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(Click for frequent words.) 70 porous sandstone 62 saline formations 62 pore spaces 62 impermeable clay 61 claystone 61 olivine rich 61 siliceous sediments 61 basalt volcanic 60 rubbly 60 earths crust 60 halite 60 overlying sedimentary 60 limestone bedrock 60 Jurassic sandstone 60 freshwater aquifer 60 pediment gravels 60 saline aquifers 60 abyssal plain 60 Athabasca sandstone 60 volcanic tuffs 60 carbonate formations 60 alluvial gravel 60 impermeable layer 60 overlying sandstone 59 calcareous sediments 59 permeable sandstone 59 volcanoclastic 59 sulfidic 59 glacial till 59 volcanic cinders 59 solidified lava 59 disseminated sulfide 59 silicate rocks 59 limestone caverns 59 impermeable membrane 59 caprock 58 outwash 58 tuffaceous rocks 58 overlying layers 58 clastic reservoirs 58 dolerite 58 anhydrite 58 sedimentary rock 58 felsic tuff 58 seafloor sediments 58 Cretaceous sandstone 58 fine grained sandstone 58 saprolitic 58 mylonite 58 felsic tuffs 58 Palaeozoic sedimentary 58 sediments deposited 58 lateritic 58 silicified limestone 58 dolostone 57 volcaniclastic rocks 57 fine grained sediment 57 windblown sand 57 stratigraphically below 57 andesitic volcanic rocks 57 granodiorite porphyry 57 sedimentary layers 57 ultramafic rock 57 lacustrine 57 vein quartz 57 Oligocene reservoir 57 dolomitized 57 dolomitic 57 underground coal seams 57 exhalite 57 seafloor methane 57 komatiite 57 chalcedonic silica 57 evaporite 57 pelite 57 Methane hydrate 57 dolomites 57 altered ultramafic 57 gabbroic 57 gabbros 56 granitic basement 56 Cretaceous limestone 56 granite gneiss 56 sand silt 56 hydrocarbon accumulations 56 receding glacier 56 unweathered 56 anomalously radioactive 56 cratons 56 lava flowed 56 anastomosing 56 limestone dolomite 56 clastic 56 colluvial 56 porous limestone 56 upflow 56 hydrocarbon saturation 56 volcanic caldera 56 serpentinized 56 felsic dyke 56 gypsum crystals 56 Jurassic limestone 56 Gamba sandstone 56 Paleozoic sedimentary 56 diabase 56 andesitic rocks 56 Devonian limestone 56 WNW trending 56 tailings piles 56 saline aquifer 56 fine grained sedimentary 56 ignimbrite 56 sulphidic 56 quartz feldspar 56 hornblende 56 eluvial 56 freshwater aquifers 56 ferruginous 56 biotite rich 56 variably mineralized 56 hydrated silica 56 molten magma 56 coquina rock 55 Lower Jurassic 55 igneous intrusions 55 Paleozoic carbonate 55 granitic rock 55 Floridian aquifer 55 Birimian metasediments 55 geotextile fabric 55 Sediment cores 55 hematite stained 55 shale sedimentary 55 silicified rhyolite 55 hydrologically connected 55 ignimbrites 55 granitoids 55 Navajo Sandstone 55 Cambrian Ordovician 55 quartz feldspar porphyry intrusive 55 magma chamber 55 finely disseminated 55 pelitic 55 Cretaceous carbonate 55 gossanous 55 paleochannels 55 layered ultramafic 55 carbonate reservoir 55 intersected sulphide 55 Carbonera C7 55 unlined pits 55 peridotite 55 seabed sediments 55 hematite goethite 55 quartz vein stockworks 55 iron sulfide 55 drilling muds 55 Balarat Project 55 skarn horizons 55 pyroclastic material 55 extrusive 55 Korkan target 55 hydrate deposits 55 kerogen 55 sedex 55 abyssal plains 55 Felsic 55 rockfill 55 mudstones 55 undrained 55 tailing piles 55 REE enriched 55 pitchblende 55 diorite dyke 55 garnet skarn 55 mafic intrusives 55 Precambrian rocks 55 Alaskite 55 insolubles 55 wallrocks 55 Endrod 55 gold arsenic antimony 55 fine grained sediments 55 calcium bicarbonate 55 Kamoamoa eruption 55 basaltic rocks 55 pelitic gneiss 55 arenite 55 siliciclastic 55 sandstone formations 55 #,#-#,# ft. 55 limestone aquifer 55 geologic formations 55 silica breccia 55 terminal moraine 55 Jurassic formations 55 volcanic tuff 55 disseminated pyrrhotite 55 paleochannel 55 volcanic basalt 55 ODM# 55 contaminant plume 54 glacial outwash 54 Caballos Formation 54 phyllosilicate 54 Sierras Blancas 54 Cretaceous Jurassic 54 brecciated silicified 54 hydrothermal fluid 54 Widely spaced 54 Middle Devonian 54 tight sandstone formations 54 quartz pyrite veins 54 underground shale formations 54 quartz alunite alteration 54 bermed 54 volcanic sediments 54 amphibolite grade 54 uncompacted 54 sedimentary deposits 54 mudstone 54 acquifers 54 Mancos shale 54 Porong River 54 Pyrrhotite 54 conical dome 54 Storing carbon dioxide 54 quartz feldspar porphyry 54 limonitic 54 geothermal gradient 54 anorthosite 54 brecciated volcanic rocks 54 iron carbonate 54 quartz biotite 54 pillow lavas 54 fault scarp 54 carbonate sediments 54 volcanoclastic rocks 54 Paleozoic sediments 54 placer workings 54 Lemarchant prospect 54 overlying sediments 54 ultramafic intrusives 54 Twangiza Main 54 angular boulders 54 quartz sulphide vein 54 pyrite stringers 54 bentonite clay 54 silty limestone 54 lunar magma 54 shallower Cretaceous 54 calcic 54 serpentinite 54 shallowly buried 54 Triassic formations 54 glacially carved 54 porphyritic intrusive 54 Wollaston Domain 54 stockwork breccia 54 coalbed 54 amorphous silica 54 supergene copper 54 fragmental 54 hematitic 54 mica schist 54 hypogene 54 sheared mafic 54 carbonaceous mudstone 54 fine grained sedimentary rock 54 basaltic rock 54 permanently shadowed lunar 54 intensely silicified 54 banded quartz 54 pyroclastics 54 clastic sediments 54 rhyolite breccia 54 subaqueous 54 igneous intrusive 54 chalcedonic 54 amphibolites 54 volcaniclastics 54 syenite gneiss 54 mafic intrusion 54 rhyolite porphyry 54 hornfelsed 54 Lomita Pina 54 naturally occurring radium 54 moulins 54 pyrite altered 54 molten rocks 54 altered granodiorite 54 unmineralized 54 brecciated limestone 54 quartz sericite pyrite 54 kaolinite 54 Barail 54 mineralized mafic 53 geological formations 53 subsurface 53 carbonaceous shale 53 bearing hydrothermal fluids 53 silicate minerals 53 sulfide bearing 53 sedimentary formations 53 meta sedimentary 53 mineralized diorite 53 feldspar porphyry 53 Mount Bosavi 53 hydrothermal fluids 53 alteration halo 53 micaceous 53 alluvial sediments 53 El Manto 53 Navajo sandstone 53 replenish aquifers 53 chrysocolla 53 basaltic 53 conglomeratic 53 schistose 53 depositional 53 porphyritic andesite 53 sedimentary layer 53 hematite magnetite 53 cherty 53 Patchawarra 53 glacial overburden 53 Drumlummon vein 53 variably altered 53 amphibolite 53 chloritized 53 manto mineralization 53 greywacke 53 Archean basement rocks 53 variably silicified 53 limestone cavern 53 anomalous molybdenum 53 alteration halos 53 altered ultramafic rocks 53 outcropping quartz veins 53 Arctic permafrost 53 pyrite veins 53 Caracol Formation 53 rainwater seeps 53 evaporite deposits 53 volcanic breccias 53 Permo Triassic 53 waterfall cascades 53 magmatic hydrothermal 53 compacted clay 53 underground geologic formations 53 surface geochemical anomalies 53 tuffaceous 53 tonalite 53 felsic metavolcanic 53 alluvial soils 53 ft TVD 53 lush ferns 53 pyrite halo 53 gabbro intrusive 53 carbonate minerals 53 alluvial aquifer 53 intrusive breccia 53 turbid water 53 scheelite bearing 53 carbonatized 53 Banded Iron Formation 53 polymetallic sulphide 53 kimberlitic bodies 53 basalt flows 53 specular hematite 53 abyssal depths 53 carbonaceous material 53 clastics 53 tinted crimson 53 coalbeds 53 chloride salts 53 chromitite 53 sheared ultramafic 53 clastic rocks 53 bearing breccias 53 footwall alteration 53 metasediment 53 stockwork veins 53 andesitic 53 footwall rocks 53 groundwaters 53 argillaceous 53 McMurdo Dry Valleys 53 Rotliegend sandstone 53 circular depressions 53 silicified zone 53 crackle breccia 53 secondary chalcocite 53 diorites 53 milky quartz 53 cherts 53 Skarn Zones 53 peat soils 53 weakly mineralized 53 Cenomanian 53 claylike 53 altered felsic volcanic rocks 53 deoxygenated 53 granitic rocks 53 xenoliths 53 pyritized 53 vuggy 53 mineralized peridotite 53 basalt formations 53 unconsolidated sediments 53 stalactites stalagmites 53 Section #E [001] 53 peaty soil 53 stratigraphically 53 Proterozoic sediments 53 acid leached 53 unmelted 53 Selwyn Basin 53 felsic dike 53 peridotite sill 53 metavolcanic 53 Messinian 53 Karoo sediments 53 mafic intrusive 53 permafrost melts 53 karst limestone 53 vugs 53 silicified rocks 53 Leprechaun Pond 53 gold mineralized quartz 53 sedimentation ponds 53 pegmatitic 53 chalcopyrite bornite 53 flowable fill 53 altered porphyry 53 mafic rocks 53 layered sedimentary rock 53 basalt rock 53 ultramafic intrusive 53 volcano sedimentary sequence 52 adsorbed onto 52 lapilli tuff 52 glacial fjord 52 crystal tuff 52 calcareous 52 stockwork veining 52 bearing stratigraphy 52 siltstones 52 Nitrogen N2 52 coarser grained 52 lapilli 52 unsampled 52 Villeta T 52 glacial moraine 52 silicon monoxide 52 lepidolite 52 dunite 52 silicified zones 52 uraniferous 52 gabbroic intrusion 52 esker 52 contamination Nishiyama 52 Memouniat Formation 52 pyrite marcasite 52 underground geological formations 52 sericite schist 52 sedimented 52 volcano sedimentary rocks 52 volcaniclastic 52 tarlike 52 Kometan 52 Upper Triassic 52 anticlines 52 Berea sandstone 52 itabirite 52 syenite intrusive 52 talus slopes 52 Turonian 52 silicified breccia 52 quartz latite 52 Sedimentary rocks 52 rhyolite tuff 52 emergent vegetation 52 Malrok 52 Archean aged 52 felsic dikes 52 Cretaceous sediments 52 sandstone horizons 52 marine sediments 52 Nukhul 52 potassically altered 52 turbidites 52 sericite altered 52 microbialites 52 microscopic pores 52 antarctic ice 52 north easterly trending 52 albitite 52 brecciated quartz 52 Chromitite 52 graphitic horizons 52 altered felsic 52 hydrocarbon reservoirs 52 quartz calcite 52 porphyritic 52 mineralized intrusive 52 Zechstein 52 hole EJD# 52 seafloor sediment 52 lunar soil 52 gabbro 52 silts 52 Mesozoic sedimentary 52 Matala deposit 52 stratigraphic sequence 52 exhalative 52 metasedimentary 52 Methane hydrates 52 Troodos Ophiolite Complex 52 shallow overburden 52 quartz monzonite 52 crestal 52 siliceous breccia 52 mineralized dikes 52 limestones 52 Lake Vostok 52 clay subsoil 52 Vasari fresco 52 hydroxyl molecules 52 fecal pellets 52 interlayered 52 supergene enriched 52 chromitite layers 52 manganese oxides 52 locally graphitic 52 andesitic volcanic 52 clathrates 52 magnetite hematite 52 Granite Wash formation 52 sandstone bluffs 52 kimberlite breccia 52 igneous rock 52 unmineable 52 bedrock outcrops 52 lithium boron 52 lamproite 52 Aptian 52 stromatolite 52 mineralized alteration 52 abundant pyrite 52 Lower Proterozoic 52 groundwater seepage 52 latite 52 altered andesite 52 upland forests 52 diatremes 52 Saxman Mine 52 excavated trench 52 methane hydrate 52 tonalitic 52 pyrite magnetite 52 inert nitrogen 52 monzonite 52 silicified outcrops 52 pyritic 52 silica pyrite 52 Palaeozoic 52 argentiferous 52 moisture seeps 52 pelitic gneisses 52 sandstone reservoir 52 Ostracod 52 intensely oxidized 52 Whillans Ice Stream 52 OGX 2A 52 glacial sediments 52 digester tanks 52 sediment 52 epoxy putty 52 Yukon Tanana 52 fracture fillings 52 Constancia Zone 52 shallow weedy 52 felsic intrusions 52 impoundment ponds 52 diatreme breccia 52 Upper Jurassic 52 silicified andesite 52 soakaway 52 sulphidized 52 injecting pressurized 52 quartz pebble conglomerate 52 calcareous sandstone 52 tailing impoundment 51 detrital 51 mineralized skarn 51 bacterial mats 51 pyrrhotite chalcopyrite 51 ingression 51 erosional 51 reservoir sandstones 51 Cretaceous sandstones 51 Martian crust 51 granodiorites 51 thinly bedded 51 oxidises 51 Yaxtché deposit 51 gneissic 51 subtidal 51 enargite 51 potentially bulk minable 51 limestone boulders 51 unconformably overlain 51 palaeo channel 51 drillhole intersected 51 rhyodacite 51 overthrust belt 51 B Chromitite 51 Riscos 51 hydraulically fracture 51 J1B 51 Ordovician limestone 51 aluminous 51 pyroxenites 51 erupting lava 51 quartz hematite 51 Cannery Loop 51 basaltic lava 51 carboniferous 51 quartz veined 51 sandstone limestone 51 Sulphurets deposit 51 granitoid 51 calc silicate skarn 51 sediments 51 borehole drilled 51 comet nuclei 51 Rotliegend 51 altered granitic 51 chlorite epidote 51 shallow depressions 51 altered rhyolite 51 felsic volcanic 51 Klaza Zone 51 hypabyssal 51 altered diorite 51 outcropping veins 51 quartz adularia 51 matrix porosity 51 auriferous zones 51 Tertiary volcanic rocks 51 altered volcanics 51 geologic formation 51 unoxidized 51 mineralized mantos 51 paleo placer 51 sulfate minerals 51 tarry substance 51 graphane 51 chalcopyrite pyrrhotite 51 vertical diatreme breccia feeder 51 quartz boulders 51 supergene mineralization 51 carbonaceous shales 51 sulphide bearing 51 shallow aquifer 51 coral skeletons 51 subglacial lake 51 porphyry breccia 51 subcrop 51 karstic 51 altered tuff 51 feldspar porphyry intrusive 51 prospective stratigraphy 51 breccia pipes 51 diorite intrusions 51 clasts 51 westerly dipping 51 turbidite 51 salt dome caverns 51 scoria 51 metasomatic 51 talc chlorite 51 manganese nodules 51 structural stratigraphic 51 ultramafics 51 Copperstone Fault 51 open pitable 51 Mineralization occurs 51 lunar crust 51 kimberlitic material 51 depositional environment 51 rhyolites 51 volcanic lava 51 Peat bogs 51 colluvium 51 quartz stringers 51 subhorizontal 51 icelike 51 methane hydrates exist 51 atomically flat 51 calcium sulphate 51 graphitic sediments 51 Tertiary sediments 51 Lake Untersee 51 vuggy silica 51 strongly altered mafic 51 talus fines 51 Leduc Formation 51 deep saline aquifer 51 vuggy silica breccias 51 crevassed 51 respired 51 rainwater seeping 51 sulphide deposits 51 Middle Jurassic 51 magnetite skarn 51 gravel quarries 51 Fram Strait 51 polar craters 51 subsurface aquifers 51 spodumene bearing 51 weak carbonic acid 51 sedimentary sequences 51 Au Cu mineralization 51 Precambrian basement 51 strongly silicified 51 reinjects 51 silicic 51 forested uplands 51 mineralized quartz vein 51 mafic volcanic 51 Thor Trend 51 un oxidized 51 metamorphic rock 51 Lower Caballos 51 granitic intrusions 51 grade massive sulphides 51 Jurassic carbonate 51 antimony mineralization 51 hole CJV 51 martian rocks 51 metamorphic rocks 51 sulphide breccia 51 overlying 51 mineralized quartz 51 Transantarctic Mountains 51 Tertiary volcanics 51 chlorite sericite 51 norite 51 calcareous siltstones 51 K feldspar 51 lightly sanded 51 intermediate tuffs 51 Greenland glacier 51 magma molten rock 51 mineralize 51 vuggy silica quartz alunite 51 Thorthormi 51 siderite 51 Messenger Formation 51 alluvial gravels 51 foil pouch containing 51 granodioritic 51 limestone outcrops 51 grabens 51 magma cools 51 intersected disseminated 51 volcanogenic 51 manganese mineralization 51 goethite 51 stratified layers 51 ancient lava flows 51 basalt lava 51 Jurassic reservoir 51 veins breccias 51 basalt rocks 51 gangue 51 altered andesitic 51 bedrock aquifers 51 disseminated pyrite mineralization 51 Miogyp 51 #,#-#,# ft. Loc 51 epithermal silver 51 surface mineable 51 Pannonian 51 stratigraphic horizons 51 felsic rocks 51 Puajanca Zone 51 pyrites 51 tuffs 51 sulphide mineralized 51 within komatiitic extrusive 51 siltstone 51 tubeworm 51 desolate expanse 51 stalactite 51 argillic altered 51 Kareem Formation 51 Platoro Reservoir 51 Basal Conglomerate 51 resevoirs 51 Keg River 51 hydrothermally altered 51 seafloors 51 olivine crystals 51 fault scarps 51 alaskite 50 Laurentide Ice Sheet 50 Shallower 50 skarn alteration 50 lava tubes 50 degassed 50 colorless odorless radioactive 50 Miocene sands 50 crunches underfoot 50 stratigraphically controlled 50 pyroxene 50 graben 50 Geologic mapping 50 quartz pyrite 50 fumarole 50 plagioclase 50 Heap leaching 50 peridotites 50 altered mafic 50 surfactant molecules 50 colder denser 50 strongly chloritized 50 Cerro Moly 50 subterranean caves 50 Keathley Canyon block 50 erosional window 50 hydrothermal magnetite 50 Lower Oligocene 50 beetles burrow 50 phyllite 50 arsenic manganese 50 volcanic vent 50 methane hydrates 50 Steep slopes 50 meter Piz Vatgira 50 stilling basin 50 paragneiss 50 groundwater aquifer 50 petroglyphs carved 50 Mesaverde Formation 50 Tertiary volcanic 50 Cu PGE 50 AKK# 50 copper nickel sulphide 50 calcite 50 quartz feldspar porphyries 50 Brackish water 50 ultra mafic 50 silica carbonate 50 NI #-# Inferred 50 syncline 50 hydrocarbon accumulation 50 Carbonera C 50 Van Deeman 50 argentiferous galena 50 Alpha #S# 50 Eagle Nest deposit 50 silty clay 50 interbedded 50 impermeable 50 quartz stockworks 50 potentially open pittable 50 perforated interval 50 cavern 50 BP ruptured Macondo 50 pyrite stockwork 50 sylvinite 50 lamprophyre dykes 50 basal sands 50 disseminated sulfides 50 altered dacite 50 slackwater 50 felsic dykes 50 adjacent uplands 50 Contaminated groundwater 50 Xstrata Copper Las Bambas 50 Paleozoic rocks 50 heterolithic 50 intrusive dykes 50 mineralized felsic 50 basalts 50 Balmer Assemblage 50 sulfide minerals 50 surficial aquifer 50 streambeds 50 Late Paleozoic 50 unheated basements 50 sulfide veins 50 Petrophysical analysis 50 pyrite pyrrhotite chalcopyrite 50 volcano sedimentary 50 volcaniclastic kimberlite 50 silicate mineral 50 Glendo Reservoir 50 Shale formations 50 rock formations 50 open pittable gold 50 anomalous concentrations 50 pollen particles 50 disseminated sulphide mineralization 50 diatreme breccias 50 tidal salt marsh 50 sulfidation 50 sedimentary strata 50 Kali Kuning 50 calcrete 50 quartz magnetite 50 gas hydrates 50 trending shear zone 50 Guatemala sinkhole 50 copper skarn 50 filter feeders sucking 50 glacial silt 50 Seepage detected 50 schists 50 revegetated 50 rhyolitic 50 paragneisses 50 pillow lava 50 iron sulfate 50 EW trending 50 alluvial deposits 50 Viola Limestone 50 pillow basalts 50 rotted timbers 50 solar evaporation ponds 50 Butmah 50 acidized 50 subsurface soils 50 methane CH4 50 garimpeiro workings 50 freshwater lakes rivers 50 Geochemical analysis 50 granitoid rocks 50 chlorite schist 50 vein stockwork 50 overthrust 50 siliceous 50 gurgling muddy 50 zinc sulphides 50 Chuitna River 50 intermittent streams 50 Beaverhill Lake 50 stratigraphic interval 50 unmineable coal seams 50 cinder cones 50 secondary clarifiers 50 UG2 reefs 50 Brimstone pit 50 molybdenite occurs 50 rootballs 50 gneissic rocks 50 Wireline logs 50 chloritic 50 mineral olivine 50 unconformably 50 ultrabasic 50 calcite veins 50 South Miwah Bluff 50 Naybob 50 shallow aquifers 50 drillhole spacing 50 Chert 50 Iris Norte 50 Quartz Breccia 50 calcite crystals 50 phosphorous potassium 50 calcium oxide 50 magnesium salts 50 Philippine volcano spews 50 Eufaula Elevation 50 Cohansey aquifer 50 Pipe alteration 50 alluvium 50 Chryse Planitia 50 slushy crystalline form 50 shear veins 50 metal zonation 50 Lower Goru 50 surface outcrops 50 Hiram Brook 50 porphyry skarn 50 iron sulphides 50 hydrate crystals 50 gabbro dykes 50 reservoir permeability 50 vuggy quartz 50 phreatic 50 subsoils 50 bicarbonate ions 50 decalcified 50 clathrate