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(Click for frequent words.) 64 overlying layers 63 pediment gravels 63 porous sandstone 63 silicate rocks 62 rubbly 62 colliding tectonic plates 62 hydrated silica 62 disseminated pyrrhotite 61 claystone 61 sediments deposited 61 turbidites 60 impermeable shale 60 basalt volcanic 60 biotite rich 60 halite 60 molten magma 60 asthenosphere 60 saprolitic 60 metamorphic rock 60 Jurassic limestone 60 basaltic lava 60 unconsolidated sediments 60 sedimentary deposits 60 volcanic cinders 59 basaltic rocks 59 acid leached 59 oceanic plates 59 quartz boulders 59 magma chamber 59 upflow 59 earth crust 59 felsic tuff 59 volcanic tuff 59 magmatic hydrothermal 59 granite gneiss 59 quartz pyrite veins 59 outwash 59 garnet skarn 59 metal zonation 59 coral skeletons 58 volcanic lava 58 basalt rocks 58 seabed sediments 58 lithological contacts 58 ejecta blanket 58 alluvial gravel 58 abyssal plain 58 colluvium 58 overlying sedimentary 58 tectonic plate boundaries 58 wax melts 58 pelite 58 sedimentary layers 58 unsampled 58 xenoliths 58 granitic basement 58 Balarat Project 58 brecciated silicified 58 dunite 58 rockfill 58 crustal rocks 58 olivine rich 58 overlying sandstone 58 mylonite 58 elastic deformation 58 seafloor sediments 58 silicate mineral 58 silica breccia 57 anticlines 57 limestone bedrock 57 limonitic 57 REE enriched 57 carbonaceous mudstone 57 clasts 57 bedrock outcrops 57 tuffaceous rocks 57 Palaeozoic sedimentary 57 cenospheres 57 hematite stained 57 felsic tuffs 57 silica carbonate 57 windblown sand 57 manto mineralization 57 bearing stratigraphy 57 placer workings 57 silicate dust 57 calcareous sediments 57 Syrtis Major 57 pyroclastic material 57 granite bedrock 57 hydrothermal fluid 57 olivines 57 saline aquifers 57 oceanic crust 57 serpentinized 57 basaltic rock 57 dolerite 57 Paleozoic sediments 57 crossbedding 57 seafloors 57 manganese oxides 57 volcanoclastic rocks 57 brittle deformation 57 alluvial sediments 56 unweathered 56 supergene copper 56 granitoids 56 meta sedimentary 56 solidified lava 56 igneous intrusions 56 altered ultramafic rocks 56 disseminated sulfide 56 ultramafic intrusives 56 bearing sulphides 56 zinc sulfide 56 pore spaces 56 shallow overburden 56 volcanic sediments 56 siliceous sediments 56 quartz feldspar 56 dolostone 56 lithospheric 56 uncompacted 56 Methane hydrate 56 volcanogenic 56 mica schist 56 cinder cones 56 Longmen Shan fault 56 granitic rock 56 intraplate 56 sedex 56 metamorphic rocks 56 coarse pyrite 56 lepidolite 56 basalt flows 56 B Chromitite 56 hematite goethite 56 colluvial 56 peridotitic 56 dense clumps 56 topmost layer 56 recrystallized 56 molten rocks 56 ignimbrites 56 lateritic 56 iron sulfide 56 dolomites 56 massive galena 56 gabbros 56 lava flowed 56 Earths crust 56 peaty soil 56 pyrite galena 56 quartz biotite 56 secondary chalcocite 56 argentiferous 56 erosional 56 Lengai 56 radially outward 56 angular boulders 55 zinc sulphides 55 stockwork veins 55 overlying sediments 55 post perovskite 55 amorphous silica 55 pyrite halo 55 sulfide bearing 55 basalt cliffs 55 basalt rock 55 eclogite 55 igneous intrusive 55 layered ultramafic 55 cratons 55 calcic 55 volcanic caldera 55 basalt 55 Arsia Mons 55 hydrothermal magnetite 55 oxidises 55 Berea sandstone 55 potassically altered 55 infalling gas 55 pegmatitic 55 sulfidic 55 altered mafic volcanics 55 phyllosilicate 55 westerly dipping 55 pyrite stringers 55 rhyolite tuff 55 overhanging cliffs 55 variably silicified 55 paleochannel 55 komatiite 55 milky quartz 55 ROM ore 55 glacial till 55 Vasari fresco 55 Gamba sandstone 55 epidote alteration 55 circumstellar disk 55 tonalite 55 carboniferous 55 andesitic rocks 55 shallowly buried 55 olivine crystals 55 granodiorite porphyry 55 hematite mineral 55 fracture fillings 55 Alaskite 55 pelites 55 anastomosing 55 pillow lavas 55 rhyolite porphyry 55 bark peels 55 galaxy supermassive black 55 carbonaceous material 55 lapilli 55 flood basalts 55 syenite gneiss 55 crackle breccia 55 lobate 55 silicified limestone 55 Widely spaced 55 Martian dunes 55 Athabasca sandstone 55 mafic flows 55 ancient lava flows 55 fine grained sandstone 55 glacial overburden 55 ignimbrite 55 glacial moraine 54 malachite mineralization 54 lunar craters 54 iron sulphides 54 lunar magma 54 diorite dyke 54 silicate minerals 54 eluvial 54 WNW trending 54 insolubles 54 evaporite 54 crystallites 54 mafic intrusion 54 coarser grained 54 bearing breccias 54 brecciated quartz 54 mafic dykes 54 quartz feldspar porphyry intrusive 54 Plate tectonics 54 komatiitic 54 volcanic tuffs 54 chalcedonic 54 Lemarchant prospect 54 supergene enriched copper 54 moisture seeps 54 gabbroic intrusion 54 impermeable clay 54 Navajo Sandstone 54 silicate mantle 54 cavitations 54 arsenopyrite pyrite 54 mafic intrusive 54 porous limestone 54 mildly radioactive 54 aluminous 54 subhorizontal 54 Cretaceous sandstones 54 silicified zone 54 magma cools 54 igneous intrusion 54 argillaceous 54 copper oxides 54 pyrrhotite mineralization 54 extrusive 54 quartz sericite 54 porphyritic andesite 54 Yellowstone Caldera 54 crystalline solids 54 Cretaceous sediments 54 Jurassic sandstone 54 strongly silicified 54 loess 54 brittle ductile 54 tectonic uplift 54 underground coal seams 54 magma chambers 54 stockwork breccia 54 hematite magnetite 54 Earth crust 54 saline formations 54 economically extractable 54 pyrites 54 potassium feldspar 54 anhydrite 54 McMurdo Dry Valleys 54 geological stratum 54 dacitic 54 surface geochemical anomalies 54 mineralized diorite 54 lava eruptions 54 hummocky 54 - -TODAY 'S MAIL 54 ultramafic rock 54 sheared mafic 54 cherts 54 microfossil 54 altered porphyry 54 gabbro dykes 54 detrital 54 electromagnetic EM conductors 54 Floridian aquifer 54 chrysocolla 54 metasomatic 54 alteration halo 54 bentonite clay 54 tectonic plate slides 54 glacial sediments 54 carbonate sediments 54 Ares Vallis 54 sulfide minerals 54 quartz sericite alteration 54 pyrite magnetite 54 wooden derrick 54 silicified rhyolite 54 pyrophyllite 54 crystal lattices 54 insitu 54 UG2 reefs 54 photic zone 54 brecciated zones 54 lithosphere 54 Siple Dome 54 diatremes 54 lunar crust 54 vein quartz 54 gypsum crystals 54 seafloor methane 54 microscopic bubbles 54 Snake River Plain 54 mineralized breccias 54 mineralized boulders 54 stony meteorites 54 volcanic basalt 54 Cerberus Fossae 54 hornblende 54 quartz calcite 54 mineralized quartz vein 53 BIF outcrops 53 impermeable membrane 53 mineralized gabbro 53 skarn horizons 53 volcaniclastics 53 finely disseminated 53 seafloor sediment 53 layered sedimentary rock 53 pelitic gneiss 53 lunar equator 53 Martian crust 53 intensely silicified 53 mafic intrusives 53 glows brightly 53 eclogitic 53 subaqueous 53 disseminated chalcopyrite 53 claylike 53 advanced argillic alteration 53 chemically processed 53 impermeable layer 53 Tycho supernova remnant 53 Kamoamoa eruption 53 calc silicate skarn 53 coiled wire 53 Pu'u O'o 53 pitchblende 53 shadowed craters 53 wallrocks 53 anorthosite 53 uraniferous boulders 53 geothermal gradient 53 inverted cone 53 Twangiza Main 53 alluvial gravels 53 Paleozoic carbonate 53 mineral hematite 53 brownish haze 53 receding glacier 53 palaeochannels 53 quartz stringers 53 osmium 53 basalt formations 53 karstic 53 metallic ions 53 argillic altered 53 vein outcrops 53 fault scarp 53 3cm thick 53 Polycyclic aromatic hydrocarbons 53 groundwater seepage 53 andesite flows 53 mineralized dikes 53 Mount Bosavi 53 sand silt 53 VTEM conductor 53 tarry crude 53 surface hoar 53 dyke swarms 53 quartz stockworks 53 hydrothermal fluids 53 tufa 53 pyrite veinlets 53 ferrous oxide 53 silica sulphide 53 paleochannels 53 placer deposits 53 altered andesitic 53 paragneiss 53 refinable 53 eolian 53 firn 53 dentine 53 talus 53 alteration halos 53 shallow depressions 53 Balmer Assemblage 53 glacially carved 53 Anomalous radioactivity 53 evaporite minerals 53 phreatic 53 volcanic craters 53 iron carbonate 53 silts 53 granitic pegmatite 53 calcium sulphate 53 dirts 53 granitic rocks 53 quartz adularia 53 motorized rasp 53 massive sulphide horizon 53 pyrite marcasite 53 schistose 53 Cambrian Ordovician 53 clastic sediments 53 mineralize 53 oxide layer 53 expose coal seams 53 Reiner Gamma 53 geotextile fabric 53 subducting plate 53 specular hematite 53 isotope composition 53 hydrothermally 53 pegmatite hosted 53 altered granodiorite 53 compressive stress 53 felsic metavolcanic 53 mineralized skarn 53 microscopic crystals 53 smectite 53 thermally mature 53 cinder cone 53 circumstellar 53 corrugation 53 stalactite 53 Calcium carbonate 53 crystalline silicates 53 Bayan Obo 53 continental crust 53 norite 53 permafrost melts 53 intensely oxidized 53 shear veins 53 fossilized bone 53 mineralized felsic 53 abyssal plains 53 rhyodacite 53 hematite alteration 53 amphibolites 53 rhyolite dikes 53 Copperstone Fault 53 toroid 53 latite 53 tectonic faults 53 terminal moraine 53 Felsic 53 crustal 53 silicate grains 53 scoria 53 Cretaceous sandstone 53 sandstone slab 53 andesitic volcanic rocks 53 volcanic lava flows 53 asphaltenes 53 spheroidal 53 towering blast furnace 53 Chromitite 52 lithium boron 52 tailing piles 52 carbonate alteration 52 pyroclastics 52 geomorphic 52 rhyolite tuffs 52 deoxygenated 52 circular depressions 52 sulphide deposits 52 papery skin 52 magnetite skarn 52 silty limestone 52 Thicknesses 52 alaskitic 52 conglomeratic 52 tectonic stresses 52 Navajo sandstone 52 tailings piles 52 icicle shaped 52 calcite crystals 52 depositional environment 52 magnetite hematite 52 Precambrian basement 52 gumline 52 Tectonic plates 52 tectonic plate movements 52 lapilli tuff 52 altered ultramafic 52 alluvial plains 52 Leduc Formation 52 Cretaceous limestone 52 compressional 52 supergene mineralization 52 vaporises 52 mineralized shears 52 spontaneous fission 52 mantle convection 52 silica pyrite 52 hematitic 52 atmospheric moisture 52 carbonate formations 52 Tertiary volcanics 52 radioactive nuclides 52 Herschel Crater 52 hematite chlorite 52 martian rocks 52 quartz hematite 52 Melas Chasma 52 isotherms 52 ounces Moz. 52 Puu Oo 52 emits gamma rays 52 magnetic excitations 52 amphibolite 52 isotopic ratios 52 alluvium 52 sedimentary layer 52 tideline 52 graphane 52 nitride layer 52 gabbroic 52 uranophane 52 gossan zones 52 rootballs 52 volcanic ridges 52 drilling muds 52 chlorite epidote 52 concretion 52 igneous rock 52 quartz arsenopyrite 52 karst topography 52 massifs 52 sandstone slabs 52 Klaza Zone 52 encrustation 52 chalcopyrite pyrrhotite 52 Fe Mn 52 Shiveluch 52 limestone aquifer 52 unoxidized 52 tectonic boundary 52 domal 52 pyrope garnet 52 allanite 52 Siberian Traps 52 rusted rebar 52 skarn alteration 52 hydrocarbon accumulations 52 pyrrhotite chalcopyrite 52 Kambalda style 52 silicic 52 magnesium silicate 52 carbonatized 52 unmineralized 52 scheelite 52 Devonian limestone 52 coralline 52 Wallula Gap 52 gravels 52 ENE trending 52 porphyry dykes 52 orthogonally 52 Subcutaneous fat 52 silicified breccia 52 Veil Nebula 52 Matala deposit 52 plagioclase 52 banded epithermal 52 stromatolite 52 quartz carbonate veining 52 pyroclastic 52 outcrop exposures 52 vuggy 52 Candor Chasma 52 bearing skarn 52 granitoid hosted 52 opaline 52 pyrite pyrrhotite chalcopyrite 52 peridotites 52 sedimented 52 amphibole 52 amphibolite facies 52 lacustrine 52 sedimentary formations 52 earths surface 52 Transantarctic Mountains 52 Wollaston Domain 52 Tranquilo Trend 52 downhole geophysics 52 suspender cables 52 zinc sulphide 52 stratigraphically below 52 iron pyrite 52 gangue 52 alkalic 52 Si substrate 52 fault scarps 52 kimberlite breccia 52 subcrop 52 quartz magnetite 52 quartz veinlet 52 epithermal stockwork 52 tiny flecks 52 altered felsic volcanic rocks 52 polyethylene liner 52 supergene enrichment 52 moisture condenses 52 sequestering CO2 52 basaltic magma 52 sedimentary rock 52 Vatnajökull 52 sulfide deposits 52 ancient lakebed 52 Superheated 52 quartz alunite 52 antarctic ice 52 Au Cu mineralization 52 sandstone formations 52 intrusive porphyry 52 vuggy silica quartz alunite 52 Molucca Sea 52 lunar soil 52 microcrystals 52 Orcus Patera 52 undrained 52 chromitite layers 52 lava tubes 52 volumetrically 52 silicified andesite 52 Poplar Deposit 52 quartz breccia 52 igneous rocks 52 graben structure 52 stratiform 52 sheared ultramafic 52 kaolinite 52 marine sediments 52 autunite 52 sulphide mineralized 52 alluvial plain 52 tensile stresses 52 basalts 52 Kelut 52 fragmental 52 basalt columns 52 felsic dyke 52 lowermost mantle 52 outer crust 52 ferric oxides 52 sericitized 52 silicified rocks 52 greywacke 52 bastnaesite 52 altered mafic 52 boiler flue 52 gabbro intrusive 52 Pavonis Mons 52 El Manto 52 corundum 52 pyroxenites 52 Kilauea caldera 52 eskers 51 DNA helix 51 sulfidation 51 locally graphitic 51 freshwater aquifer 51 Sicily Mount Etna 51 manganese mineralization 51 sandstone boulder 51 JM Reef 51 quartz feldspar porphyries 51 mineralized alteration 51 felsic intrusions 51 hematized 51 quartz barite 51 geophysically 51 glacial silt 51 silicon monoxide 51 erupting lava 51 Jupiter moon Io 51 quartz tourmaline breccia 51 salt crystals 51 coquina rock 51 Leprechaun Pond 51 #,#-#,# ft. 51 volcaniclastic rocks 51 illite 51 volcanoclastic 51 siliceous breccia 51 mineralized dykes 51 frictional heating 51 drillhole intersected 51 basaltic 51 vertical diatreme breccia feeder 51 moulins 51 Nivloc Mine 51 Precambrian rocks 51 glacial outwash 51 talus slopes 51 ceramic jug 51 radioactive thorium 51 spodumene bearing 51 bearing sulphide mineralization 51 shale sedimentary 51 lakebed sediments 51 massive sulphide zones 51 polar craters 51 crestal 51 esker 51 granite outcroppings 51 glacial erratics 51 chlorite altered 51 sulphidized 51 Porcupine Destor fault 51 articular surfaces 51 pyroxene 51 leached capping 51 andesitic 51 blanket bog 51 feldspathic 51 naturally occurring mineral 51 sulphidic 51 felsic rocks 51 lavas 51 itabirite 51 gradational 51 layered mafic 51 subterranean caves 51 magma ocean 51 hydrate deposits 51 ultramafics 51 methane hydrate 51 Huge boulders 51 crustal plates 51 conical dome 51 mantle lithosphere 51 Messinian 51 sedimentary strata 51 molybdenite mineralization 51 oxidized mercury 51 sulfide ores 51 columnar basalt 51 silty mud 51 volcanic rock 51 corium 51 calcium fluoride 51 unmelted 51 copper sulphide mineralization 51 albitite 51 pier pilings 51 coral polyp 51 Ithaca Chasma 51 diorites 51 fumaroles 51 atomic lattice 51 micrometer scale 51 mud volcanoes 51 abyssal 51 abrasive particles 51 dacite 51 chromitite 51 craggy granite 51 barium sulfate 51 granitic gneiss 51 minable 51 hydrothermal activity 51 temperature gradient 51 fecal pellets 51 vein stockwork 51 silver arsenic antimony 51 Korkan target 51 Pollen grains 51 Quartz vein 51 calderas 51 undersea volcanoes 51 feldspar porphyry 51 sphalerite zinc sulphide 51 Sulphide mineralization 51 cumulus cloud 51 sylvinite 51 ferruginous 51 wallrock 51 #feet [001] 51 dust mote 51 filamentary 51 grout joints 51 saline aquifer 51 emergent vegetation 51 karst limestone 51 hydrologist Carolyn Driedger 51 Caloris Basin 51 aluminum silicate 51 Valles Marineris 51 shallowly plunging 51 pyrite mineralization 51 contaminant plume 51 diatreme breccias 51 lowermost 51 Nitrogen N2 51 oceanic trenches 51 diatreme breccia 51 chemically reactive 51 bearing hydrothermal 51 Cu porphyry 51 mineralized mafic 51 Cu PGE 51 Chalcopyrite 51 isotopic signature 51 pyrite altered 51 tephra 51 kimberlitic material 51 volcano sedimentary 51 underground geological formations 51 hydrocarbon saturation 51 rainwater seeping 51 hull plating 51 Villeta T 51 Kunlun Mountains 51 abundant quartz veining 51 Shallower 51 pillow lava 51 sublevels 51 corrodes metal 51 lensing galaxy 51 Maastrichtian 51 selvages 51 dam abutment 51 argentiferous galena 51 quartz muscovite 51 felsic dikes 51 ceiling joist 51 Alpine Fault 51 matrix porosity 51 hydrothermally altered 51 mineralized intrusive 51 Late Paleozoic 51 mineralized sandstone 51 Amundsen Sea 51 vuggy silica breccias 51 mineral olivine 51 g/m3 51 kimberlitic bodies 51 albedo reflectivity 51 gneissic rocks 51 Lake Vostok 51 limestone xenoliths 51 Seagull Intrusion 51 faceted crystals 51 structurally deformed 51 grabens 51 diabase 51 phlogopite 51 protoplanetary discs 51 desalinized 51 aluminosilicate 51 seismogenic zone 51 oxidized iron 51 radioactive nuclei 51 Fomalhaut b 51 delaminations 51 stalactites stalagmites 51 Paleozoic sedimentary 51 Peat bogs 51 Whillans Ice Stream 51 rhyolites 51 Banded Iron Formation 51 speleothems 51 large oceanic plateaus 51 palaeo channel 51 moonlet 51 tuffs 51 rocklike 51 lamproite 51 substrata 51 Permo Triassic 51 gossanous 51 gneissic 51 rills 51 fine grained sediment 51 trabeculae 51 zinc ions 51 mineralized outcrops 51 Mount Merapi spews 51 hole CJV 51 cobalt atoms 51 uraniferous 51 altered andesite 51 sandstone bluffs 51 goethite 51 Pivert Rose property 51 Eagle Nest deposit 51 pyroxenite 51 sulfide veins 51 Yaxtche zone 51 Saharan Desert 51 pyrite alteration 51 domed lid 51 quartz alunite alteration 51 strongly altered mafic 51 clastic 51 carbon cenospheres 51 sulphide breccia 51 microns millionths 51 brecciated limestone 51 graphitic sediments 51 sulfur atom 51 deep saline aquifer 51 sub glacial lakes 51 metasediment 51 chloritized 50 fine grained sedimentary rock 50 brecciated quartz veins 50 biotite schist 50 calc silicate 50 crunches underfoot 50 oceanic lithosphere 50 volcanic arcs 50 Elemental mercury 50 naturally occurring minerals 50 concretions 50 azurite 50 galactic disk 50 subducted 50 Pu ` 50 diabase dike 50 Titanic hull 50 banded quartz vein 50 Stora Sahavaara magnetite 50 Banerdt 50 smoky quartz 50 monazite 50 porosity permeability 50 mineralized quartz veins 50 planets asteroids 50 ultramafic mafic 50 peridotite 50 Petrified wood 50 limestone cavern 50 galaxy M# [002] 50 filamentary structures 50 quartz stockwork 50 interfacial tension 50 icesheet 50 hummock 50 comet nuclei 50 calcite 50 Gas hydrates 50 glacial meltwater 50 kyanite 50 unshelled peanut 50 unreacted 50 dinosaur skulls 50 Geologically speaking 50 crustal plate 50 permanently shadowed craters 50 siliceous 50 pillow basalts 50 Huge chunks 50 loess soil 50 antiform 50 perma frost 50 disseminated pyrite mineralization 50 pyritic quartz 50 Main Shear Zone