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(Click for frequent words.) 75 Arsia Mons 72 Syrtis Major 69 Olympus Mons 64 Jupiter moon Io 64 Candor Chasma 64 fissure eruption 64 stratovolcano 63 Arabia Terra 63 Nili Fossae 63 Tharsis Rise 63 Valles Marineris 62 Shiveluch 62 cinder cones 62 lava flowed 62 calderas 62 Palaeozoic sedimentary 62 Sarychev Peak 61 Orcus Patera 61 lava spewing 61 volcanic arcs 60 Pu ` 60 erosional 60 basaltic rocks 60 volcanic craters 60 Terra Sirenum 60 airglow 60 flood basalts 60 lapilli 60 tectonic faults 60 smoothest flattest 60 hydrothermal fluid 60 Elysium Planitia 59 lunar craters 59 Tharsis Montes 59 Mount Unzen 59 Fomalhaut b 59 volcanically active 59 Mariana Arc 59 Fossae 59 dacitic 59 Pu'u O'o 59 Hellas Basin 59 HiRISE image 59 ignimbrite 59 Aram Chaos 58 Ngauruhoe 58 Martian volcanoes 58 magma chambers 58 pyroclastics 58 Kilauea caldera 58 volcanic caldera 58 fumaroles 58 Siberian Traps 58 Kamoamoa eruption 58 moons Phobos 58 Tharsis 58 Sicily Mount Etna 58 Eyjafjallajökull glacier 58 phyllosilicate 58 lunar highlands 58 cryovolcanism 58 lava tubes 58 undersea volcanoes 58 pyroclastic 57 volcano Olympus Mons 57 spews ash 57 Veil Nebula 57 strongly altered mafic 57 basaltic lava 57 metallogenic belt 57 komatiitic 57 basaltic rock 57 Nyiragongo 57 volcanoclastic rocks 57 tectonically 57 extinct volcanoes 57 McMurdo Dry Valleys 57 silica breccia 57 Mount Bosavi 57 Saturnian moons 57 Reiner Gamma 57 lensing galaxy 57 Kirishima range 57 Vatnajökull 57 lowermost mantle 57 brittle deformation 57 ignimbrites 57 Chilean Atacama Desert 57 Grímsvötn 57 rhyodacite 57 binary quasar 57 silica carbonate 57 spews lava 57 active volcanism 57 andesitic rocks 57 Ius Chasma 57 Kermadec Arc 57 Explosive eruptions 57 Shackleton crater 57 Shiveluch volcano 57 oceanic trenches 57 moonquakes 57 massifs 57 moon Io 56 grabens 56 ejecta blanket 56 mud volcanoes 56 Halemaumau 56 Halemaumau crater 56 abyssal plain 56 SNR #-#.# 56 La Soufriere 56 Upsilon Andromedae b 56 Comet Halley 56 Dumbbell Nebula 56 Planitia 56 Puu Oo 56 hydrothermal brecciation 56 Shatsky Rise 56 felsic metavolcanic 56 Grimsvötn volcano 56 Yellowstone Caldera 56 magmatism 56 ESO Paranal Observatory 56 rhyolite domes 56 Ontario Lacus 56 hydrothermal activity 56 hydrosphere 56 Jovian moon 56 Tarantula nebula 56 mylonite 56 MGS Mars Orbiter Camera 56 moon Mimas 56 extrusive 56 HRTEM 56 Gamburtsev 56 Herschel Crater 56 quartz hematite 56 basaltic magma 56 BLG #Lb 56 gypsum crystals 56 quartz sericite alteration 56 dolomites 55 claystone 55 anastomosing 55 craggy granite 55 cratered highlands 55 Roque de los 55 subsurface ocean 55 Karangetang 55 Grímsvötn volcano 55 polar mesospheric clouds 55 Galilean satellites 55 large oceanic plateaus 55 Methone 55 Horsehead Nebula 55 lenticular clouds 55 amphibolites 55 layered ultramafic 55 Sakurajima 55 Ithaca Chasma 55 Cydonia region 55 Trifid Nebula 55 Saturn Enceladus 55 cosmic cannibal 55 rhyolitic 55 circumstellar 55 quartz feldspar porphyry intrusive 55 clastics 55 Geminga 55 Fimmvorduhals 55 Gakkel Ridge 55 Omega Nebula 55 Mount Karthala 55 volcanic 55 galaxy NGC 55 Corot 7b 55 silicic 55 Cerro Pachon 55 pyrite galena 55 El Teide 55 mineral olivine 55 Oceanus Procellarum 55 solar prominences 55 magmatic 55 Coma Berenices 55 hematite stained 55 Gusev crater 55 tuffaceous rocks 55 Muchachos Observatory 55 speleothems 55 cinder cone 55 meteoritic material 55 evaporite deposits 55 Lava flows 55 Krafla 55 circumstellar disks 55 intraplate 55 pyrophyllite 55 geothermal gradient 55 lava eruptions 55 EW trending 55 dolerite 55 calc silicate skarn 55 Lagoon Nebula 54 Socompa 54 Lake Vui 54 siliceous sediments 54 THEMIS Image 54 limestone karst 54 Felsic 54 olivine rich 54 basaltic 54 Rano Raraku 54 interstellar cloud 54 basalt volcanic 54 Birimian Greenstone Belt 54 porphyritic intrusive rocks 54 spiral nebulae 54 Llaima 54 biotite schist 54 gabbros 54 Mount Soputan 54 Butterfly Nebula 54 arcuate 54 Ring Nebula 54 emission nebula 54 Jurassic sandstone 54 Noctilucent clouds 54 Coma Cluster 54 retroreflector 54 stockwork breccia 54 yardangs 54 magma dome 54 thrust faulting 54 pillow lavas 54 undersea volcanos 54 tectonic activity 54 granodiorite porphyry 54 galactic mergers 54 peridotites 54 Valles Marineris canyon 54 volcaniclastics 54 felsic intrusions 54 altered andesitic 54 hematite mafic 54 syenite gneiss 54 cratons 54 Permo Triassic 54 constellation Eridanus 54 gravitational redshift 54 Upsilon Andromedae 54 circular depressions 54 Pleiades cluster 54 Martian craters 54 reflection nebula 54 RS Ophiuchi 54 Nyamulagira 54 Bug Nebula 54 smallest exoplanet 54 diffuse aurora 54 orpiment 54 outer corona 54 zodiac constellations 54 molten magma 54 Denisova cave 54 circumstellar disk 54 volcanoes 54 incandescent lava 54 jovian 54 Shackleton Crater 54 Cerro Paranal 54 supervolcanoes 54 lava flowing 54 lunar crust 54 recrystallized 54 metamorphic rock 54 circumstellar dust 54 mineralogical composition 54 hyperechoic 54 Eskay Creek Silbak Premier 54 lunar maria 54 olivine crystals 54 alkalic 54 prominences 54 strongly altered felsic 54 crustal thickness 54 mafic intrusion 54 petroliferous 54 Hellas Planitia 54 hydrated silica 54 Colima volcano 54 karst limestone 54 disseminated pyrite mineralization 54 advanced argillic 54 underwater volcanoes 54 undersea volcanic 54 crystalline silicates 54 altered mafic volcanics 54 lunar equator 54 phreatic 54 orogenic 54 hematite goethite 54 porphyritic intrusive 54 VY Canis Majoris 53 geodynamic 53 equatorial bulge 53 volcanic lava flows 53 Eyjafjallajoekull 53 exo planets 53 Hot Jupiters 53 Scanning electron microscope 53 galactic equator 53 altered felsic 53 diorites 53 structural stratigraphic 53 volcano Mount Vesuvius 53 Eruptive activity 53 stockwork vein 53 phyllosilicates 53 felsic intrusion 53 iron sulfide 53 photosphere 53 Halema'uma'u Crater 53 Napau Crater 53 andesite flows 53 nebular 53 Pink Terraces 53 tropopause 53 North Anatolian Fault 53 filamentary structures 53 constellation Andromeda 53 quartz feldspar 53 Sagittarius B2 53 thin crescent 53 starburst galaxy 53 layered mafic 53 Transantarctic Mountains 53 olivine mineral 53 anorthosite 53 wrinkle ridges 53 massif 53 Omega Centauri 53 volcanic ridges 53 crackle breccia 53 constellation Aquila 53 ancient petroglyphs 53 hydrated minerals 53 silicified rocks 53 oceanic trenches partly 53 Vatnajokull glacier 53 extrasolar 53 La Silla observatory 53 Hanny Voorwerp 53 ah dus 53 albitite 53 superposed 53 garnet biotite 53 magmas 53 Mount Karangetang 53 magnetite alteration 53 Hekla 53 stellar occultation 53 massive sulfide mineralization 53 planetary Transits 53 silicified limestone 53 Paranal 53 Lengai 53 Williamson Mwadui 53 volcanic breccias 53 bedrock outcropping 53 magma boiling 53 past boninite lavas 53 radial velocity technique 53 fairy chimneys 53 pyroxene 53 Orion nebula 53 Halema'uma'u 53 Trapezium 53 Eagle Nebula 53 Iceland Eyjafjallajoekull glacier 53 komatiites 53 chlorite altered 53 QQ# 53 Tony Bayaoa whose 53 detritus perched 53 metasediment 53 pegmatitic 53 Cat Paw Nebula 53 Paleogene 53 mantle plumes 53 quartz adularia 53 infrared spectral 53 brecciated silicified 53 mantle convection 53 inhabitable planets 53 Cenozoic Era 53 chalcedonic quartz 53 magma chamber 53 quartz carbonate vein 53 sulphide stringers 53 #,#-#,# ft. 53 Daisetta sits 53 molybdenite occurs 53 potassic altered 53 crustal deformation 53 Quaoar 53 heavily cratered 53 orbital eccentricity 53 mineralized gabbro 53 COROT 7b 53 extinct volcano 53 Okmok Caldera 53 constellation Scorpius 53 Caloris Basin 53 volcanic moon Io 52 volcanic peaks 52 coarser grained 52 coronal loops 52 vuggy silica 52 polar layered 52 Fermi telescope 52 constellation Taurus 52 felsic metavolcanics 52 barred spiral galaxy 52 permanently shadowed craters 52 subvolcanic 52 arsenopyrite pyrite 52 shadowed craters 52 Au Cu mineralization 52 seafloor methane 52 disseminated sulfide 52 felsic tuff 52 clasts 52 overhanging cliffs 52 Karthala 52 brecciated volcanic rocks 52 diatremes 52 ENE trending 52 Phoebe orbits 52 quartz monzonite 52 Bok globules 52 hydrothermally altered 52 alteration assemblages 52 gneissic rocks 52 constellation Ursa Major 52 muscovite 52 stony meteorites 52 ultramafic rock 52 steam eruptions 52 gravitational interaction 52 Piton de la 52 gray hematite 52 AB Aurigae 52 granitoids 52 Hunga Tonga 52 westerly dipping 52 icy moons 52 glacially carved 52 fault scarp 52 erupting lava 52 andesitic volcanic rocks 52 Martian crust 52 Archean aged 52 GJ#b 52 retrograde orbit 52 Cerro Tololo 52 geologist Magnus Tumi 52 Tarantula Nebula 52 moons orbiting 52 evaporite 52 Chajnantor 52 hydrothermal breccia 52 lapilli tuff 52 sulfate minerals 52 InSAR 52 sulphidic 52 gabbro intrusive 52 Galilean moons 52 supergiant star 52 luminous galaxies 52 spheroidal 52 moonlet 52 constellation Draco 52 Europa Ganymede 52 Nyiragongo volcano 52 karstic 52 Hawaii Mauna Kea 52 glacial outwash 52 magnetic geophysical anomaly 52 arcminutes 52 overlies 52 Alaskite 52 Geologically speaking 52 Mount Nyamulagira 52 lithological contacts 52 basalt flows 52 Perseus Cluster 52 Krakatoa volcano 52 icosahedral 52 protoplanetary 52 Chazy Reef 52 filamentary structure 52 martian meteorites 52 silicon monoxide 52 mineral hematite 52 temperamental Soufriere Hills 52 advanced argillic alteration 52 eruptive activity 52 geologist Jennifer Adleman 52 MG J# +# 52 Martian dunes 52 blackbody 52 turbidites 52 Ares Vallis 52 eclipsing binary 52 hornblende 52 synclinal 52 tectonically active 52 underwater volcanos 52 meta sedimentary rocks 52 Orion constellation 52 galena pyrite 52 galaxy M# [002] 52 constellation Aquarius 52 constellation Virgo 52 biomineralization 52 NGC #A 52 shear veins 52 protoplanet 52 Kasei Valles 52 planets Uranus 52 Lake Untersee 52 carbonatites 52 antiform 52 Neptune Uranus 52 paleomagnetic 52 chalcedonic 52 argillically altered 52 quartz veins containing 52 lava oozing 52 metasomatic 52 Tenabo 52 G#.# +#.# 52 erupt explosively 52 aeromagnetic anomaly 52 pillow lava 52 Sangihe island 52 solidified lava 52 kaolinite 52 basalt cliffs 52 quartz magnetite 52 Anomalous radioactivity 52 Saturnian moon Titan 52 quartz tourmaline breccia 52 calcareous sandstone 52 AU Mic 52 pyroclastic flow 52 sedimentary deposits 52 Samuel Oschin Telescope 52 Svalbard archipelago 52 supergiant stars 52 REE enriched 52 skarn rocks 52 El Chichon 52 Mud volcanoes 52 interferogram 52 subhorizontal 52 Outcrops 52 Saturn moon Enceladus 52 felsic tuffs 52 lava tube 52 Eyjafjallajokull Volcano 52 andesitic 52 earths crust 52 Grimsvötn 52 meteor craters 52 Kilauea summit 52 silicified zone 51 submillimetre wavelengths 51 Yellowstone supervolcano 51 Precambrian rocks 51 abyssal plains 51 structurally deformed 51 alteration halo 51 dravite 51 igneous rock 51 shallowly dipping 51 zodiacal light 51 mu Arae 51 silicic alteration 51 Shiranish formation 51 Mauna Loa volcano 51 pyrite marcasite 51 weakly interacting 51 CoRoT 9b 51 granitic rocks 51 Trifid 51 transiting planet 51 Antarctic Dry Valleys 51 Jurassic limestone 51 Philippines Mayon volcano 51 Dan Buhl Planetarium 51 noctilucent clouds 51 plutonic 51 Auger Observatory 51 thermally mature 51 Mount Semeru 51 shifting tectonic plates 51 explosive volcanism 51 layered sedimentary rock 51 Rosette Nebula 51 intense silica alteration 51 gneissic 51 active volcanoes 51 quartz biotite 51 spiral galaxy NGC 51 Helix Nebula 51 carbonaceous chondrite 51 Shinmoedake 51 P/# A2 51 Boar Tusk 51 Navajo Sandstone 51 malachite mineralization 51 quartz alunite alteration 51 quartz pyrite veins 51 carbonate veins 51 Raman spectra 51 geologically active 51 quartz sericite 51 hydrothermal vent 51 shadowy craters 51 fault scarps 51 permanently shadowed regions 51 chromosphere 51 basalt rocks 51 stockworked 51 colluvial 51 B Chromitite 51 Type Ic supernova 51 ancient lava flows 51 Comet Holmes 51 volcanic tuff 51 equatorial plains 51 stibnite 51 Crater Rim Drive 51 andesitic volcanic 51 auroral displays 51 mineralized mafic 51 siliciclastic 51 ionized hydrogen 51 torus 51 volcanic cone 51 Quadrantids 51 lava fountains 51 nebulosity 51 Kuiper Belt object 51 Ursa Minor 51 volcanogenic 51 brittle ductile 51 gravity anomalies 51 Pu'u O'o vent 51 specularite 51 igneous 51 Mount Nyiragongo 51 Chaitén volcano 51 eolian 51 alluvial workings 51 stockwork veins 51 glaciated 51 Adumbi prospect 51 biotite magnetite 51 Terra Meridiani 51 quartz vein stockwork 51 igneous intrusive 51 steam vents 51 Porcupine Destor fault 51 Vatnajökull glacier 51 Solar TErrestrial RElations Observatory 51 lateritic 51 Spiral galaxies 51 constellation Pisces 51 volcanic basalt 51 schists 51 aeolian 51 mantle lithosphere 51 cirrus cloud 51 volcano sedimentary 51 azurite 51 Chasma Boreale 51 Kuiper belt objects 51 equatorial latitudes 51 telescopic observations 51 Kuiper Belt Objects 51 quartz pyrite 51 ultramafic intrusive 51 altered mafic 51 quartz calcite 51 oozes lava 51 atop Mauna Kea 51 Magnetars 51 caldera 51 layered bedrock 51 conodonts 51 collinear 51 morphological similarities 51 deeply incised 51 rubbly 51 millimeter wavelengths 51 paleo placer 51 silicate rocks 51 Magembe property 51 Jurassic Cretaceous 51 pediment gravels 51 amphibolite 51 Carina Nebula 51 pyrite altered 51 mineralized breccias 51 Veniaminof 51 Scientists Iceland Grimsvotn 51 Overlying 51 intermediate metavolcanic rocks 51 volcano lava dome 51 mineralising 51 basalt 51 Orientale Basin 51 hole CJV 51 interferograms 51 volcanic crater 51 tectonic belts 51 coronal holes 51 cataclysmic eruption 51 ash billowing 51 hematite altered 51 planet Gliese #g 51 dioritic intrusive 51 lava domes 51 Mount Tambora 51 depositional 51 thermal vents 51 thermal gradients 51 silicate minerals 51 ultramafic volcanic 51 Salta Province Argentina 51 uppermost layer 51 KT boundary 51 unpolarized 51 Caloris 51 magnetopause 51 variably altered 51 supervolcano 51 clastic sediments 51 Saturn moon Mimas 51 planets comets 51 exhalative 51 fragmental 51 Mars Squyres 51 tectonic movements 51 inhomogeneities 51 southern supercontinent 51 meta sedimentary 51 polar latitudes 51 Mount Erebus 51 tonalite 51 mesosphere 51 Vastitas Borealis 51 microscopic crystals 51 landform 51 lavas 51 stockwork veining 51 Comet Hale Bopp 51 Jupiter Ganymede 51 ooze naturally 51 Mount Katla 51 alaskite 51 polar vortex 51 Io Europa 51 Kilauea Iki 51 lava fragments 51 spinels 51 uraniferous 51 radiometric measurements 51 latite 51 volcano 50 lacustrine 50 constellation Centaurus 50 Miocene aged 50 constellation Fornax 50 gaseous planets 50 refrozen ice 50 finely disseminated 50 tectonic fault 50 sulfide deposits 50 calcic 50 Saturn outermost 50 submarine volcanoes 50 crestal 50 Paleozoic carbonate 50 Stromboli volcano 50 mesospheric 50 Michael Studinger 50 nebula NGC 50 Serpens Cauda 50 elastic deformation 50 deformational 50 outwash 50 dipolar 50 Fornax cluster 50 Infrared Thermal Imaging Spectrometer 50 dynamical processes 50 Cambrian Ordovician 50 Earths crust 50 Mineralization occurs 50 Schellart 50 basalt columns 50 paleochannel 50 Gullfoss 50 ultraviolet radiation emitted 50 Iceland Eyjafjallajökull 50 pyrite veins 50 diffraction patterns 50 volcanic vents 50 Late Paleozoic 50 cosmological distances 50 galactic disk 50 X ray telescopes 50 Cretaceous sandstones 50 sulphidation gold 50 Planetary Transits 50 locally graphitic 50 neutrino telescope 50 Mesoproterozoic 50 spectral fingerprint 50 sub Athabasca unconformity 50 Oort cloud 50 ostracods 50 Giza plateau 50 IRC +# 50 exoplanets planets 50 planet Gliese #c 50 Ratdomopurbo 50 quartz stringers 50 Ecuador Tungurahua 50 coronal mass ejections CMEs 50 Widely spaced 50 interferometric synthetic aperture radar 50 pyrite alteration 50 Mauna Kea Hawaii 50 AGNs 50 foreground galaxy 50 sulphide veins 50 leucogranite 50 icy crust 50 alteration halos 50 sunspot cluster 50 seismically active zones 50 geomorphological 50 coronal loop 50 post perovskite 50 brecciated quartz 50 north easterly trending 50 volcanic plume 50 seafloor sediments 50 volcanic activity 50 potassically altered 50 cherts 50 hazardous eruption 50 Carina constellation 50 volcanoclastic 50 CMB radiation 50 Katla volcano 50 Figure 1A 50 pegmatite hosted 50 pentacene molecule 50 coronagraph 50 periodic dimming 50 silicified outcrops 50 TrES 4 50 xenoliths 50 pyritized 50 craton 50 moon Enceladus 50 unmelted glacial ice 50 mafic intrusive rocks 50 Strathcona Fiord 50 Halemaumau Crater 50 Sarychev 50 SN #A 50 magnetite skarn 50 argillaceous 50 HARPS instrument 50 hydrologist Carolyn Driedger 50 propylitic 50 QUITO Ecuador Ecuador Tungurahua 50 biogeographical 50 harmonic tremors 50 galaxy M# [001] 50 megathrust 50 Cloud Aerosol Lidar 50 Submillimeter Array 50 altered diorite 50 lithospheric 50 hydrothermal springs 50 V# Mon 50 Klaza Zone 50 Krakatau volcano 50 permanently shadowed lunar 50 Pavlof 50 exoplanetary 50 Ultramafic rocks 50 anticlines 50 rocky extrasolar planet 50 Moderate Resolution Imaging 50 Lower Jurassic 50 Norris Geyser Basin 50 ankerite 50 geochronology 50 variably silicified 50 Pyroclastic flows 50 Gravitational waves 50 northeast trending shear 50 Russia Kamchatka volcanoes 50 hydrothermal magnetite 50 ovoid shaped 50 dolostone 50 hydrothermal venting 50 shaded craters 50 Epsilon Aurigae 50 granodiorites 50 Red Rectangle 50 Messinian 50 Suzaku X ray 50 gradational 50 Nevado del Huila volcano 50 Klyuchevskaya Sopka 50 Troodos Ophiolite Complex 50 Cassini flybys 50 tectonic plate dives 50 dacite 50 stratigraphic sequence 50 circum Pacific 50 felsic intrusive rocks 50 Envisat ASAR 50 basalts 50 microbialites 50 spectrometric 50 anomalies coincident 50 IP chargeability 50 Athabasca Valles 50 constellation Coma Berenices 50 aluminum silicate 50 albite alteration 50 emit X rays 50 spectroscopically 50 hematite magnetite 50 interstellar dust clouds 50 smallest exoplanets 50 autunite 50 receding glacier 50 Cagsawa 50 Nevado del Huila 50 Chajnantor plateau 50 Makemake 50 elongated orbits 50 iron carbonate 50 Oort Cloud 50 Upper Bracemac 50 backscattered 50 felsic dikes 50 carbonatized 50 secondary chalcocite 50 HiRISE camera aboard 50 secondary biotite 50 silicate mineral 50 compressional 50 hydrothermally 50 porphyritic 50 Rwenzori Mountains 50 infrared spectra 50 isostatic rebound 50 whiz harmlessly 50 silicified breccia 50 Comet 9P/Tempel 1 50 long dormant Chaiten 50 Soputan 50 gamma ray emitting 50 paragneisses 50 aurorae 50 turbidite 50 ESO La Silla 50 gold arsenic antimony 50 graphitic sediments 50 silicified meta 50 Kilauea Volcano 50 Balmer Assemblage 50 LASCO imagery 50 ancient supercontinent 50 tectonic plate slides 50 azimuthal