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(Click for frequent words.) 76 magmas 72 basalts 70 volcanism 69 metamorphic rocks 69 igneous rocks 69 basaltic rocks 68 Neoproterozoic 68 basaltic 67 lithosphere 67 sedimentary rocks 67 olivine 67 volcanic rocks 66 continental crust 66 oceanic crust 66 silicates 66 igneous rock 66 sediments 66 ejecta 66 sediments deposited 65 chondrules 65 phyllosilicates 65 sedimentary deposits 65 anorthosite 65 silicate rocks 65 peridotites 65 magma ocean 65 magmatism 65 zircons 65 solar nebula 65 marine sediments 65 sedimentary layers 65 isotopic compositions 64 silicate minerals 64 basalt 64 cratons 64 hydrated minerals 64 magma 64 magmatic 64 plagioclase 64 olivine rich 64 molten magma 64 carbonate minerals 64 chondrites 64 flood basalts 64 jarosite 64 crustal 64 sedimentary rock 64 basaltic magma 64 igneous 63 magma chamber 63 tectonically 63 lunar crust 63 granitoids 63 calcite 63 lava flows 63 basaltic lava 63 crustal rocks 63 volcanic magma 63 halite 63 volcanic 63 pyroxene 62 hydrothermal 62 metamorphism 62 hydrothermal activity 62 silicate 62 iron oxides 62 silicic 62 isotopic composition 62 stony meteorites 62 glaciation 62 clastic sediments 62 phyllosilicate 62 pillow lavas 62 mineralized mafic 62 mudstones 62 primitive meteorites 61 claystone 61 concretions 61 intrusive rocks 61 hematite mineral 61 mudstone 61 carbonatites 61 komatiites 61 tuffaceous rocks 61 dolomites 61 seafloor sediments 61 planetesimals 61 hornblende 61 peridotite 61 pyroclastics 61 loess 61 amphibolites 61 sulphidic 61 gabbroic rocks 61 magma chambers 61 mantle plumes 61 turbidites 61 terrane 61 molten rock 61 volcanic gases 61 glaciations 61 clasts 60 dacite 60 carbonate sediments 60 ignimbrites 60 isotopic ratios 60 volcanic basalt 60 interglacial periods 60 melt inclusions 60 spherules 60 sedimentary 60 CAIs 60 asthenosphere 60 felsic rocks 60 carbonaceous 60 oxygen isotope 60 silicate mantle 60 olivines 60 calderas 60 volcanoclastic rocks 60 volcanic tuff 60 hydrated silica 60 tuffs 60 goethite 60 facies 60 metamorphic rock 60 volcanics 60 chondritic 60 limestones 60 carbon isotopes 60 hydrothermally 60 Precambrian 60 plate tectonics 60 olivine crystals 60 ferric oxides 60 siliciclastic 60 clastic 60 meteorite impacts 59 sulphide minerals 59 mineral olivine 59 rifting 59 tectonic activity 59 volcaniclastics 59 nebular 59 ALH# 59 lake sediments 59 Fe Mn 59 komatiitic 59 pyritized 59 stromatolite 59 sulfate salts 59 calcic 59 isotope ratios 59 osmium 59 kaolinite 59 volcaniclastic rocks 59 terranes 59 granitic rocks 59 gneisses 59 xenoliths 59 diabase 59 carbonaceous chondrites 59 icy moons 59 hydrothermal fluids 59 sulfur isotope 59 siliceous 59 martian meteorites 59 Archaean 59 komatiite 59 heavily cratered 59 calcareous 59 protoplanetary disk 58 X ray emission 58 carbonate 58 extrusive 58 isotope fractionation 58 volcanic rock 58 basalt volcanic 58 overlying sediments 58 Ordovician 58 gabbros 58 hornfels 58 isotopic 58 Mg Ca 58 dunite 58 meteoroids 58 apatite 58 subduction 58 meteorite fragments 58 volcanic sediments 58 volcanic lava 58 ignimbrite 58 Permo Triassic 58 presolar grains 58 andesitic volcanic rocks 58 carbonaceous material 58 microfossils 58 lunar magma 58 lateritic 58 aragonite 58 mineral hematite 58 sedimentary sequences 58 basaltic rock 58 rhyolites 58 cryovolcanism 58 forams 58 undersea volcanoes 58 felsic tuff 58 limonitic 58 copper sulphides 58 andesitic 58 geologically 58 tonalite 58 carbonate globules 58 Neogene 58 Palaeozoic sedimentary 58 spherically symmetric 57 ocean ridges 57 sulfide minerals 57 lunar highlands 57 acid leached 57 ilmenites 57 pyrites 57 chondritic meteorites 57 peridotitic 57 sulfur isotopes 57 silicon monoxide 57 schists 57 siderite 57 mud volcanoes 57 pyroxenites 57 isotope composition 57 argillites 57 depositional environment 57 potassium feldspar 57 pyroclastic 57 magnetite crystals 57 oxygen isotopes 57 limestone xenoliths 57 stratovolcano 57 oceanic lithosphere 57 sedimentary sequence 57 Martian meteorites 57 earth crust 57 volcano sedimentary sequence 57 hydrothermally altered 57 recrystallized 57 diorites 57 craton 57 coarser grained 57 Eocene 57 noble gases 57 ophiolite 57 post perovskite 57 silicified limestone 57 anhydrite 57 carbonates 57 silicate dust 57 sulphides 57 granodiorites 57 deglaciation 57 palaeo 57 uraninite 57 collisional 57 amphibolite facies 57 stromatolites 57 lava fountains 57 lunar magmas 57 lava tubes 57 sericitization 57 caldera 57 muscovite 57 mafic flows 57 chrysocolla 57 volcanic activity 57 quartz feldspar 57 arsenopyrite pyrite 57 carbonaceous chondrite 56 evaporite 56 crystallites 56 Tertiary volcanic 56 speleothems 56 Tertiary volcanic rocks 56 molten rocks 56 photosphere 56 lapilli tuff 56 cinder cones 56 Upper Triassic 56 exosphere 56 gabbro 56 dacitic 56 silica 56 propylitic alteration 56 landforms 56 Athabasca sandstone 56 olivine mineral 56 altered andesitic 56 chlorite altered 56 serpentinized 56 Syrtis Major 56 Chicxulub impact 56 volcanoes 56 rhyodacite 56 chromosphere 56 pyroxenite 56 andesite 56 clathrates 56 depositional 56 geochronology 56 quartz adularia 56 hydrothermal fluid 56 gabbroic 56 explosive volcanism 56 andesitic rocks 56 Cryogenian 56 graphitic 56 Proterozoic 56 variably silicified 56 bastnasite 56 layered ultramafic 56 pillow lava 56 icy comets 56 Palaeozoic 56 carbonate veins 56 abundances 56 magmatic rocks 56 overlying layers 56 Valles Marineris 56 gaseous planets 56 sulfides 56 sulfidic 56 felsic intrusions 56 alkalic 56 subglacial 56 Tharsis Rise 56 specular hematite 56 Sr Ca 56 sulphide deposits 56 spinels 56 orogenic 56 REE enriched 56 porphyritic 56 gneiss 56 rhyolite tuff 56 Noachian 56 fine grained sediments 56 hematite 56 Geologically 56 Paleocene 56 hydrothermal breccia 56 manganese oxides 56 biotite 56 Earth crust 56 quartzites 56 sandstones 56 haematite 56 Jupiter moon Io 56 fluorapatite 56 granites 56 conodonts 56 Sedimentary rocks 56 Precambrian rocks 56 copper oxides 56 mafic rocks 56 disseminated chalcopyrite 56 stratigraphic sequence 56 brachiopods 56 glacial till 56 faunas 56 planetesimal 56 geothermal gradient 56 saprolitic 56 carbonatized 56 basalt flows 56 sericitic 56 wallrock 56 hornfelsed 55 mantle convection 55 specularite 55 sulphates 55 galactic disk 55 supervolcanoes 55 felsic 55 Carboniferous 55 exhalite 55 lacustrine 55 porphyritic intrusions 55 rhyolitic 55 meta sedimentary 55 pyrrhotite mineralization 55 eudialyte 55 kimberlite breccia 55 carbonate rocks 55 felsic volcanics 55 benthic foraminifera 55 Outcrops 55 advanced argillic alteration 55 coccolithophores 55 Lengai 55 metasediment 55 vuggy silica 55 volcanic tuffs 55 magma molten rock 55 Paleozoic 55 organic molecules 55 blue supergiant 55 graben 55 aerosol particles 55 biotite alteration 55 sandstone intervals 55 meteoritic material 55 grabens 55 eclogite 55 chalcopyrite sphalerite 55 Dry Valleys 55 chlorine monoxide 55 merging galaxies 55 stockwork veining 55 pegmatitic 55 sulfide deposits 55 asteroidal 55 KBOs 55 cherts 55 volcanoclastic 55 paleomagnetic 55 Cretaceous sandstones 55 metavolcanics 55 pyrrhotite pyrite 55 geologic 55 granitic basement 55 dirty snowballs 55 locally graphitic 55 gneissic rocks 55 KT boundary 55 interglacial period 55 Sulphide mineralization 55 ankerite 55 brittle deformation 55 supervolcano 55 Early Cretaceous 55 propylitic 55 zircon grains 55 quartz crystals 55 Proterozoic aged 55 potassic altered 55 pillow basalts 55 greywackes 55 biogenic 55 epidote 55 supergene enrichment 55 greywacke 55 Paleoproterozoic 55 Toba eruption 55 protoplanets 55 anomalous concentrations 55 carbonatite dykes 55 paleochannel 55 regolith 55 circumstellar 55 Paleozoic sediments 55 chromitite layers 55 subhorizontal 55 diatoms 55 protoplanet 55 phlogopite 55 Gneiss 55 mafic metavolcanics 55 greenschist 55 iron carbonate 55 pyrite marcasite 55 quartz alunite alteration 55 molten droplets 55 andesites 55 colluvial 55 azurite 55 supercontinent 55 tectonics 55 biotite rich 55 polar vortex 55 hydrosphere 55 silicate mineral 55 bornite 55 mineralized intrusive 55 Deccan Traps 55 supernova explosions 55 sulfate aerosols 55 ultramafic intrusives 55 metasomatic 54 calc alkaline 54 enargite 54 iron sulphides 54 lava 54 Paleocene Eocene Thermal Maximum 54 chalcopyrite mineralization 54 chloritic 54 hematite goethite 54 protostars 54 metavolcanic rocks 54 BIFs 54 copper sulfide 54 altered porphyry 54 intrusives 54 Mesoproterozoic 54 magmatic hydrothermal 54 granitoid 54 mafic 54 Last Glacial Maximum 54 potassically altered 54 carbonatite 54 diorite intrusive 54 tropopause 54 massive sulphide deposit 54 anomalously 54 IR spectra 54 illite 54 lava flowed 54 Tharsis 54 silica carbonate 54 quartz calcite 54 chalcedonic 54 ejecta blanket 54 quartz sulphide veins 54 sulphide mineral 54 Meridiani 54 elemental abundances 54 protoplanetary disks 54 rocky planets 54 overlying sandstone 54 Siberian Traps 54 explosive eruptions 54 Pliocene 54 comets 54 hydroxyl molecules 54 Paleozoic sedimentary 54 Doushantuo Formation 54 Lower Jurassic 54 Transantarctic Mountains 54 ferruginous 54 volcanic vents 54 outwash 54 metasedimentary rocks 54 tephra 54 Laurentide ice sheet 54 KIMs 54 sericite 54 subduction zones 54 plutons 54 chert 54 advanced argillic 54 geochemical signature 54 polar caps 54 andesite flows 54 submarine volcanoes 54 leached capping 54 ionized gas 54 pyrope garnet 54 volcaniclastic 54 siltstone 54 quartz veinlets 54 hydrothermal vents 54 phreatic 54 granitic 54 deformational 54 mafic intrusive rocks 54 atmospheric methane 54 strontium isotope 54 comet nuclei 54 Amundsen Sea 54 altered felsic 54 carbonate altered 54 Kuiper Belt Objects 54 quartz grains 54 phyllite 54 sulfate minerals 54 pyrite alteration 54 altered ultramafic rocks 54 Cenozoic 54 pyrope 54 quartz sericite alteration 54 Mount Tambora 54 meteor impacts 54 Alaskite 54 fluid inclusions 54 feldspar 54 schistose 54 oceanic plates 54 moraines 54 Myr 54 lithospheric 54 zinc sulphides 54 amphibolite 54 volcanogenic 54 adularia 54 meltwater 54 weakly interacting 54 Snowball Earth 54 alteration assemblages 54 Proterozoic basement 54 decalcified 54 deuterium 54 paragneiss 54 disseminated arsenopyrite 54 quartz carbonate veining 54 elliptical galaxies 54 mineral assemblages 54 glacial meltwater 54 felsic volcanic rocks 54 monazite 54 Middle Eocene 54 fragmental 54 mineral apatite 54 neutron star 54 MgO 54 zircon crystals 54 epithermal mineralization 54 lava domes 54 hematite magnetite 54 ancient supercontinent 54 mantle lithosphere 54 biotitic 54 eclogitic 54 tuffaceous sediments 54 subsurface ocean 54 perovskite 54 interglacial 54 Felsic 54 Kermadec Arc 54 upwellings 54 pelitic gneiss 54 pyrrhotite chalcopyrite 54 subglacial lakes 54 mid latitudes 54 porphyry mineralization 54 hydrocarbon reservoirs 54 Cretaceous 54 Upper Cretaceous 54 diatreme breccia 54 mafic volcanics 54 unmineralized 54 metasediments 54 methane seeps 54 water vapor 54 lapilli 54 Younger Dryas 53 Moho 53 meteorites 53 finely disseminated 53 volcanic stratigraphy 53 methane hydrates 53 volcanic breccias 53 sericite chlorite 53 pyrite mineralization 53 Phanerozoic 53 ultramafic rocks 53 globulars 53 disseminated sulfide 53 carbon spherules 53 anisotropy 53 volcanic caldera 53 quartz pyrite 53 latite 53 skarn alteration 53 lithologies 53 fossils 53 siltstones 53 meta sedimentary rocks 53 downwelling 53 quartz alunite 53 outcrops 53 dolerite 53 tholins 53 volcanic crater 53 malachite mineralization 53 AGNs 53 ultramafics 53 carnotite 53 sandstone formations 53 granite gneiss 53 potassic alteration 53 hematitic 53 Cambrian Ordovician 53 stratigraphy 53 polar latitudes 53 silica alteration 53 sedimentary basin 53 magnetite skarn 53 carboniferous 53 bornite chalcopyrite 53 glacial outwash 53 subducted 53 fumaroles 53 subvolcanic 53 radiocarbon 53 methane hydrate 53 molybdenite MoS2 53 Late Ordovician 53 pluton 53 evaporites 53 ancient lava flows 53 interstellar clouds 53 Mount Mazama 53 crystalline silicates 53 radioactive decay 53 mineralogy 53 feldspathic 53 porphyry intrusions 53 rhyolite domes 53 basalt lava 53 Arabia Terra 53 epithermal deposit 53 pervasive silicification 53 mylonite 53 eruptive activity 53 Tertiary Period 53 massifs 53 interstellar grains 53 felsic volcanic 53 accretionary 53 erosional 53 quartz feldspar porphyry intrusive 53 realgar 53 Late Cretaceous 53 REE bearing 53 volcanic eruptions 53 fine grained sandstone 53 carnallite 53 pyrope garnets 53 altered mafic 53 volcanic ashes 53 volcanic plumes 53 quartz carbonate veins 53 detrital 53 seabed sediments 53 porphyry dykes 53 Iapetus 53 chalcocite 53 volcanic ridges 53 crackle breccia 53 amorphous silica 53 Elysium Planitia 53 andesitic tuffs 53 argillization 53 interstellar dust grains 53 Late Jurassic 53 supernova remnant 53 quartz stringers 53 medium grained 53 silicate grains 53 oxygen isotope ratios 53 chlorite sericite 53 Allende meteorite 53 quartz magnetite 53 Sturtian 53 Ohmoto 53 lunar meteorites 53 Mesozoic 53 zinc sulfide 53 accretion disk 53 chemically reactive 53 noctilucent clouds 53 variably altered 53 surficial 53 Granodiorite 53 colluvium 53 deep convective clouds 53 intermediate volcanic rocks 53 active volcanism 53 planktonic foraminifera 53 Oort Cloud 53 K feldspar 53 amphibole 53 planetary nebula 53 sulfide bearing 53 spinel 53 vein quartz 53 martian atmosphere 53 proplyds 53 nuclei 53 intrusive granitic 53 phytoplankton blooms 53 sedimentary formations 53 felsic dykes 53 carbonyl sulfide 53 magnesium silicate 53 dacites 53 vugs 53 breccia pipes 53 greenstones 53 pyrite galena 53 foreland 53 alunite 53 anticlines 53 Hot Jupiters 53 Gas hydrates 53 chemosynthetic 53 silica sericite 53 Cretaceous sediments 53 electron density 53 degassed 52 smectite 52 mafic intrusive 52 morphologies 52 landmasses 52 LREE 52 Eemian 52 unoxidized 52 supergene 52 RS Ophiuchi 52 calc silicate 52 granodiorite porphyry 52 brecciated limestone 52 disseminated sulfides 52 hydrothermal venting 52 greisen 52 bedrock outcrops 52 granitic rock 52 magnetotail 52 Murchison meteorite 52 quartz monzonite 52 meta sediments 52 mineralized boulders 52 finely disseminated pyrite 52 Methane hydrate 52 granitic pegmatite 52 silicified zones 52 mafic volcanic rocks 52 hydrate deposits 52 yardangs 52 Fram Strait 52 Mariana Arc 52 Archean aged 52 calcareous sandstone 52 microfossil 52 magnetospheric 52 Cretaceous Paleogene boundary 52 albite 52 clay alteration 52 eluvial 52 spheroidal 52 foraminifera 52 silicified meta 52 spicule 52 metasedimentary 52 Jurassic sandstones 52 ostracods 52 quartz biotite 52 Reiner Gamma 52 manganese oxide 52 intensely silicified 52 Noachian era 52 Peridotite 52 calcite veining 52 presolar 52 argillic 52 massive sulphide deposits 52 silica particles 52 felsic intrusion 52 weakly mineralized 52 icy crust 52 ultramafic rock 52 silicified zone 52 luminous galaxies 52 volcaniclastic kimberlite 52 iron oxide 52 sedimentary strata 52 argillically altered 52 metavolcanic 52 thermally mature 52 rhyolite tuffs 52 clastics 52 quark gluon plasma 52 strongly altered felsic 52 impactors 52 martensite 52 rhyolite 52 isotopic signatures 52 paleo placer 52 microcrystals 52 ultramafic 52 seafloor sediment 52 zeolites 52 Cambrian Period 52 massive sulfide mineralization 52 eruptive phase 52 ultramafic hosted 52 Plio Pleistocene 52 superfluid 52 starburst galaxies 52 albitite 52 argillic altered 52 banded iron 52 basalt rocks 52 altered andesite 52 sunlike stars 52 silty limestone 52 Explosive eruptions 52 quasars 52 supercontinents 52 subglacial lake 52 chalcopyrite pyrite 52 oxidized 52 V# Mon 52 Martian crust 52 magnetite BIF 52 phyllic alteration 52 disseminated sulphide mineralization 52 cometary material 52 geochemically 52 planetary nebulae 52 Tertiary volcanics 52 mafic intrusion 52 altered granodiorite 52 sedex 52 glacial sediments 52 kerogen 52 feldspars 52 U Th 52 terrestrial planets 52 electron pairs 52 pelitic gneisses 52 Ontario Lacus 52 alaskite 52 Quaternary 52 tectonic 52 quartz sericite pyrite 52 lunar craters 52 mineralizing 52 argillic alteration 52 pumice 52 secondary chalcocite 52 felsic intrusive 52 Hydrothermal vents 52 photochemical reactions 52 pyrite chalcopyrite sphalerite 52 sediment cores 52 Aptian 52 interbedded 52 ionized hydrogen 52 atmospheric circulation 52 gossans 52 hydrological cycle 52 Cretaceous sedimentary rocks 52 granitic gneiss 52 hydrogen isotopes 52 corundum 52 sulfosalts 52 Upper Jurassic 52 pyrite pyrrhotite 52 stalagmite 52 batholith 52 accretion disks 52 galena mineralization 52 Cretaceous Paleogene 52 lowermost mantle 52 tholeiitic 52 pyrophyllite 52 Chalcopyrite 52 quartz feldspar porphyries 52 Jurassic Cretaceous 52 tectonic stresses 52 felsic intrusives 52 chlorite epidote 52 chrome diopsides 52 sericitized 52 magmatic sulphide 52 sulphide veins 52 shales 52 quartz veins containing 52 altered basalt 52 Enceladus 52 element osmium 52 iridium layer 52 jasperoid 52 crust 52 chlorite alteration 52 surface geochemical anomalies 52 mesothermal 52 sodium atoms 52 Methane hydrates 52 actinolite 52 Alfven waves 52 Chlamydomonas reinhardtii 52 brecciated 52 carbides 52 carbonate formations 52 olivine macrocrysts 52 element iridium 52 stratigraphically 52 Ediacaran 52 skarn mineralization 52 alteration halos 52 volcanic cone 52 underwater volcanoes 52 subducting 52 ankerite alteration 52 Raman spectra 52 pyroclastic flow 52 Lower Proterozoic 52 Saturn rings