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(Click for frequent words.) 64 depth hoar 62 hoar frost 60 loess 60 snowcover 58 sedimentary layers 58 ancient lava flows 58 volcanic tuff 58 sulfide minerals 58 temperature inversion 58 basaltic rocks 57 volcanic basalt 57 sediments deposited 57 porous sandstone 57 overlying layers 57 erosional 57 icy crust 57 igneous rock 57 karstic 57 metamorphic rock 57 hoarfrost 57 limestone bedrock 56 outwash 56 icesheet 56 cumulus cloud 56 unconsolidated sediments 56 snowcaps 56 cumulonimbus cloud 56 orographic 56 windblown sand 56 claystone 56 carbonate sediments 56 subglacial 56 temperature inversions 56 Transantarctic Mountains 56 crossbedding 56 mantle plumes 56 altocumulus 55 sedimentary deposits 55 Laurentide Ice Sheet 55 atmospheric moisture 55 tufa 55 jarosite 55 calderas 55 upwellings 55 Vatnajökull 55 drumlins 55 clay subsoil 55 overlying sediments 55 alluvial sediments 55 receding glaciers 55 molten magma 55 receding glacier 55 solidified lava 55 cinder cones 55 granitic basement 55 clasts 55 frazil 54 volcanic lava flows 54 cryovolcanism 54 melting glacial 54 Siple Dome 54 Navajo sandstone 54 foliation 54 subalpine 54 metamorphic rocks 54 anticlines 54 turbidites 54 glacial silt 54 volcanic cone 54 Ithaca Chasma 54 volcanic magma 54 yardangs 54 felsic tuff 54 hydrothermal fluid 54 Martian gullies 54 glacial meltwater 54 above treeline 54 moisture seeps 54 graupel 54 melting glacier 54 Arctic airmass 54 grabens 54 karst topography 54 depositional 54 ejecta blanket 54 downwelling 54 icefalls 54 isobars 53 hogback 53 airmass 53 domal 53 sedimentary sequences 53 algal mats 53 stratovolcano 53 talus slopes 53 Patagonian Andes 53 lava domes 53 hummocks 53 volcanic caldera 53 calcite 53 quartz alunite 53 Laurentide ice sheet 53 olivine rich 53 Mount Mazama 53 sandstone formations 53 felsic intrusions 53 flood basalts 53 earths crust 53 Kilimanjaro glaciers 53 mantle convection 53 frazil ice 53 amphibolite 53 porphyritic andesite 53 quartz feldspar porphyry intrusive 53 stratiform 53 Capricorn Glacier 53 advection 53 basaltic lava 53 cryosphere 53 alluvial soils 53 massifs 53 cratons 53 vein quartz 53 silicic 53 bedrock outcrops 53 pyroclastics 53 Late Paleozoic 53 karst terrain 53 layered sedimentary rock 53 dolerite 53 subglacial lakes 53 leeward slopes 53 glacial till 53 ferric oxides 53 altered porphyry 53 Reiner Gamma 53 peridotites 53 altered ultramafic rocks 53 halite 52 lunar crust 52 mossy forest 52 landforms 52 rime ice 52 katabatic winds 52 sastrugi 52 glacial valleys 52 McMurdo Dry Valleys 52 disseminated pyrrhotite 52 graphitic conductors 52 alluvial plains 52 stratus clouds 52 lenticular clouds 52 gypsum crystals 52 granodiorite porphyry 52 La Niña winters 52 amphibolite iron formation 52 deep convective clouds 52 granite outcroppings 52 pyrite stringers 52 volcanic sediments 52 rubbly 52 snow 52 stratigraphic sequence 52 Elysium Planitia 52 argillically altered 52 sedimentary rock 52 polar vortex 52 continental crust 52 Melting snow 52 extrusive 52 porous limestone 52 colliding tectonic plates 52 lithosphere 52 chondrules 52 gustnado 52 dolomites 52 fine grained sediment 52 oceanic crust 52 anticyclonic 52 marine sediments 52 sericitic alteration 52 seracs 52 Amundsen Sea Embayment 52 ponded 52 advanced argillic alteration 52 silicate rocks 52 basalt 52 moulins 51 cirrus clouds 51 argillic altered 51 faceted crystals 51 dolostone 51 cirrus 51 glacially carved 51 disseminated pyrite mineralization 51 Methane hydrate 51 hydrothermally altered 51 mistiness 51 convective 51 crustal rocks 51 ignimbrite 51 glacial outwash 51 dense clumps 51 andesitic rocks 51 basalt cliffs 51 quartz pyrite veins 51 Outcrops 51 paragneiss 51 sericitization 51 permafrost melts 51 Steep slopes 51 glacial moraine 51 evaporite 51 avalanches 51 Ice floes 51 hydrosphere 51 polar craters 51 vuggy silica 51 Atlantic Multidecadal Oscillation AMO 51 eclogite 51 tropopause 51 ice jams 51 phreatic 51 Navajo Sandstone 51 pyrrhotite chalcopyrite 51 basalt rocks 51 Syrtis Major 51 olivines 51 Glacial Lake 51 lapilli 51 ridging 51 fine grained sediments 51 alpine terrain 51 igneous rocks 51 thermocline 51 orogenic 51 sulfate minerals 51 Yellowstone Caldera 51 goethite 51 colluvium 51 variably silicified 51 Martian dunes 51 carbonaceous mudstone 51 silica carbonate 51 phyllosilicate 51 quartz stockworks 51 cumulous clouds 51 Vastitas Borealis 51 Nisqually Glacier 51 sandstone slabs 51 basaltic rock 51 avalanche chutes 51 snowslides 51 lithospheric 51 subhorizontal 51 calcareous 51 glacier 51 cumulonimbus 51 permafrost 51 crevasses 51 overhanging cliffs 51 volcaniclastics 51 calcite crystals 51 finely disseminated 51 erupting lava 51 recrystallized 51 stromatolite 51 water vapor condenses 51 skarn alteration 51 Precambrian rocks 51 glaciers recede 51 volcanic breccia 51 quartz sericite alteration 51 dacitic 51 intraplate 50 gneissic 50 basalt volcanic 50 lateritic 50 dry airmass 50 #z ECMWF 50 perma frost 50 talus 50 ferruginous 50 stalagmite 50 diorites 50 La Nina pattern 50 sealevel 50 pyrite veins 50 Puget Sound lowlands 50 mineral olivine 50 Leda clay 50 phyllosilicates 50 windward slopes 50 abundant quartz veining 50 Devonian limestone 50 upper elevations 50 olivine crystals 50 arsenopyrite veins 50 sticky mucous 50 Palaeozoic sedimentary 50 Puu Oo 50 lava eruptions 50 limonitic 50 Madden Julian Oscillation 50 xenoliths 50 volcanic cinders 50 Martian volcanoes 50 granitoids 50 volcano sedimentary sequence 50 northwesterly flow 50 Ares Vallis 50 epidote alteration 50 argillic alteration 50 pyroclastic material 50 brownish haze 50 ignimbrites 50 slab avalanches 50 gossanous 50 snowsquall 50 quartz adularia 50 Ice Age glaciers 50 norite 50 fault scarps 50 ductile deformation 50 tarns 50 vuggy quartz 50 silicate dust 50 tephra 50 polygon shaped 50 Jovian atmosphere 50 granitic rock 50 glacial overburden 50 Arsia Mons 50 disseminated sulphide mineralization 50 craggy granite 50 silty 50 karsts 50 pore spaces 50 supercooled droplets 50 famous Krakatau volcano 50 mudstone 50 alluvium 50 Permafrost 50 copper oxides 50 milky quartz 50 magmatic 50 glaciated terrain 50 wolverine habitat 50 Orcus Patera 50 exhalite 50 meteor impacts 50 Gamba sandstone 50 glaciers receded 50 carbonate minerals 50 Tertiary volcanic 50 WNW trending 50 Freezing fog 50 unmelted 50 biotite alteration 50 dacite porphyry 50 felsic intrusives 50 refroze 50 glaciers retreated 50 impermeable shale 50 comet nuclei 50 Greenland icecap 50 siliceous sediments 50 polar latitudes 50 limestone outcrops 50 magmas 50 diabase 50 karst limestone 50 iron oxides 50 Melted snow 50 Amundsen Sea 50 silicic alteration 50 Candor Chasma 50 HiRISE image 50 Whillans Ice Stream 50 scoria 50 graben 50 Messinian 50 haematite 50 overlying sedimentary 49 frost heaves 49 landsliding 49 pillow lavas 49 interannual variability 49 terminal moraine 49 slushy snow 49 oceanic plates 49 aspen leaves 49 Svaliava 49 Grímsvötn 49 lava fountains 49 stalactite 49 igneous 49 Supercell thunderstorms 49 cyclonic circulation 49 porphyritic intrusive 49 Antarctic glaciers 49 hydrothermal activity 49 pyroclastic 49 gabbros 49 hydrothermal venting 49 glacial moraines 49 lithium bearing brines 49 basaltic 49 olivine 49 icefields 49 argillization 49 westerly gales 49 drumlin 49 latite 49 narrow ravines 49 humid airmass 49 cirrus cloud 49 mist enveloped 49 chromosphere 49 Cretaceous sandstones 49 serpentinized 49 El Niño winters 49 landform 49 Snowmageddon blankets Mid Atlantic 49 coarser grained 49 cirques 49 cumulus clouds 49 avalanching 49 glacial ice 49 hematite alteration 49 oceanic lithosphere 49 meltwater 49 hardened lava 49 limestone karst 49 climatic variations 49 asthenosphere 49 ice nucleation 49 dolomitic 49 Saharan dust 49 retreating glacier 49 clayey 49 rock outcrops 49 snowpack melts 49 chlorite alteration 49 lake sediments 49 post perovskite 49 forecaster Helen Chivers 49 permafrost degradation 49 circumstellar 49 hydrothermally 49 glacial melt 49 felsic metavolcanic 49 Martian craters 49 powdery snow 49 sulfidic 49 pyrrhotite mineralization 49 treeline 49 lava flowed 49 seabed sediments 49 chromitite layers 49 brittle deformation 49 atmospheric convection 49 scudding clouds 49 rhyodacite 49 quartz carbonate veining 49 anorthosite 49 Antarctic Ice Shelf 49 vuggy 49 ultramafic rock 49 downbursts 49 hydrothermal fluids 49 Morshyn 49 lava tubes 49 unweathered 49 snowline 49 spherules 49 andesitic volcanic 49 La Niña pattern 49 alpine tundra 49 Birimian Greenstone Belt 49 metasomatic 49 lichen covered 49 groundwater seepage 49 altered mafic 49 Subtropical Storm Otto 49 lunar craters 49 breccia zones 49 igneous intrusive 49 manto mineralization 49 columnar basalt 49 mesa tops 49 volcanic ashes 49 gabbroic 49 mafic intrusive 49 supergene enrichment 49 melting snow 49 brecciated limestone 49 volcanogenic 49 quartz grains 49 calc alkaline 49 Seismicity 49 Konrad Steffen 49 Thorthormi 49 snowcap 49 freezing fog 49 overlying sandstone 49 pervasive silicification 49 quartz calcite 49 fluffy flakes 49 circular depressions 49 Mars Meridiani Planum 49 coulees 49 lacustrine 49 magnetite alteration 49 sedimentary layer 49 Osterhuber 49 alpine peaks 49 paleochannel 49 geothermal gradient 49 volcanic breccias 49 evergreen forests 49 alluvial gravel 49 rocky ridges 49 lakebed sediments 49 alteration halo 49 Cambrian Ordovician 49 greywacke 49 Herschel Crater 49 coral skeletons 49 Cryogenian 49 #cm 8in 49 manganese oxides 49 Arabia Terra 49 firn 49 magmatism 49 mesoscale 48 limestone cliff 48 icesheets 48 tidally 48 martian rocks 48 basalt rock 48 filamentary 48 biotite rich 48 volcanoclastic 48 geomorphic 48 sparsely vegetated 48 felsic dikes 48 anticyclones 48 Sediments 48 westerly trough 48 gneisses 48 tuffaceous rocks 48 glaciers melted 48 glacial lake 48 Kocet 48 sphalerite galena 48 bora wind 48 ultramafic intrusives 48 gabbroic intrusion 48 aeromagnetic anomaly 48 stalactites stalagmites 48 lava flows 48 Enceladus icy 48 quartz carbonate vein 48 vugs 48 komatiitic 48 quartz sericite 48 rhyolitic 48 dyking 48 bluebird skies 48 silts 48 La Niñas 48 explosive eruptions 48 phyllic 48 tephra dam 48 phyllite 48 penitentes 48 tropical glaciers 48 manganese mineralization 48 kimberlite breccia 48 snow melt 48 saprolitic 48 rugged topography 48 carnotite 48 atomically flat 48 hydrological cycle 48 supergene mineralization 48 Himalayan river basins 48 silica breccia 48 above timberline 48 plowable snow 48 disseminated sulfide 48 granite cliffs 48 silicate minerals 48 intrusive porphyry 48 altered granodiorite 48 gneissic rocks 48 melting snowpack 48 evaporite deposits 48 andesitic volcanic rocks 48 lahars 48 Banerdt 48 methane hydrates exist 48 Greenland icesheet 48 prevailing westerly winds 48 stony meteorites 48 Lake Untersee 48 mylonite 48 quartz veinlets 48 volcanic lava 48 alteration halos 48 tuffs 48 abyssal 48 Maastrichtian 48 yedoma 48 Yellowstone caldera 48 alkalic 48 felsic tuffs 48 oxide layer 48 komatiite 48 quartz magnetite 48 sand silt 48 tuffaceous sediments 48 leafless trees 48 mesocyclone 48 limestone outcroppings 48 called lobate scarps 48 concretion 48 molten rocks 48 Norris Geyser Basin 48 glacial melting 48 mountain snowpacks 48 supergene copper 48 igneous intrusion 48 escarpments 48 sulphidic 48 REE enriched 48 volcano lava dome 48 amphibolite facies 48 snowpack 48 seismic anisotropy 48 ice crystals 48 carbonate alteration 48 meteorologist Myron Padgett 48 subalpine meadows 48 andesitic 48 windblown snow 48 acid sulphate alteration 48 Chromitite 48 inversion layer 48 granite boulders 48 quartz tourmaline veins 48 crustal thickness 48 karst geology 48 silty mud 48 geologic strata 48 refugia 48 Chasma Boreale 48 disseminated chalcopyrite 48 El Niños 48 iceberg calving 48 mudstones 48 snowsqualls 48 treeless plains 48 Last Glacial Maximum 48 Geologically speaking 48 stockwork veins 48 iron carbonate 48 Rossby waves 48 wooded terrain 48 mineralized quartz veins 48 nebulosity 48 Fram Strait 48 magma boiling 48 granitic 48 pentlandite 48 speleothems 48 frost heave 48 Martian crust 48 hematite stained 48 westerly dipping 48 Gamburtsev 48 hematite mineral 48 lavas 48 paleomagnetic 48 Guatemala Pacaya volcano 48 fragmental 48 Tenmile Range 48 metasediment 48 fairy chimneys 48 photosphere 48 Bruce Pressgrave geophysicist 48 stockworked 48 subglacial lake 48 chlorite epidote 48 aeolian 48 Felsic 48 hummocky 48 Turnagain Pass 48 mantle lithosphere 48 basalt flows 48 Tibetan Plateau 48 volcanic rock 48 Quaternary Period 48 Arctic oscillation 48 Solang ski slopes 48 hornblende 48 Dry Valleys 48 polar stratospheric 48 snows 48 peridotite 48 towering cumulus 48 basalts 48 placer workings 48 diatreme breccia 48 deformational 48 cloudscapes 47 smectite 47 Tararuas 47 Mont Blanc Massif 47 glaciers 47 clouds obscuring 47 chalcopyrite mineralization 47 Arctic permafrost 47 impermeable clay 47 ocean upwelling 47 aragonite 47 pediment gravels 47 andesite 47 clastic sediments 47 spindrift 47 striations 47 gradational 47 intensely silicified 47 teleconnections 47 Sinus Meridiani 47 stockwork quartz veining 47 icicle shaped 47 convection currents 47 chloritic 47 serpentinite 47 Warm temps 47 Gamburtsev Mountains 47 glacier melts 47 alpine ecosystems 47 mafic rocks 47 stockwork vein 47 quartz stockwork veining 47 crystalline solids 47 volcanic arcs 47 sericitic 47 Jurassic sandstone 47 precip 47 slickrock 47 hydrothermal breccia 47 massive sulfide mineralization 47 isostatic rebound 47 lobate 47 Scattered rains 47 dunite 47 stockwork veining 47 quartz feldspar 47 malachite mineralization 47 quartz pebble conglomerate 47 geological stratum 47 leucogranite 47 retreating glaciers 47 mesothermal 47 Ontario Lacus 47 quartz monzonite 47 lowermost mantle 47 hydrated silica 47 Gusev crater 47 leached capping 47 sedimentary rocks 47 autunite 47 Mud volcanoes 47 carbonate altered 47 driftless 47 Hellas Planitia 47 northwesterlies 47 crystallites 47 tectonic activity 47 gabbro dykes 47 Paleozoic sediments 47 Shiva lingam 47 peaty soil 47 amphibolites 47 kaolinite 47 altered ultramafic 47 Alpine glaciers 47 permanently shadowed regions 47 biotite schist 47 Archean aged 47 basaltic magma 47 hydrothermal alteration 47 southwesterly flow 47 coniferous forest 47 tinder dry Nicklin 47 Alaskan glacier 47 decadal variability 47 oceanic circulation 47 hornfels 47 pyrrhotite pyrite 47 triggered avalanches 47 thawing permafrost 47 sediments 47 snowfield 47 earth crust 47 permafrost thaws 47 moraines 47 Illumination Saddle 47 Precambrian basement 47 Front Range foothills 47 granite bedrock 47 altered andesitic 47 steep ravines 47 calcareous sandstone 47 dip shallowly 47 smoggy haze 47 moraine 47 abyssal plains 47 volcaniclastic kimberlite 47 siltstone 47 semidesert 47 layered ultramafic 47 moon Mimas 47 Neutron stars 47 albedo feedback 47 Sandbars 47 Paleozoic sedimentary 47 tectonically 47 meta sediments 47 Soufriere Hills 47 mantled 47 lakebed 47 calcic 47 diatremes 47 GLOF 47 silicate mineral 47 massive sulphide horizons 47 dense mats 47 lunar magma 47 Garrick Bethell 47 dacite 47 chloritization 47 winterlike 47 serac 47 altered andesite 47 alteration assemblages 47 volcanic 47 Drifting snow 47 phyllic alteration 47 Snowpack 47 secondary chalcocite 47 Tectonic plates 47 equatorial latitudes 47 Meager Creek 47 variably altered 47 basalt lava 47 adularia 47 Dhauladhar range 47 subterranean caves 47 lava extrusion 47 Snow squalls 47 hydrothermal magnetite 47 Mosteiko 47 Mount Meager 47 glaciated 47 freeze thaw cycles 47 clay alteration 47 Redoubt Volcano 47 granitic rocks 47 felsic volcanic 47 glacial 47 Tertiary volcanics 47 climatologically 47 sulphide stringers 47 pyroxenite 47 wooden timbers 47 southern latitudes 47 glacial lakes 47 magma ocean 47 siliciclastic 47 eskers 47 quartz feldspar porphyry 47 Chris Waythomas 47 wrinkle ridges 47 nimbus clouds 47 Palaeozoic 47 tectonic uplift 47 Earths crust 47 limber pine 47 hydrate crystals 47 colluvial 47 pollute groundwater downstream 47 Tropical Storm Paloma 47 Tharsis Rise 47 Kristin Vogfjord geologist 47 ultramafic rocks 47 B Chromitite 47 crustal 47 depositional environment 47 rhyolites 47 Neogene 47 volcanoes erupt 47 microbialites 47 polar icecap 47 quartz carbonate veins 47 Jakobshavn 47 Dave Loewenthal 47 potassic altered 47 quasicrystal 47 frigid arctic 47 finely layered 47 DELMARVA WEATHER 47 colder denser 47 silicified andesite 47 Lake Keechelus 47 Alfven waves 47 anhydrite 47 rafted debris 47 Warmer oceans 47 colder temps 47 limestones 47 subarctic 47 Scattered clouds 47 epidote 47 midlatitude 47 barometric pressures 47 karst 47 volcaniclastic 47 microfossil 47 shadowed craters 47 Blowing snow 47 dioritic 47 sedimentary 47 Eyjafjallajökull glacier 47 komatiites 47 saturated soils 46 alluvial plain 46 meteorologist Kyle Fredin 46 Qilian Mountain 46 corrugation 46 glaciated peaks 46 5cm 2in 46 headwall glistening white 46 spruce fir forests 46 coronal holes 46 Himalaya Mountains 46 metamorphism 46 gabbro 46 Terra Meridiani 46 crackle breccia 46 tectonics 46 pyrite galena 46 subpolar gyre 46 rhododendron thickets 46 saxifrage 46 shallow depressions 46 meta sedimentary rocks 46 conical dome 46 tectonic movements 46 microstructural 46 treelines 46 thermal gradient 46 slab avalanche 46 patchy freezing drizzle 46 bark peels 46 fumarole 46 low relative humidities 46 Caloris Basin 46 Khumbu Glacier 46 ashfall 46 seafloor sediment 46 spruce fir forest 46 pyritized 46 inverted cone 46 El Nino Southern Oscillation 46 convective clouds 46 meta sedimentary 46 cyclonic circulations 46 iron sulfide 46 volcano sedimentary sequences 46 magma mixing 46 Stan Wasowski 46 circumstellar disk 46 talus slope 46 syenite gneiss 46 accumulating snows 46 Pu'u O'o 46 siliceous breccia 46 metal zonation 46 sediment 46 silica alteration 46 chargeability highs 46 magmatic hydrothermal 46 siltstones 46 Prairie Evaporite Formation