Related by context. All words. (Click for frequent words.) 66 Tertiary Period 65 Cretaceous Paleogene 64 Permian Triassic 62 Cenozoic Era 60 Neogene 58 hornblende 58 Late Devonian 58 Younger Dryas 57 iridium layer 57 Permo Triassic 57 Cretaceous Tertiary KT 57 Ordovician 57 Palaeozoic 57 magmatism 57 granitoids 57 basaltic rocks 57 Toba eruption 57 Paleocene 57 KT boundary 57 Permian Triassic boundary 57 Cretaceous Paleogene boundary 56 silicic 56 Triassic Jurassic 56 Quaternary Period 56 metasomatic 56 Cretaceous Tertiary boundary 56 felsic intrusions 56 Permian Period 56 Paleocene Eocene Thermal Maximum 55 Jurassic Cretaceous 55 Neoproterozoic 55 Carboniferous 55 volcaniclastics 55 Eocene Epoch 54 Late Ordovician 54 Paleogene 54 Precambrian 54 faunas 54 quartz feldspar gneiss 54 Cretaceous periods 54 andesitic rocks 54 sulphidic 54 Late Cretaceous 54 peridotites 54 gabbro dykes 54 ignimbrite 53 Burgess Shale 53 komatiitic 53 dacitic 53 plutonic rocks 53 Alaskite 53 Precambrian rocks 53 marine sediments 53 orogenic 53 andesitic volcanic rocks 53 Upper Triassic 53 layered ultramafic 53 Mesoproterozoic 53 pegmatitic 53 quartz feldspar porphyries 53 hematite stained 53 tonalite 53 Eocene Oligocene 53 tuffaceous rocks 53 trending shear zone 53 Sulphide mineralization 53 Moho 53 Jurassic Period 53 glaciations 53 felsic dike 53 arcuate 53 Permian extinction 52 grabens 52 Maastrichtian 52 Palaeozoic sedimentary 52 granitic rocks 52 paleomagnetic 52 amphibolite facies 52 Middle Devonian 52 Au Cu mineralization 52 Laurentide Ice Sheet 52 gabbro dyke 52 ultramafic rock 52 massive sulfide mineralization 52 flood basalts 52 ultramafic unit 52 Laurentide ice sheet 52 Chicxulub crater 52 Archaean 52 felsic intrusive 52 Cambrian Period 52 diorite porphyry 52 Quaternary 52 Cambrian explosion 52 ultramafic mafic 52 Cambrian Ordovician 52 andesite flows 52 supercontinent 52 Djambaye II 52 ignimbrites 52 polymictic conglomerate 52 granitic intrusions 52 sedimentary deposits 52 andesitic flows 52 mafic rocks 52 granodiorites 52 northerly trending 52 craton 52 Paleozoic carbonate 52 pelitic gneiss 52 Cretaceous Period 52 Palaeocene Eocene Thermal Maximum 52 erosional 52 Paleoproterozoic 51 Mesozoic 51 mineralized breccias 51 pelitic 51 amphibolite 51 Cretaceous 51 lithocap 51 felsic rocks 51 basaltic 51 Ediacaran 51 Iguanodon 51 ramidus 51 Late Jurassic 51 Gneiss 51 Proterozoic 51 mafic intrusion 51 depositional 51 crackle breccia 51 rhyolite tuff 51 Felsic 51 Early Cretaceous 51 overlying sediments 51 volcano sedimentary sequence 51 sedimentary sequences 51 Eocene 51 bonebed 51 stockwork veining 51 Miocene epoch 51 quartz alunite 51 cherts 51 gabbros 51 sulphide mineral 51 layered mafic 51 Permian Triassic extinction 51 pyroxenite 51 lapilli 51 Paleozoic rocks 51 mineralized diorite 51 granitoid rocks 51 oceanic lithosphere 51 granodiorite porphyry 51 mass extinction 51 calcareous siltstones 51 glaciers receded 51 quartz sulphide vein 51 evaporite 51 hornfelsed 51 Ediacara 51 avian dinosaurs 51 quartz magnetite 51 Late Cretaceous Period 51 altered andesitic 51 NE trending 51 continental crust 50 alkalic 50 cretaceous 50 vein stockwork 50 volcanic caldera 50 easterly trending 50 basaltic magma 50 Sedimentary rocks 50 geological strata 50 pillow lavas 50 Devonian Period 50 chalcedonic silica 50 tuffaceous sediments 50 glaciation 50 andesitic 50 Fig. 1b 50 strongly foliated 50 ultramafic intrusives 50 metasedimentary 50 Late Triassic 50 depositional environment 50 kyr 50 Noachian 50 Chazy Reef 50 asteroid impacts 50 Banded Iron Formation 50 pyrrhotite chalcopyrite 50 seafloor sediments 50 Ediacaran Period 50 metamorphism 50 Gondwanaland 50 ENE trending 50 quartz adularia 50 diabase dike 50 quartz monzonite 50 circular magnetic anomaly 50 Cenomanian 50 phyllosilicate 50 B Chromitite 50 Lower Cretaceous 50 gabbroic 50 trending mineralized 50 silicified zone 50 glaciers retreated 50 Snowball Earth 50 Cambrian Explosion 50 mafic intrusive 50 anorthosite 50 AHGZ 50 Pleistocene Epoch 50 extrusive 50 fissure eruption 50 metavolcanics 50 Neoproterozoic era 50 G#.# +#.# 50 ejecta blanket 50 Ordovician limestone 50 unmineralized 50 Cenozoic era 50 dunite 50 ferruginous 50 paleochannel 50 post perovskite 50 Shiveluch 50 foreland 50 mylonite 50 stratovolcano 50 volcanism 50 felsic tuff 50 metamorphic rocks 50 Pleistocene Age 50 Last Glacial Maximum 50 volcanogenic 50 diabase dyke 50 gneissic 50 Antarctic ozone 50 sedimentary layers 50 diatreme breccia 49 gabbro sill 49 Messinian 49 andesitic volcanics 49 mineralising 49 Birimian metasediments 49 dioritic 49 porphyritic 49 breccia zone 49 Syrtis Major 49 sauropodomorph 49 vuggy silica 49 Gamburtsev 49 Caballos Formation 49 rhyodacite 49 andesite volcanics 49 Cryogenian 49 meta sediments 49 intensely oxidized 49 manganese mineralization 49 NNW trending 49 komatiite 49 Triassic 49 felsic metavolcanic 49 pyroclastics 49 subvolcanic 49 KT extinction 49 rhyolites 49 advanced argillic alteration 49 Chicxulub impact 49 anticlines 49 dike swarm 49 Eocene epoch 49 claystone 49 Key Tuffite 49 stratigraphic sequence 49 Paleozoic 49 greenstones 49 Gigantopithecus 49 mineralized mafic 49 siderite 49 massive sulphide horizon 49 cinder cones 49 sediments intruded 49 volcanic stratigraphy 49 Footwall Zone 49 metavolcanic rocks 49 hydrothermal breccia 49 crustal thickness 49 banded iron 49 Cenozoic 49 volcanic cone 49 porphyritic andesite 49 silica carbonate 49 breccia pipes 49 Siberian Traps 49 Icadyptes 49 magmas 49 lobe finned fishes 49 massifs 49 volcano sedimentary sequences 49 mudstone 49 angiosperm 49 mya 49 Jurassic sandstone 49 Laurasia 49 altered porphyry 49 called lobate scarps 49 receding glacier 49 structural lineaments 49 EW trending 49 porphyry copper molybdenum mineralization 49 altered felsic 49 kimberlite breccia 49 diorites 49 Phanerozoic 49 tungsten mineralization 49 Miocene Epoch 49 mineralized intrusive 49 granitic 49 wrinkle ridges 49 Oligocene 49 paleo placer 49 unconformably overlain 49 ichthyosaur 49 Late Paleozoic 49 Lower Proterozoic 49 Middle Eocene 49 volcanic tuff 49 dolostone 48 meta sedimentary rocks 48 Upper Palaeolithic 48 accretionary 48 sericite carbonate 48 relict 48 granite gneiss 48 exon intron 48 quartz calcite 48 quartz vein stockwork 48 altered ultramafic rocks 48 quartz monzonite porphyry 48 Lower Jurassic 48 hydrothermally altered 48 pyrite halo 48 rhyolite tuffs 48 Maybrun 48 Pliocene 48 colluvial 48 Granodiorite 48 disseminated sulphide mineralization 48 granitic intrusion 48 amphibolites 48 H. habilis 48 Plio Pleistocene 48 Ordovician extinction 48 intraplate 48 fine grained sandstone 48 Oligocene epoch 48 inhomogeneities 48 Ultramafic 48 siliciclastic 48 calc silicate 48 speleothems 48 Mount Mazama 48 Sumatra Andaman earthquake 48 metamorphic rock 48 granodiorite intrusive 48 ankerite 48 phreatic 48 leucogranite 48 esker 48 magnetic susceptibility 48 Cretaceous sandstones 48 foraminifera 48 McMurdo Dry Valleys 48 greenschist facies 48 locally graphitic 48 stockwork veins 48 paragneiss 48 sedimentary sequence 48 Middle Pleistocene 48 granitoid 48 phyllosilicates 48 quartz stockwork zone 48 graphitic conductors 48 Laetoli Tanzania 48 fault scarp 48 gabbroic rocks 48 Copperstone Fault 48 granitic pegmatite 48 basalt columns 48 deglaciation 48 Uranium mineralization 48 Junnagunna 48 hydrothermal brecciation 48 silicified breccia 48 basalts 48 quartz sericite 48 terrane 48 paleochannels 48 planktonic foraminifera 48 quartz carbonate veining 48 basinal 48 felsic dykes 48 felsic intrusives 48 ornithischians 48 clastic rocks 48 variably altered 48 biogeographic 48 basaltic rock 48 geophysically 48 igneous rocks 48 Genyornis 48 metasedimentary sequence 48 lamprophyre 48 volcanoclastic rocks 48 goethite 48 conodonts 48 Pleistocene epoch 48 carbonate veins 48 volcanic breccias 48 felsic volcanics 48 subglacial 48 electromagnetic anomaly 48 Marge Vein 48 Cretaceous sediments 48 arsenopyrite pyrite 48 landforms 48 quartz sericite alteration 48 biotite schist 48 amphibolite grade 48 Late Miocene 48 graben 48 rhyolite domes 48 hangingwall 48 terranes 48 geochronology 48 carboniferous 48 REE bearing 48 Pine Creek Orogen 47 Chicxulub Crater 47 mineralized skarn 47 crustal 47 subducting plate 47 Middle Paleolithic 47 Casa Berardi Fault 47 magnetite bearing 47 gossanous 47 hematite goethite 47 turbidites 47 cratons 47 sheeted vein 47 Appy Sluijs 47 glaciers melted 47 hominid fossil 47 brittle deformation 47 interglacial period 47 Arabia Terra 47 porphyry intrusion 47 reionization 47 Middle Miocene 47 arkosic 47 coeval 47 igneous 47 exhalite 47 Gongondy 47 kaolinite 47 pyroxenites 47 Leduc Formation 47 sulfidic 47 Merensky Reef 47 sulphides pyrite 47 breccia pipe 47 serpentinized 47 Triassic formations 47 biotite alteration 47 Stegodon 47 volcanoclastic 47 gneissic rocks 47 NNE trending 47 Proterozoic sediments 47 porphyry mineralization 47 Upper Cretaceous 47 stockwork breccia 47 rhyolite dome 47 gneiss 47 tonalitic 47 Mesozoic era 47 magmatic 47 Cretaceous Jurassic 47 palaeo 47 stockwork vein 47 lithosphere 47 synvolcanic 47 niobium mineralization 47 Paleozoic sediments 47 porphyry dykes 47 calcareous 47 Carboniferous Period 47 Pleistocene Ice Age 47 felsic dikes 47 detrital 47 WNW trending 47 magmatic hydrothermal 47 leached capping 47 gabbro 47 thrust faulting 47 Middle Jurassic 47 Aptian 47 stibnite 47 Transantarctic Mountains 47 chondrites 47 sinistral 47 interglacial 47 Drill hole SADD# 47 volcanic sediments 47 Paleozoic sedimentary 47 anomalous mineralization 47 Eskay Creek Silbak Premier 47 overthrust 47 copper sulphides 47 Upper Miocene 47 metavolcanic 47 supercontinents 47 loess 47 tyrannosaurids 47 Matoush fault 47 latite dike 47 vanadium mineralization 47 fault scarps 47 supergene enriched 47 dolomitic 47 magmatic kimberlite 47 westerly dipping 47 greenschist 47 fault breccia 47 basaltic flows 47 intrusive rocks 47 extensional 47 tuffs 47 Arctic tern 47 Dromomeron 47 chalcopyrite mineralization 47 Gondwanan 47 mineralizing 47 manto mineralization 47 Baptistina 47 orogenic gold deposits 47 stockwork zones 47 anomalous geochemistry 47 calderas 47 Vredefort 47 felsic volcanic 47 lavas 47 dolomites 47 long necked sauropod 47 sericite pyrite 47 outcrop exposures 47 Mistaken Point 47 andesitic volcanic 47 Castorocauda 47 carbonate rocks 47 Orogeny 47 pyroclastic 46 Ni Cu PGM mineralization 46 glacial retreat 46 carbonate sediments 46 siliceous breccia 46 brittle ductile 46 phyllite 46 clasts 46 Sauropods 46 lithospheric 46 quartz monzodiorite 46 alaskite 46 oceanic crust 46 Pleistocene 46 copper molybdenum mineralization 46 geophysical conductors 46 N#W [002] 46 stromatolites 46 Tharsis Rise 46 geological timescale 46 Lac Cinquante deposit 46 stalactite 46 sediments deposited 46 pyritized 46 Hadrosaur 46 ductile deformation 46 felsic 46 reservoir sandstones 46 oxygen isotope 46 compressional 46 terrestrial vertebrate 46 lateritic 46 Valles Marineris 46 vein breccia 46 epithermal deposits 46 Tibetan Plateau 46 Deccan Traps 46 igneous intrusive 46 karst limestone 46 silicate minerals 46 surficial 46 overlying sandstone 46 Great Oxidation Event 46 sericite altered 46 Pavonis Mons 46 Orcus Patera 46 Dry Valleys 46 subhorizontal 46 tumulus 46 Athabasca sandstone 46 alunite 46 gabbro intrusive 46 igneous rock 46 Greenland icecap 46 karst topography 46 ancient supercontinent 46 mafic volcanic 46 lunar crust 46 geological epoch 46 Tertiary volcanic rocks 46 dromaeosaurs 46 andesite 46 Silurian 46 Cryogenian period 46 PGM mineralization 46 Navajo sandstone 46 volcanic arcs 46 Larsen Ice Shelf 46 deformational 46 massive sulphide lenses 46 glacial boulder 46 silicified meta 46 Ontario Lacus 46 brachiopods 46 sedimentary formations 46 feldspar porphyritic 46 quartz feldspar porphyry intrusive 46 dolerite 46 supercontinent Pangaea 46 GJ#b 46 Acanthostega 46 talus 46 prospective stratigraphy 46 ocean basins 46 Oligocene reservoir 46 schists 46 landmasses 46 pelitic gneisses 46 volcaniclastic rocks 46 feldspar porphyry 46 Mesozoic Era 46 siliceous 46 Yellowstone Caldera 46 tuffaceous 46 metasediment 46 hornfels 46 biodiversity hotspot 46 subcrop 46 Jurassic formations 46 hydrothermal activity 46 magnetite skarn 46 Proterozoic age 46 Paleocene Eocene 46 Tertiary volcanic 46 sedimentary strata 46 Turonian 46 Roughrider East 46 coniferous forest 46 metamorphic 46 HIP #b 46 mafic ultramafic 46 Precambrian gneiss 46 Myr 46 halite 46 isotope ratios 46 eudialyte 46 massive sulphide mineralization 46 dromaeosaurid 46 olivine 46 illite 46 quartz diorite 46 basalt flows 46 Milnet Mine 46 stromatolite 46 stockwork mineralization 46 mafic dykes 46 geothermal gradient 46 sedimentological 46 radiometric anomaly 46 Tunguska Siberia 46 Yellowstone caldera 46 sulphide veins 46 abyssal plain 46 shallowly dipping 46 structurally deformed 46 Qinghai Tibetan plateau 46 gravity anomalies 46 porphyry intrusions 46 lithological 46 terrestrial vertebrates 46 Theropods 46 olivine crystals 46 Brigham Grette 46 magnetite alteration 46 nickel sulphide mineralization 46 magnetite gneiss 46 porphyry Cu Au 46 Yaxtché deposit 46 glaciated 46 eastern lowland gorilla 46 syenite porphyry 46 Carbonatite Complex 46 haematite 46 albitite 46 Bristlecone Pine 46 Miocene aged 45 porphyry intrusive 45 potassically altered 45 trilobites 45 limestones 45 dacite 45 granite greenstone 45 Proterozoic rocks 45 Zamora Batholith 45 rhyolitic 45 supervolcanoes 45 northeasterly trending 45 magnetic geophysical anomaly 45 geologic 45 electromagnetic anomalies 45 REE enriched 45 lowermost mantle 45 Heruga 45 diorite intrusion 45 oxygen isotope ratios 45 Zechstein 45 anamensis 45 golden toad 45 megafauna 45 Proterozoic aged 45 Brillouin zone 45 pillow lava 45 stratigraphically 45 Ithaca Chasma 45 Navajo Sandstone 45 ultramafic sill 45 Kerguelen Plateau 45 coprolite 45 calc alkaline 45 tephra 45 interglacials 45 biogeochemical 45 theropod 45 greywackes 45 mantle plumes 45 Geologically speaking 45 mantle convection 45 Ardipithecus ramidus 45 Ötzi 45 diorite intrusive 45 sedimentary layer 45 overlies 45 microbialites 45 deformation zone 45 megadroughts 45 Nili Fossae 45 mineralized shear 45 gossans 45 skarn deposits 45 talus slopes 45 clastic sediments 45 Birimian 45 interglacial periods 45 sulfur isotope 45 batholith 45 sauropod dinosaurs 45 BIFs 45 Paleozoic sedimentary rocks 45 juniper forests 45 crestal 45 Deccan eruptions 45 retreating glaciers 45 robustus 45 coccolithophores 45 felsic intrusion 45 granitic intrusives 45 Troodos Ophiolite Complex 45 Jakobshavn 45 Cretaceous limestone 45 sedimentary rock 45 megafloods 45 Saqqaq 45 diatreme 45 Nazca Plate 45 icecap 45 isotope composition 45 sulphide deposits 45 Archean 45 iron carbonate alteration 45 facies 45 basalt 45 meteoritic material 45 terminal moraine 45 skarn altered 45 carbonate minerals 45 Cretaceous sedimentary rocks 45 clastics 45 ophiolite 45 carbonaceous chondrite 45 mammoths roamed 45 geochemical signature 45 basalt rocks 45 NW trending 45 Paleozoic Era 45 hypogene 45 Jurassic limestone 45 caldera 45 Yukon Tanana 45 alkaline intrusive complex 45 jasperoid 45 faunal 45 surface geochemical anomalies 45 peridotite 45 exhalative 45 carbonatite dykes 45 RRZE 45 iceberg calving 45 Heterodontosaurus 45 ophiolitic 45 olivine rich 45 Karoo sediments 45 ultramafic rocks 45 hypoxic zone 45 massive sulphide deposit 45 tectonic plate movements 45 Main Lode 45 magnetic lineament 45 evolutionary lineages 45 lava tubes 45 Magembe property 45 interannual variability 45 herbivorous dinosaurs 45 supervolcano eruption 45 spinels 45 carbonatites 45 volcano sedimentary 45 sulphide bearing 45 collisional 45 Guanlong wucaii 45 nickel sulphides 45 kimberlite dykes 45 lunar meteorites 45 basaltic lava 45 Sorowar 45 alteration assemblages 45 mosasaurs 45 Triassic Period 45 argillites 45 Mio Pliocene 45 zircons 45 Proterozoic basement 45 mudstones 45 mafic volcanic rocks 45 lithic 45 Europasaurus 45 pyrite alteration 45 epithermal mineralization 45 Noachian era 45 lithology 45 cobalt mineralization 45 Paranthropus robustus 45 Deccan volcanism 45 ALH# 45 breccia zones 45 hydrothermal fluid 44 elevational 44 sericite alteration 44 Miocene Pliocene 44 mineral olivine 44 stratabound 44 Sinosauropteryx 44 tropopause 44 km3 44 lava flows 44 potassic altered 44 Tunguska meteorite 44 diatom 44 Tyrrell Shear Zone 44 ultramafic 44 Kirana Break 44 Laramidia 44 deep convective clouds 44 quartz monzonite intrusive 44 phyllic alteration 44 N#E 44 isotopic 44 volcanic tuffs 44 epithermal deposit 44 oceanic trenches 44 Miocene 44 Lower Oligocene 44 cryosphere 44 mafic 44 habilis 44 sedimentary rocks 44 anastomosing 44 Nankai Trough 44 steppe bison 44 palaeochannels 44 crustal plate 44 Upper Jurassic 44 Strathcona Fiord 44 propylitic altered 44 ectodermal 44 explosive volcanism 44 physiographic 44 chloritic 44 intrusives 44 long necked sauropods 44 J# +# [002] 44 molybdenite mineralization 44 Holocene epoch 44 Bedout 44 volcano Olympus Mons 44 Qinghai Tibet plateau 44 epithermal gold mineralization 44 volcanic craters 44 zircon crystals 44 Sheet WAIS 44 Tajo Vein System 44 mineralized dykes 44 calcrete 44 isostatic rebound 44 Gondwana supercontinent 44 hominid evolution 44 dolerite dyke 44 mesothermal 44 anticlinal structure 44 specularite 44 acid leached 44 epithermal veins 44 volcaniclastic 44 Anthony Barnosky 44 andesites 44 monzonite 44 Panderichthys 44 Indus civilization 44 Thelon Basin 44 domal 44 chromitite 44 gold anomalism 44 rifting 44 microfossils 44 hydrosphere 44 Noachian period 44 polar icecap 44 Spinosaurus 44 Stratospheric ozone 44 Deccan plateau 44 Destor Porcupine fault 44 airborne magnetic anomaly 44 geodynamic 44 Marmion Batholith 44 horned dinosaur 44 vertebrate fossils 44 lava tube 44 ecoregions 44 blanket bog 44 Miocene reservoir 44 limonitic 44 Hesperian epoch 44 uraniferous 44 dextral 44 Upper Bracemac 44 volcano lava dome 44 pyrrhotite mineralization 44 skarn alteration 44 duck billed hadrosaur 44 forams 44 Arctic permafrost 44 carbonaceous 44 Sturtian 44 subpolar 44 Porcupine Destor fault 44 Sarahsaurus 44 Ordovician Silurian 44 ancestral Puebloan 44 sengi 44 tectonically 44 itabirite 44 volcanic lava 44 Kilimanjaro glaciers 44 placental mammal