded quartz 64 silicate mineral 64 alunite alteration 64 favorable lithologies 64 breccia pipes 64 Las Bolas structure 64 Spodumene 64 disseminated sulphide 64 minor chalcopyrite 64 chromium titanium 64 zinc indium 64 greywackes 64 intensely oxidized 64 auriferous zones 64 cobalt nickel 64 outcropping mineralization 64 variably altered 64 weakly anomalous 64 magnetite skarn 64 skarn deposits 64 intrusive breccia 64 volcanogenic massive sulfide VMS 64 footwall zones 64 biotite chlorite 64 kaolin bauxite alumina 64 stockwork mineralization 64 pyrite veins 64 mineralized quartz vein 64 PGM mineralization 64 Alaskite 64 chlorite epidote 64 #m@#.# % [002] 64 chalcedonic 64 oxide copper 64 bearing quartz carbonate 64 quartz adularia veins 64 metres@#.# % [002] 64 potassically altered 64 granodiorites 64 potassium feldspar 64 quartz sericite pyrite 64 albite 64 manganese mineralization 64 sulfide veins 64 copper Cu 64 quartz hematite 64 diopside 64 magmatic nickel copper 64 breccia hosted 64 gossanous 64 quartz breccias 64 specular hematite 64 nepheline 64 ultramafic intrusive 63 eluvial 63 quartz sericite 63 epidote chlorite 63 sulphide zones 63 Sericite 63 acid soluble 63 Au Eq 63 gold porphyry mineralization 63 granitoids 63 finely disseminated 63 Kena Property 63 Stratmat properties near 63 low sulphidation 63 REE bearing 63 rhyolite tuffs 63 hematite alteration 63 leucoxene 63 meta sedimentary 63 vein stockwork 63 Sulphide mineralization 63 Rare Earth Element REE 63 Zinc Copper 63 lepidolite 63 felsic intrusive rocks 63 surface outcrops 63 chalcopyrite pyrrhotite 63 stibnite 63 mineralized breccias 63 copper platinum palladium 63 anomalous arsenic 63 silica sulphide 63 pentlandite 63 bearing breccias 63 schistose 63 formation BIF 63 chlorite sericite 63 variably mineralized 63 carbonate vein 63 Rhenium Re 63 metavolcanic 63 galena sphalerite chalcopyrite 63 itabirite 63 Lac Cinquante deposit 63 chalcocite covellite 63 propylitic alteration 63 porphyritic intrusive rocks 63 surface geochemical anomalies 63 alteration halos 63 bornite 63 chloritic 63 stockwork veining 63 magnetite pyrite 63 tetrahedrite 63 Au Cu Ag 63 kimberlite dyke 63 quartz adularia 63 Cu Ni 63 porphyritic 63 silica carbonate 63 Njame 63 greenschist facies 63 vanadium mineralization 63 Frankfield East 63 #m@#.# % [006] 63 diorite porphyry 63 volcanic stratigraphy 63 bulk mineable 63 sylvinite 63 anomalous molybdenum 63 intense silicification 63 quartz sulphide veins 63 stockwork veined 63 calc silicate skarn 63 bearing sulphides 63 platinum Pt 63 trace chalcopyrite 63 pyrite chalcopyrite 63 shearing alteration 63 tungsten mineralization 63 disseminated pyrite pyrrhotite 63 iron sulphides 63 acanthite 63 magnetite chalcopyrite 63 niobium oxide 63 hypogene 63 disseminated arsenopyrite 63 intensely silicified 63 stratabound 63 Dombraly 63 sulfide ores 63 pyrite altered 63 magnetite mineralization 63 spodumene rich 63 epithermal mineralization 63 potentially open pittable 63 quartz carbonate vein 63 propylitic 62 detrital 62 stockwork zones 62 #.#g t silver [003] 62 kaolinite 62 platinum palladium nickel 62 supergene copper 62 Ni Cu PGM 62 skarn mineralization 62 magnetite hematite 62 Louvicourt 62 pathfinder element 62 sericitic 62 cadmium selenium 62 Sodium Peroxide Fusion 62 Ag Au 62 advanced argillic alteration 62 biotite magnetite 62 arsenic bismuth 62 Thor Trend 62 pelite 62 mineralized intrusive 62 porphyry intrusive 62 sulphide mineralized 62 volcanic tuffs 62 Argentex polymetallic discovery 62 felsic rocks 62 rhyolite porphyry 62 alaskite 62 stratabound copper 62 g t PGM 62 pyrargyrite 62 brecciated quartz 62 amphibolites 62 phyllite 62 quartz carbonate veining 62 volcanogenic 62 feldspar porphyry 62 siderite 62 quartz veins breccias 62 disseminated sulfide 62 Central Mineralised Zone 62 Las Boquillas 62 massive sulphide zones 62 pegmatitic 62 coincident anomalous 62 open pitable 62 biotite alteration 62 REE mineralized 62 polymetallic Au Ag 62 Kulu copper 62 molybdenum porphyry 62 bulk minable 62 El Tecomate 62 polymetalic 62 quartz pyrite veins 62 quartz sulphide vein 62 copper molybdenum mineralization 62 ODM# 62 sericite 62 stockwork quartz 62 Skarn Zone 62 NNW trending 62 quartz tourmaline 62 pyrite pyrrhotite 62 nickel zinc 62 sericite schists 62 secondary chalcocite 62 phosphorus magnesium 62 tuffaceous rocks 62 Haquira East 62 copper ores 62 sulphide occurrences 62 quartz ankerite 62 Molybdenite 62 felsic intrusive 62 leachable copper mineralization 62 molybdenum bismuth 62 dunite 62 Marban deposit 62 Cu Zn Ag 62 actinolite 62 sphalerite chalcopyrite 62 chalcocite 62 Zn Cu 62 veins breccias 62 Ilmenite 62 Au Ag Pb Zn 62 exhalite 62 quartz stockwork veining 62 nickel cobalt copper 62 HG Sulphide zone 62 epithermal quartz 62 prospective Hurdman Zinc 62 skarn horizon 62 Xstrata Copper Las Bambas 62 sulphide deposit 62 Golouma West 62 porphyry intrusives 62 Hushamu 62 #.#m grading #.#g [001] 62 jasperoid 62 gold geochemical anomaly 62 polymetallic veins 62 molybdenite occurs 62 Nyafe 62 volcanic massive sulphide 62 pyrrhotite pyrite 62 mineralized gabbro 62 supergene 62 sheeted veins 62 Barite Hill 62 outcrop exposures 62 sericitic alteration 62 sulphide 62 mylonite 62 La Jojoba 62 Nueva Concepcion 62 intersected anomalous 62 South Miwah Bluff 62 Yaxtche deposit 62 malachite azurite 62 oxide sulphide 62 + Pd + 62 fine grained pyrite 62 Kambalda style 62 tonalitic 62 stockwork quartz veins 62 massive sulphide occurrences 62 averaging #.#g t [003] 62 breccia mineralization 62 Merensky Reef 62 layered mafic intrusive 62 ultramafics 61 Cannu 61 titanomagnetite 61 magmatic massive sulphides 61 pyrochlore 61 advanced argillic 61 massive sulphide deposits 61 pyrite mineralization 61 pyroxenites 61 Kerekounda 61 Silica Ridge 61 #m@#.# g t [002] 61 ZrO2 61 m@#.# g t Au [002] 61 Carbonatite Complex 61 colluvial 61 hornblende 61 quartz tourmaline veins 61 Southeast Pediment 61 chalcocite mineralization 61 carnotite 61 Sulphide 61 mafic intrusives 61 diorites 61 Archean aged 61 acid leached 61 quartz arsenopyrite 61 Ni Cu 61 granitic pegmatite 61 carbonate altered 61 molybdenite MoS2 61 Cu Mo Ag 61 epithermal stockwork 61 metallurgical characteristics 61 Sudbury breccia 61 silicified porphyry 61 silver equivalent AgEq 61 Nicholas Denys 61 laterite mineralization 61 pyrite chalcopyrite sphalerite 61 rhyodacite 61 Ag Cu Pb 61 Athabasca unconformity 61 Pilunani 61 Alto Quemado 61 Zn Ag 61 polymetallic ore 61 Penasco Quemado 61 alkaline intrusive complex 61 quartz biotite 61 metavolcanics 61 gossan zones 61 altered rhyolite 61 Outcropping 61 g t rhenium 61 felsic intrusion 61 mineralized shear zones 61 quartz magnetite 61 porphyry skarn 61 gabbro intrusive 61 skarn alteration 61 hematitic 61 Lynx Hibou system 61 porphyries 61 ENE trending 61 zero valent 61 surface mineable 61 cobalt sulphates 61 kimberlite breccia 61 volcaniclastic rocks 61 averaging #.#g t [002] 61 Podolsky mines 61 schists 61 Sisson Brook 61 felsic volcanic rocks 61 allanite 61 chlorite pyrite 61 favorable stratigraphy 61 chlorite carbonate 61 mineralogical studies 61 Bisha Main 61 Xstrata Nickel Raglan Mine 61 monzonite porphyry 61 hydrothermal breccias 61 flotation concentrate 61 alteration assemblage 61 epithermal silver 61 Bejucosa 61 Junnagunna 61 alteration assemblages 61 Moly Brook 61 sulphide veins 61 barium arsenic 61 Extension Occurrence 61 titanium oxide TiO 61 owned Cerro Jumil 61 eudialyte 61 gold copper porphyry 61 variably silicified 61 pegmatite dikes 61 altered ultramafic 61 Mineralization Extended 61 Zuun Mod deposit 61 chalcopyrite galena 61 Taysan Project 61 diabase 61 zirconium hafnium 61 hydrothermal breccia 61 floatation mill 61 Ixtaca 61 Quebrada Verde 61 ultramafic rock 61 nepheline syenite 61 potassic altered porphyry 61 coal anthracite bituminous 61 chromium manganese 61 tonalite 61 #.#g t [004] 61 intense hydrothermal alteration 61 Zinc Zn 61 fracture fillings 61 silicified breccia 61 disseminated sphalerite 61 skarn horizons 61 Drilling Resumes 61 Enger uranium projects 61 zinc ores 61 Tapuli Stora Sahavaara 61 Chimiwungo 61 Marge Vein 61 tungsten tin 61 stratigraphically below 61 granitic porphyry 61 #.#gpt gold [001] 61 quartz feldspar porphyries 61 Buesichem 61 Bokan Dotson Ridge 61 copper molybdenum zinc 61 ultramafic intrusives 61 calc silicate 61 argillic 61 epidote alteration 61 pegmatites 61 bedrock conductors 61 metres@#.# g t [003] 61 hornfelsed 61 Cerro Moly 61 HBET 61 Cu Eq 61 Amaruk property 61 polymetallic massive sulphide 61 equivalent CuEQ 61 siliceous breccia 61 quartz lode 61 altered tuff 61 Minita deposit 61 Amun Deeps 61 uraniferous 61 macrocrystic 61 epithermal veins 61 alteration halo 61 unoxidized 61 TiTac 61 pervasive silicification 61 hole MJV 61 haematite 61 polymetallic mineralization 61 Colnic 61 rhyolite breccia 61 Longshot Ridge copper 61 sulphidic 61 Uzboy 61 mineralized shear zone 61 sulphide concentrate 61 #ppm molybdenum [002] 61 manto style 61 unconformity type 61 REE minerals 61 altered diorite 61 Pelusa Property 61 pelitic gneiss 61 palladium Pd 61 mafic ultramafic intrusions 61 Kuriskova 61 Au Cu 61 biotite rich 61 Riviere Dore 61 PGM deposit 61 supergene mineralization 61 oxidized ore 61 hematite mineralization 61 leachability 61 volcanic breccias 61 gold mineralized quartz 61 serpentinized 61 #,# acre Angilak 61 Cu Zn Au Ag 61 fluorite mineralization 61 Nb Ta 61 diatreme breccia 61 pyrite veinlets 61 Foy Offset Dike 61 dacites 61 #m@#.#g t Au [003] 60 Cu Pb 60 magnetite bearing 60 epithermal quartz veins 60 sulphide ores 60 massive sulfides 60 geochemically anomalous 60 gabbroic rocks 60 anomalous mineralization 60 CaƱariaco Norte 60 calcareous sediments 60 Supergene 60 rich orogenic quartz 60 Cerro Blanco 60 Riscos 60 Palaeozoic sedimentary 60 Arsenopyrite 60 argentite 60 pyritic quartz 60 Cretaceous limestone 60 gangue 60 manganese zinc 60 vein swarms 60 #.#Mt grading [001] 60 Moz Au 60 orpiment 60 Volcanogenic Massive 60 Cu Ni Pt Pd 60 intermediate volcanic rocks 60 Silver Eq 60 West Gabbro Zone 60 Nithi Mountain 60 Copper Cobalt 60 Sinchao Property 60 Riviere Dore Copper 60 Nariin Sukhait 60 metavolcanic rocks 60 ankerite 60 Marta Este 60 mafic volcanics 60 iron titanium vanadium 60 dike swarm 60 Tantamaco 60 #.#gpt gold [002] 60 Pb Zn 60 sulfidation 60 gabbro dyke 60 oxide mineralization 60 garnet biotite 60 copper cobalt platinum 60 cyanide soluble copper 60 crackle breccia 60 sulfidation style 60 potentially mineable 60 silica breccia 60 carbonatite dykes 60 Colossus COOMIGASP joint venture 60 Kelex 60 Mankarga 60 Cumpie Hill 60 surficial 60 quartz tourmaline breccia 60 intersected weakly mineralized 60 sheeted quartz veinlets 60 hole NC# 60 mesothermal gold 60 SX EW processing 60 spodumene lithium 60 silicified limestone 60 Val d'Or Malartic 60 granitic gneiss 60 alteration haloes 60 ultrabasic 60 IOCG mineralization 60 magnetite alteration 60 lithium oxide 60 Maybrun 60 kimberlitic bodies 60 sheeted quartz 60 prolifically mineralized 60 disseminated sulphide mineralization 60 Piaba 60 pyrrhotite chalcopyrite 60 Oshiveli 60 hydrothermal magnetite 60 Anomalous values 60 aplite dykes 60 disseminated magnetite 60 Cr#O# 60 Skukum Creek gold 60 quartz porphyry 60 stockwork vein 60 Sulphides 60 bulk tonnage disseminated 60 aluminum silicate 60 granite gneiss 60 hypogene copper mineralization 60 Footwall Zone 60 sedimentary formations 60 talc chlorite 60 syenite intrusive 60 Lemarchant 60 banded quartz veins 60 Zuun Mod 60 mineralized zones intersected 60 specularite 60 monzonite 60 tailings reprocessing 60 South Minita 60 altered silicified 60 Heme iron 60 tin indium zinc 60 stringer sulphide mineralization 60 EW trending 60 Wicheeda 60 Fossey Zone 60 plutonic rocks 60 felsic volcanics 60 cerium Ce 60 placer deposits 60 feldspathic 60 gold geochemical anomalies 60 argillic alteration 60 Archean basement rocks 60 massive sulphide horizon 60 porphyry intrusions 60 Hassai 60 quartz carbonate 60 Eldor Project 60 Vetagrande 60 Nueva Caledonia 60 Zechstein 60 saprolitic 60 Preliminary metallurgical 60 open pittable gold 60 fine grained sandstone 60 commercially mineable 60 TGDH#D 60 Malundwe 60 Near Surface 60 carbonatite complex 60 disseminated chalcopyrite 60 intermediate metavolcanic rocks 60 #m@#.# % [003] 60 Hangingwall 60 Pt Pd Au 60 exhalative 60 sericite altered 60 anomaly coincident 60 magmatic kimberlite 60 #.#gpt [002] 60 VTEM conductors 60 phlogopite 60 Cannivan Gulch 60 Cusi Property 60 Tertiary volcanic rocks 60 paleo placer 60 anomalous concentrations 60 Archean Superior 60 Pierina Veladero 60 kimberlitic 60 interval assaying 60 Zafranal copper 60 Goldbanks 60 stockworked 60 mineralized outcrops 60 Letitna 60 previously unsampled 60 supergene zone 60 amphibolite 60 massive sulphide deposit 60 breccia zones 60 massive sulphide grading 60 Colquipucro 60 Pinwheel Zone 60 LURC# 60 vein breccias 60 Proterozoic aged 60 #.#g t silver [004] 60 quartz feldspar porphyry intrusive 60 Tumipampa exploration properties 60 gabbro dykes 60 PGM deposits 60 silicate minerals 60 sulphide mineralization 60 hydrothermal brecciation 60 andesites 60 extensional drilling 60 Australia ASX IVA 60 laterite deposits 60 banded iron 60 uraninite 60 vuggy 60 olivines 60 mafic rocks 60 clastic sediments 60 La Morocha 60 Copper Mineralization 60 solvent extraction electrowinning 60 lithocap 60 sulphidized 60 SEDEX 60 banded quartz vein 60 Porcupine Destor 60 NorthMet 60 monzodiorite 60 anomalous soil geochemistry 60 #m@#.# % [004] 60 mafic intrusions 60 argillites 60 Osisko Canadian Malartic 60 #,# g t 60 mineralized diorite 60 copper oxides 60 Beluga sapphire property 60 Hadal Awatib 60 #m@#.#g t Au [004] 60 metals tantalum lithium 60 El Rayo Silver 60 Lunguya 60 malachite mineralization 60 Gold Molybdenum 60 chalcopyrite mineralization 59 potassic altered 59 airborne geophysical anomalies 59 felsic dikes 59 porphyritic intrusive 59 bearing hydrothermal 59 Ag Pb 59 silicified breccias 59 La Parrilla mill 59 Gongondy 59 Mineralised 59 massive sulphide lenses 59 El Compas 59 pyrite magnetite 59 vein breccia 59 Ntaka Hill 59 Fold Nose 59 Silbak Premier Mine 59 tantalum oxide 59 yttrium oxide 59 chromium vanadium 59 sulphidation 59 Aricheng West 59 porphyry intrusion 59 copper molybdenum porphyry 59 ankerite alteration 59 potash alumina 59 Turquoise Ridge 59 chloritized 59 Au Ag mineralization 59 mineralized quartz 59 Cu Ag 59 Djambaye II 59 sulphide stockwork 59 sulphosalts 59 Magistral Project 59 chromite horizon 59 Pt + Pd 59 Ambrex 59 rhodium Rh 59 Animas vein 59 elements HREE 59 carbonatite 59 silver arsenic antimony 59 Soil geochemistry 59 neodymium praseodymium 59 breccia zone 59 Simuku 59 chlorite altered 59 #g t [001] 59 Fabie Bay 59 paragneisses 59 sulphide intersections 59 Twangiza Main 59 La Poma 59 Flin Flon Greenstone Belt 59 arsenic manganese 59 #.#gpt [001] 59 Early Joli Fou 59 sulphidation gold 59 massive sulfide 59 bearing stratigraphy 59 high sulphidation 59 Minas Corani 59 tuffaceous 59 Kavola East 59 heap leach recoveries 59 acid chloride 59 anomalous antimony 59 lithologic 59 chelates 59 Ouro Roxo 59 Cerro Maricunga 59 Santa Margarita vein 59 Tertiary volcanics 59 Anomalous gold 59 mineralized porphyry 59 argillic altered 59 Mineralized zones 59 brecciated zones 59 intermediate volcanics 59 -Expandable Memory 59 magnetite ilmenite 59 illite 59 Felsic 59 quartz veined 59 alkaline leaching 59 auriferous quartz veins 59 epithermal gold mineralization 59 Golouma South 59 nickel sulphide mineralization 59 Y Zr 59 rich VMS mineralization 59 KINSHASA Congo Fabulous 59 quartz molybdenite 59 mineralized horizons 59 mineralized diatreme breccia 59 sulphide alteration 59 arsenopyrite 59 Pantanillo 59 phyllites 59 pyritic 59 gneissic 59 sediments intruded 59 weakly mineralized 59 bearing skarn 59 wholly owned Snowfield 59 lithium enriched 59 Drill hole GCL# 59 Fe#O# 59 calc silicates 59 metasediment 59 pyrrhotite mineralization 59 yttrium Y 59 lanthanum neodymium 59 West Cedartree Gold 59 sulphides 59 Vortex Zone 59 mineralized shear 59 MLBlog Change 59 bastnaesite 59 granitic intrusive 59 ductile shear zones 59 carbonate veining 59 quartz stockwork 59 Ample Goldmax 59 quartz carbonate veins 59 geophysical signatures 59 interbedded 59 anomalous zinc 59 orogenic gold deposits 59 Katangan Copperbelt 59 resistivity anomalies 59 coarse pyrite 59 greenschist 59 Mineralization consists 59 tantalum niobium 59 Iron Titanium Vanadium 59 Ofin river 59 bastnasite 59 Uranium Vanadium 59 rhyolites 59 Zinc Mineralization 59 geochemical signature 59 ilmenites 59 Ag Zn Pb 59 disseminated pyrite 59 intrusive granitic 59 overburden stripping 59 Lemarchant Prospect 59 vanadium ore 59 Hoyle Pond underground 59 Kakanda Project 59 lithogeochemical 59 intersected sulphide 59 mineralized sandstone 59 amphibole 59 Tres Juanes Norte 59 sulphidation epithermal

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