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(Click for frequent words.) 68 magmas 64 overlying sediments 64 silicate rocks 64 metamorphic rocks 64 lavas 63 peridotites 63 anorthosite 63 basaltic rocks 63 olivine rich 63 basaltic 63 komatiitic 62 silicate minerals 62 Tharsis Rise 62 lithosphere 62 Palaeozoic sedimentary 62 extrusive 61 subvolcanic 61 granodiorite porphyry 61 hydrothermal fluid 61 lowermost mantle 61 alkalic 61 recrystallized 61 pillow lavas 61 magmatic 61 pyroclastics 61 geothermal gradient 60 basaltic lava 60 dacitic 60 quartz monzonite 60 silica carbonate 60 oceanic lithosphere 60 pyroclastic 60 layered ultramafic 60 metavolcanic 60 phyllosilicate 60 volcanic sediments 60 gneissic rocks 60 magmatism 60 meta sedimentary 59 amphibolite 59 orpiment 59 andesitic rocks 59 intrusive granitic 59 ignimbrite 59 carbonaceous 59 hydrosphere 59 clasts 59 rhyodacite 59 gabbros 59 sulphidic 59 molten rocks 59 altered mafic 59 gneissic 59 granitoids 59 lapilli 59 andesitic 59 volcanic 59 hydrated silica 59 lithospheric 59 phreatic 59 igneous rocks 59 mineralized felsic 59 tuffs 59 tuffaceous rocks 59 metasedimentary 59 circumstellar 59 tonalite 59 ignimbrites 58 metamorphic rock 58 felsic metavolcanic 58 volcaniclastics 58 volcanoclastic rocks 58 pegmatitic 58 explosive volcanism 58 lateritic 58 silicic 58 pyrophyllite 58 claystone 58 altered andesitic 58 komatiites 58 biotitic 58 olivine crystals 58 peridotitic 58 peridotite 58 mineralized diorite 58 hornblende 58 arsenopyrite pyrite 58 calcic 58 lapilli tuff 58 halite 58 sulfidic 58 greenschist facies 58 mantle lithosphere 58 asthenosphere 58 pyrite galena 58 granite gneiss 58 norite 58 granitic rocks 58 Neoproterozoic 58 coarser grained 58 basalts 58 magmatic hydrothermal 58 quartz feldspar porphyry intrusive 58 Mesoproterozoic 58 peralkaline 58 metavolcanics 57 pyroxene 57 felsic tuff 57 quartz adularia 57 altered diorite 57 lava flowed 57 silicate mantle 57 Alaskite 57 paragneiss 57 flood basalts 57 cratons 57 andesite 57 ductile deformation 57 Fe Mn 57 Precambrian rocks 57 dunite 57 Syrtis Major 57 Puu Oo 57 isotopic compositions 57 Geochemical analysis 57 turbidites 57 variably altered 57 siliceous sediments 57 alteration assemblages 57 hydrothermal magnetite 57 propylitic 57 micro meteorites 57 altered granodiorite 57 anhydrite 57 mantle convection 57 amphibolites 57 monzonitic 57 malachite mineralization 57 lunar crust 57 felsic 57 andesitic volcanics 57 Lengai 57 ultramafic mafic 57 Sedimentary rocks 57 greywackes 57 ankerite 57 metavolcanic rocks 57 olivines 57 coeval 57 brecciated silicified 57 ultrabasic 57 dacite porphyry 57 orogenic 57 pyrite marcasite 57 pyroxenites 57 colluvial 57 allanite 57 iron sulphides 57 cherts 57 granitic rock 57 dacite 57 strongly altered felsic 57 mineralized mafic 57 volcaniclastic rocks 57 hydrothermally altered 57 erosional 57 crustal 57 andesitic volcanic 56 meta sediments 56 sericitized 56 volcanic arcs 56 subhorizontal 56 biotite schist 56 mafic 56 eclogite 56 granodiorites 56 molten magma 56 albitite 56 gabbroic 56 magma molten rock 56 schists 56 mafic intrusive 56 manganese oxides 56 ultramafic intrusive 56 potassic altered 56 pediment gravels 56 olivine 56 rhyolitic 56 specularite 56 gold arsenic antimony 56 igneous 56 quartz calcite 56 albite 56 mudstones 56 Neogene 56 gabbro 56 disseminated sulfide 56 volcanoclastic 56 thrust faulting 56 calcareous sediments 56 volcanic vents 56 mantle plumes 56 jovian 56 diorite porphyry 56 Lower Proterozoic 56 supergene copper 56 hornfels 56 ultramafic rock 56 altered porphyritic 56 chrysocolla 56 pyritized 56 hydroxides 56 Shiveluch 56 continental crust 56 locally graphitic 56 sheared mafic 56 silicate mineral 56 Chalcopyrite 56 gabbroic rocks 56 post perovskite 56 siliciclastic 56 carbonate minerals 56 epidote 56 dolerite 56 volcanic lava 56 crystalline silicates 56 hornfelsed 56 greywacke 56 cometary impacts 56 Pavonis Mons 56 stockworked 56 saprolitic 56 sericite schists 56 pelites 55 granodioritic 55 plagioclase 55 brittle deformation 55 quartz monzonite porphyry 55 sericite altered 55 vein stockwork 55 isotope fractionation 55 quartz feldspar 55 specular hematite 55 carbonatites 55 phyllosilicates 55 actinolite 55 rhyolite tuff 55 silicified limestone 55 komatiite 55 erupting lava 55 finely disseminated 55 loess 55 serpentinite 55 gabbro dykes 55 crustal rocks 55 metasediment 55 disseminated pyrrhotite 55 shear veins 55 Mafic 55 chloritic 55 hematite stained 55 ultramafic intrusives 55 hydrothermal activity 55 volcanic rocks 55 chalcedonic 55 metamorphism 55 iron carbonate 55 sericite quartz 55 volcano sedimentary sequence 55 mafic intrusive rocks 55 porphyritic 55 mineral olivine 55 diorites 55 rhyolite domes 55 hypabyssal 55 sulfosalts 55 carbonaceous chondrites 55 chondrules 55 carbonaceous material 55 mafic intrusives 55 kaolinite 55 ultramafic hosted 55 brittle ductile 55 limonitic 55 felsic intrusive 55 eclogitic 55 altered porphyry 55 cherty 55 fine grained sediments 55 carbonatized 55 hydrothermal fluids 55 pyrite altered 55 pentlandite 55 fragmental 55 altered ultramafic 55 Terra Meridiani 55 goethite 55 chlorite altered 55 dolomites 55 arsenopyrite bearing 55 sedimentary 55 sedimentary sequences 55 mafic volcanic 55 magnetite BIF 55 ultramafics 55 disseminated arsenopyrite 55 granitoid 55 altered felsic 55 silicified meta 55 ferric oxides 55 altered mafic volcanics 55 antimony Sb 55 biotite 55 silicate dust 55 eolian 55 serpentinized 55 rhyolites 55 Outcrops 55 pyrite disseminations 55 quartz monzodiorite 55 brecciated quartz veins 55 layered mafic 55 mylonite 55 uppermost layer 55 clastic sediments 55 sedimentary rock 55 grabens 55 iron oxides 55 felsic metavolcanics 55 quartz pyrite 55 albitized 55 variably silicified 55 Permo Triassic 54 amphibolite grade 54 advanced argillic 54 meta sedimentary rocks 54 pyroxenite 54 quartz sericite 54 Paleozoic sediments 54 amphibolite facies 54 calcareous siltstones 54 metasedimentary sequence 54 andesitic volcanic rocks 54 volcanogenic 54 argillaceous 54 amphibole 54 geochronology 54 stony meteorites 54 basalt flows 54 carbonate rocks 54 tectonically 54 quartzites 54 quartz calcite veining 54 evaporite deposits 54 Paleozoic sedimentary 54 siliceous 54 basalt 54 lakebed sediments 54 silicates 54 anomalous Au 54 magnetite hematite 54 carbonate sediments 54 granite porphyry 54 sedimentary layers 54 igneous rock 54 phyllic altered 54 tonalitic 54 breccias containing 54 Martian crust 54 bedrock outcrops 54 chlorite epidote 54 oceanic plates 54 spodumene bearing 54 gneisses 54 Lower Jurassic 54 volcanic breccias 54 hematite mafic 54 volcaniclastic 54 mafic volcanics 54 McMurdo Dry Valleys 54 glacial outwash 54 argillic altered 54 granitic 54 gabbro intrusive 54 silicified breccia 54 felsic intrusion 54 ferruginous 54 anomalies coincident 54 subduction 54 Archaean 54 enargite 54 dacites 54 realgar 54 felsic tuffs 54 fluorapatite 54 pyrite arsenopyrite 54 greisen 54 ultramafic 54 Proterozoic aged 54 mafic intrusion 54 abyssal plain 54 intrusive breccias 54 carnotite 54 calcium sulphate 54 sericitic 54 karst limestone 54 alteration halos 54 meteoritic material 54 volcanic ridges 54 nebular 54 volcanic magma 54 fault scarp 54 metasomatic 54 mafic metavolcanic 54 hematite goethite 54 melt inclusions 54 diatremes 54 andesite flows 54 Upper Triassic 54 volcano sedimentary rocks 54 biotite rich 54 REE enriched 54 Felsic 54 sedimentary deposits 54 latite 54 oceanic crust 54 Banded Iron Formation 54 hematite magnetite 54 felsic volcanic 54 sulphide mineral 54 garnet skarn 54 greenschist 54 sericite chlorite 54 detrital 54 mafic ultramafic rocks 54 felsic volcanic rocks 54 lamprophyre 54 diabase 54 magma ocean 54 marine sediments 54 skarn alteration 54 chrome diopside 54 sulfur isotope 54 Paleoproterozoic 54 stockwork veining 53 basaltic rock 53 magnetite alteration 53 hydrothermal 53 evaporite 53 dolomitic 53 spodumene rich 53 felsic intrusions 53 Valles Marineris 53 subducting plate 53 stockwork vein 53 volcano sedimentary 53 sulphates 53 strongly altered mafic 53 felsic dyke 53 finely disseminated pyrite 53 secondary chalcocite 53 clastic 53 outwash 53 massive sulfide mineralization 53 pegmatite dykes 53 carbonate veins 53 ultramafic rocks 53 Arsia Mons 53 graphite whiskers 53 disseminated chalcopyrite 53 pyroclastic material 53 sedimentary strata 53 seabed sediments 53 Chromitite 53 quartz sericite alteration 53 volcanic tuffs 53 Wollaston Domain 53 granitic pegmatite 53 mafic rocks 53 Archean aged 53 advanced argillic alteration 53 nepheline syenite 53 mesothermal 53 zircon crystals 53 hematite mineral 53 sedex 53 porphyritic intrusive 53 chalcopyrite sphalerite 53 pillow lava 53 bismuth Bi 53 silicified andesite 53 basalt volcanic 53 medium grained 53 presolar grains 53 igneous dikes 53 monzonite 53 phyllic 53 Sicily Mount Etna 53 altered volcanics 53 mafic volcanic rocks 53 Candor Chasma 53 carbonate globules 53 calcite 53 volcanic stratigraphy 53 fine grained sandstone 53 sulfate minerals 53 biogeochemical 53 muscovite 53 anomaly coincident 53 potassium feldspar 53 overlying layers 53 sedimentary sequence 53 palaeo 53 drillhole intersected 53 volcanic rock 53 collisional 53 intermediate metavolcanic rocks 53 subducting 53 Laurasia 53 quartz carbonate veining 53 banded iron 53 pyrrhotite chalcopyrite 53 sheeted veins 53 Matoush fault 53 intensely silicified 53 tuffaceous 53 disseminated magnetite 53 icy comets 53 B Chromitite 53 hematized 53 porphyritic andesite 53 aluminous 53 stockwork veins 53 calderas 53 porous sandstone 53 polymictic 53 isotopic ratios 53 smectite 53 exhalite 53 sulfide bearing 53 Late Paleozoic 53 K feldspar 53 felsic rocks 53 chondritic meteorites 53 chlorite sericite 53 intense hydrothermal alteration 53 Hydrothermal 53 felsic intrusives 53 weakly mineralized 53 spheroidal 53 xenoliths 53 rifting 53 felsic dikes 53 cave stalagmites 53 Yellowstone Caldera 53 structurally deformed 53 altered rhyolite 52 Ag Pb 52 lava tubes 52 Precambrian 52 sediments deposited 52 schistose 52 mafic metavolcanics 52 mineralized gabbro 52 greenstones 52 Messinian 52 breccia mineralization 52 volcanic caldera 52 wallrock 52 quartz carbonate vein 52 exhalative 52 quartz porphyry 52 quartz pyrite veins 52 Paleozoic carbonate 52 volcanic tuff 52 Molybdenite 52 andesite volcanics 52 subsurface ocean 52 intraplate 52 silicon monoxide 52 albite alteration 52 altered andesite 52 gneiss 52 alunite 52 sulphide mineralized 52 phyllite 52 autunite 52 quartz tourmaline breccia 52 syenite porphyry 52 felsic intrusive rocks 52 mudstone 52 siderite 52 pyrite pyrrhotite 52 volcanics 52 feldspar porphyry intrusive 52 sedimentary rocks 52 granitic gneiss 52 photosphere 52 hydrothermal breccia 52 argillites 52 quartz veins containing 52 gases vapors 52 jarosite 52 lunar highlands 52 sheared ultramafic 52 monzodiorite 52 Tertiary volcanic rocks 52 ocean ridges 52 tourmaline alteration 52 andesites 52 chloritized 52 pyrrhotite mineralization 52 earth crust 52 tholeiitic 52 Kilauea caldera 52 calc silicate skarn 52 mafic flows 52 silica breccia 52 syenitic 52 tectonic plate movements 52 altered granitic 52 porphyritic intrusive rocks 52 Jurassic Cretaceous 52 hematitic 52 anastomosing 52 arcuate 52 ultramafic sill 52 potassically altered 52 seafloor sediments 52 chromitite 52 spinels 52 quartz stringers 52 carbonaceous mudstone 52 quartz carbonate veins 52 upper tropospheric 52 tectonic activity 52 quartz veined 52 pyrochlore 52 altered siltstone 52 quartz feldspar porphyry 52 Jupiter moon Io 52 regolith 52 Granodiorite 52 crystallites 52 Intrusive Suite 52 Siberian Traps 52 convection currents 52 sulphide minerals 52 basalt rock 52 lava spewing 52 scheelite 52 compressional 52 lava fragments 52 calc silicate 52 quartz hematite 52 chalcopyrite bornite 52 chromitite layers 52 porphyry dykes 52 manganese oxide 52 stibnite 52 illite 52 craton 52 platinum Pt 52 mantle xenoliths 52 mafic ultramafic 52 pyroclastic flow 52 bicarbonate ions 52 terrane 52 chalcedonic quartz 52 Phanerozoic 52 fracture fillings 52 ejecta blanket 52 weakly interacting 52 quartz vein stockwork 52 terranes 52 wrinkle ridges 52 volcanic craters 52 jasperoids 52 disseminated sulphide mineralization 52 crustal plate 52 Carbonate rocks 52 cinder cones 52 amorphous silica 52 Arabia Terra 52 uraniferous 52 mineralized pegmatite 52 pyrites 52 altered ultramafic rocks 52 earths crust 52 Ozone O3 52 copper nickel sulphide 52 carbonate replacement 52 mafic metavolcanic rocks 52 pyrite veinlets 52 Ontario Lacus 52 epithermal quartz 52 mafic dyke 52 paleochannel 52 sulphide alteration 52 Comet 9P/Tempel 1 52 meteor impacts 52 Siple Dome 52 supergene enrichment 52 diorite intrusive 52 sericitic alteration 52 quartz vein stockworks 52 mineralized intrusive 52 tectonic movements 52 alaskitic 52 breccia 52 serpentinized peridotite 52 asteroidal 52 granitic porphyry 52 syenite intrusive 52 MMI soil geochemical 52 EW trending 52 circum Pacific 52 graphitic 52 silicified zones 52 sulfide minerals 52 ultramafic volcanic 52 volcanism 52 hydrothermal brecciation 52 carbon spherules 52 ammonia hydrate 52 pyrrhotite pyrite 52 rubbly 52 magma 52 paleo placer 52 evaporite minerals 52 igneous intrusive 52 shallowly buried 52 Elysium Planitia 52 banded epithermal 52 quartz alunite alteration 52 felsic porphyry 52 diatreme breccias 52 granitic pegmatites 51 mineral assemblages 51 iron sulfide 51 altered silicified 51 granitoid rocks 51 mafic intrusions 51 biotite magnetite 51 kimberlite breccia 51 Diorite 51 ejecta 51 overlying sandstone 51 Crustal 51 Kamoamoa eruption 51 incandescent lava 51 VY Canis Majoris 51 polar latitudes 51 lepidolite 51 silica sericite 51 metamorphic 51 silicate 51 sericite carbonate 51 tuffaceous sediments 51 neodymium Nd 51 spews ash 51 Nili Fossae 51 outer crust 51 volcanic basalt 51 porphyry dikes 51 REE bearing 51 feldspathic 51 alteration halo 51 limestones 51 dolostone 51 acid leached 51 GPa 51 propylitic altered 51 variably mineralized 51 graphitic sediments 51 overlying sedimentary 51 anticlines 51 wallrocks 51 feldspar porphyritic 51 Earth crust 51 limestone dolomite 51 carbonate altered 51 argillite 51 sulphide deposits 51 Proterozoic age 51 ankerite alteration 51 Tibetan Plateau 51 intermediate volcanics 51 subcrop 51 argillic 51 magnesium silicate 51 aluminum silicate 51 Pu ` 51 palladium Pd 51 chlorite schist 51 eudialyte 51 equatorial latitudes 51 sulfide veins 51 Detailed geological mapping 51 quartz tourmaline vein 51 breccia textures 51 Cu porphyry 51 sediments intruded 51 silicified brecciated 51 crackle breccia 51 unmineralized 51 vein stockworks 51 structural lineaments 51 Cretaceous sediments 51 dioritic 51 WNW trending 51 hydrothermally 51 Archean basement 51 lava flows 51 volcanic plumes 51 Quadrantid 51 anthropogenic carbon dioxide 51 biotite alteration 51 Lava flows 51 lithocap 51 carbonate 51 volcanic gases 51 thermal gradients 51 brecciated volcanic rocks 51 quartz pebble conglomerate 51 rhyolite dikes 51 downwelling 51 siltstones 51 silicified porphyry 51 hydrothermal venting 51 calc alkaline 51 meteoroids 51 alkali 51 Archean rocks 51 monzonite porphyry 51 talus slopes 51 arsenide 51 Pu'u O'o 51 sulfide deposits 51 eskers 51 basalt rocks 51 silicified zone 51 molten rock 51 rhyolite breccia 51 propylitic alteration 51 breccia vein 51 Amundsen Sea 51 Archean basement rocks 51 northerly trending 51 argillically altered 51 ilmenites 51 V# Mon 51 trending shear zone 51 Warmer oceans 51 quartz veinlets 51 formation BIF 51 glacial meltwater 51 Palaeozoic 51 Polycyclic aromatic hydrocarbons 51 anomalous concentrations 51 galena pyrite 51 chalcedonic silica 51 volcanic breccia 51 feldspar 51 protoplanets 51 exosphere 51 skarn altered 51 ferric oxide 51 haematite 51 quartz adularia veins 51 macrocrystic 51 disseminated sulphide 51 galactic disk 51 Suarez Fm 51 alaskite 51 tropopause 51 sulphide stringers 51 pyrite chalcopyrite 51 porphyry breccia 51 brecciated quartz 51 quartz muscovite 51 Sulphide mineralization 51 epithermal stockwork 51 argentiferous 51 intrusives 51 vein quartz 51 fumaroles 51 gangue 51 Batholith 51 zinc sulfide 51 lapilli tuffs 51 Porcupine Destor fault 51 biotite schists 51 auriferous quartz 51 volcanic cinders 51 copper sulphides 51 uraninite 51 Fe oxide 51 gaseous planets 51 Pyroclastic flows 51 polymictic conglomerate 51 Proterozoic sediments 51 Balmer Assemblage 51 Proterozoic basement 51 plutons 51 Plate tectonics 51 molybdenite mineralization 51 quartz sericite pyrite 51 airglow 51 unconsolidated sediments 51 magnetite skarn 51 stratigraphically below 51 jasperoid 51 calcareous 51 intermetallic compounds 51 Anomalous radioactivity 51 pyrite pyrrhotite chalcopyrite 51 silica pyrite 51 stratigraphic sequence 51 spinel 51 Orcus Patera 51 pathfinder element 50 splay faults 50 magnesium sodium potassium 50 epithermal mineralization 50 Antarctic icecap 50 granite greenstone 50 mineralized skarn 50 heterolithic 50 porphyry intrusive 50 epithermal mineral 50 hydrated minerals 50 austenite 50 quartz breccia 50 Kambalda style 50 Martian dunes 50 martian rocks 50 narrow quartz veins 50 carbonaceous shales 50 altered metasediments 50 pegmatite dyke 50 oceanic trenches 50 Cretaceous Tertiary 50 gossanous 50 quartz feldspar porphyries 50 colluvium 50 Kermadec Arc 50 crystalline solids 50 hypersaline 50 felsic volcanics 50 cumulus cloud 50 Terra Sirenum 50 epidote alteration 50 Grimsvötn volcano 50 porphyry intrusives 50 conglomeratic 50 surficial 50 blue supergiant 50 Earths crust 50 geochemical signature 50 ophiolite 50 oxygen isotopic composition 50 silicic alteration 50 lunar magma 50 volcano sedimentary sequences 50 strongly foliated 50 secondary biotite 50 silica 50 hydroxyl molecules 50 quartz diorite 50 Fossae 50 silica alteration 50 granitic intrusive 50 decalcified 50 spherules 50 lithic tuff 50 potassic alteration 50 Geologically speaking 50 Norra Karr 50 shallowly dipping 50 quartz magnetite 50 chemically reactive 50 Halemaumau crater 50 bornite chalcopyrite 50 yardangs 50 andesite porphyry 50 stratabound 50 PGEs 50 manganese zinc 50 overlie 50 abundant quartz veining 50 quartz boulders 50 bornite 50 brecciated zones 50 radioactive decay 50 extensional 50 tectonic 50 isotherms 50 limestone xenoliths