Related by context. All words. (Click for frequent words.) 76 Eocene 75 Cretaceous 73 Miocene 71 Triassic 71 Paleocene 69 Middle Miocene 69 Oligocene 69 Carboniferous 68 Ordovician 67 Pleistocene 67 Late Cretaceous 65 interglacial 64 Paleozoic 63 Jurassic 63 Cenozoic 63 Neoproterozoic 63 Palaeozoic 63 Cenomanian 63 Eemian 62 Proterozoic 62 Neogene 62 Late Jurassic 62 Mesozoic 62 interglacial periods 62 Noachian 62 Paleogene 61 Eocene epoch 61 Late Ordovician 61 Middle Pleistocene 61 Upper Paleolithic 61 cretaceous 61 Early Cretaceous 61 Middle Eocene 61 Cretaceous Period 61 mid Pliocene 61 Plio Pleistocene 60 Aptian 60 Late Devonian 60 Upper Jurassic 60 Precambrian 60 Devonian 60 Younger Dryas 60 kyr 60 Late Triassic 60 interglacial period 60 Jurassic Period 60 Lower Cretaceous 59 Paleozoic Era 59 depositional 59 Late Miocene 59 deglaciation 59 Quaternary 59 glaciations 59 Devonian Period 59 Tertiary Period 59 Holocene 59 Ediacaran 58 Maastrichtian 58 Silurian 58 Cambrian Period 58 Cenozoic Era 57 Cretaceous Jurassic 57 Last Glacial Maximum 57 interglacials 57 Cretaceous periods 57 Pleistocene epoch 57 Pliocene epoch 57 Miocene Epoch 57 Pleistocene Epoch 57 Triassic Period 57 sedimentary deposits 57 Archaean 57 Upper Cretaceous 56 Snowball Earth 56 Eocene Epoch 56 Upper Palaeolithic 56 Middle Paleolithic 56 Permo Triassic 56 Paleocene Eocene Thermal Maximum 56 carboniferous 56 Mesozoic era 56 Phanerozoic 56 Mesolithic 56 Triassic Jurassic 55 Palaeocene Eocene Thermal Maximum 55 Turonian 55 Miocene epoch 55 Permian Triassic 55 Upper Miocene 55 faunas 55 Palaeolithic 55 Ice Ages 55 Late Paleozoic 55 benthic foraminifera 55 Permian Period 55 marine sediments 54 sedimentary layers 54 lavas 54 Rotliegend 54 basalts 54 Middle Jurassic 54 glaciation 54 Eocene Oligocene 54 Neoproterozoic era 54 Jurassic Triassic 54 Hadean 54 radiocarbon 54 KT boundary 54 paleoclimate 54 brachiopods 53 Campanian 53 paleomagnetic 53 Triassic formations 53 geologically 53 Palaeocene 53 planktonic foraminifera 53 stromatolites 53 paleo 53 Paleocene Eocene 53 Permian extinction 53 Medieval Warm Period 53 Miocene sands 53 Late Cretaceous Period 53 geologic 53 glacial interglacial 53 Lower Jurassic 53 Ediacaran Period 53 volcanism 53 Little Ice Age 53 Cambrian Ordovician 53 Pleistocene era 53 sediments 53 Cretaceous Tertiary boundary 53 dolomites 53 Middle Devonian 53 depositional environment 53 magmatism 52 Messinian 52 erosional 52 Panderichthys 52 Cryogenian 52 Interglacial 52 lobe finned fish 52 Jurassic sandstone 52 basinal 52 ° C warmer 52 Late Pleistocene 52 Quaternary Period 52 paleoenvironmental 52 Mg Ca 52 Climatic Optimum 52 Paleoproterozoic 52 GtC 52 atmospheric CO 52 Dry Valleys 52 H. habilis 52 Great Oxidation Event 52 Wolfcamp formations 52 sediments deposited 52 igneous rocks 52 Upper Triassic 51 mineralized intrusive 51 Upper Devonian 51 andesitic rocks 51 Zechstein 51 carbon isotopes 51 crestal 51 turbidite 51 Cenozoic era 51 Miocene Pliocene 51 stratigraphically 51 Jurassic formations 51 geological epoch 51 multi decadal 51 Early Archaic 51 layered ultramafic 51 Caballos Formation 51 Carboniferous Period 51 chlorophyll concentrations 51 forams 51 gravity anomalies 51 speleothems 51 silicic 51 glacial cycles 51 Cambrian explosion 51 oxygen isotope 51 megadroughts 51 Lower Miocene 51 atmospheric CO2 concentration 51 sedimentary rocks 50 phyllosilicate 50 Noachian era 50 sedimentological 50 shallower Cretaceous 50 Triassic reservoirs 50 australopithecines 50 Merensky Reef 50 Heterodontosaurus 50 Hesperian epoch 50 Miocene aged 50 salinities 50 Mesozoic Era 50 atmospheric methane 50 hydrothermal activity 50 Archaic Period 50 habilis 50 facies 50 stratigraphic 50 graben 50 foraminifera 50 Jurassic Cretaceous 50 volcaniclastic rocks 50 Santonian 50 Archean 50 Neocomian 50 granitoids 50 paleochannel 50 Australopithecus 50 Paleozoic era 50 sediment cores 50 geochronology 50 Holocene epoch 50 palaeoclimate 50 subglacial 50 ornithischians 50 Liang Bua 50 biogeochemical 50 Oligocene epoch 50 magmatic 49 supercontinent 49 stratigraphic sequence 49 Irvingtonian period 49 mass extinctions 49 Upper Carboniferous 49 cratons 49 basaltic rocks 49 Cretaceous Paleogene 49 humans Homo sapiens 49 mesothermal 49 Miocene reservoir 49 Roman Warm Period 49 magmas 49 Gacheta 49 hydrothermal vent 49 Paleoindian 49 Sr Ca 49 Acanthostega 49 radiocarbon dating 49 unconformably overlain 49 Athabasca sandstone 49 Ardipithecus ramidus 49 Pleistocene Ice Age 49 Mio Pliocene 49 stromatolite 49 hominins 49 peridotites 49 Endrod 49 sandstones 49 abundances 49 Amundsen Sea 49 upwellings 49 Palaeozoic sedimentary 49 mya 49 dinosaurs roamed 49 megafauna 49 shallow depths 49 Aurignacian 49 continental crust 49 reionization 49 paleoclimatic 49 interannual variability 49 Toba eruption 49 felsic dike 49 vertebrate fossils 49 thermocline 49 radiocarbon dates 48 metamorphism 48 refugia 48 Jurassic reservoirs 48 Stegodon 48 palaeo 48 ignimbrites 48 Paleolithic 48 diatom species 48 isotopic 48 carbon isotope ratios 48 grabens 48 microfossils 48 ramidus 48 vertebrate evolution 48 atmospheric CO2 48 Gneiss 48 Medieval Warming 48 Cretaceous Tertiary 48 radiometric dating 48 Paranthropus robustus 48 Neandertals 48 Cretaceous Paleogene boundary 48 Burgess Shale 48 ostracods 48 Rotliegend sandstone 48 surficial 48 Southern Oscillation 48 Upper Oligocene 48 orogenic 48 biogeographical 48 volcanogenic 48 Gyro sands 48 oceanic crust 48 Appy Sluijs 48 crinoids 48 Yegua sands 48 Archaeopteryx 48 biogeographic 48 Au Cu mineralization 48 surface geochemistry 48 El Niño Southern Oscillation 48 seafloor sediments 48 dromaeosaurs 48 latitudes 48 Paleo Indian 48 hominid fossil 48 clathrates 48 hominin 48 glacial interglacial cycles 48 ocean sediment cores 48 granodiorite porphyry 48 mammoths 48 leached capping 48 Cretaceous sandstones 48 hominid fossils 48 Cretaceous carbonate 48 stockwork veining 48 Sarahsaurus 48 Lower Tertiary 48 fossils 48 isotopic composition 48 degrees Fahrenheit warmer 48 limestones 48 hydrothermal 48 vein breccia 48 placental mammal 48 volcaniclastics 48 Cambrian Explosion 48 Paleolithic Era 48 siliciclastic 48 sedimentary strata 48 sedimentary 48 strontium isotope 48 tectonically 48 isotope ratios 48 foreland 48 glaciers retreated 48 Homo heidelbergensis 48 porosities 48 reservoir sands 48 epithermal deposit 48 hominids 48 Ordovician Silurian 48 Anthropocene 48 SSTs 48 Cretaceous extinction 48 coastal upwelling 48 multicellular creatures 48 geological strata 48 ocean ridges 48 Myr 47 geological formations 47 stratigraphic trap 47 Jurassic reservoir 47 Early Cretaceous Period 47 #.#C above 47 diorites 47 lava tubes 47 coccolithophores 47 Marge Vein 47 pinnacle reef 47 Neandertal 47 sandstone reservoirs 47 terrestrial vertebrates 47 tropospheric temperature 47 mantle plumes 47 zircons 47 Palaeozoic era 47 carbonate sediments 47 brittle deformation 47 marine reptiles 47 anamensis 47 reservoir sandstones 47 prehistoric 47 angiosperm 47 massive sulphide deposit 47 basaltic 47 atmospheric carbon dioxide 47 Permo Carboniferous 47 megadrought 47 Proterozoic aged 47 sauropodomorphs 47 Lake Yoa 47 Carbonera C 47 Southwest Oyu 47 mid latitudes 47 Karoo Supergroup 47 Triassic formation 47 ophiolite 47 primitive organisms 47 Main Lode 47 Lower Pliocene 47 Neolithic 47 Miocene reservoirs 47 crustal 47 gabbro dyke 47 craton 47 subsurface geology 47 evaporite 47 Early Bronze Age 47 WNW trending 47 lithosphere 47 anticlines 47 surface temperatures SSTs 47 bird Archaeopteryx 47 abyssal plain 47 C4 grasses 47 Nili Fossae 47 Current Warm Period 47 Noachian period 47 sedimentary rock 47 Confuciusornis 47 mammal fossils 47 andesitic volcanics 47 tropical troposphere 47 Neolithic Age 47 exhalite 47 H. erectus 47 trilobites 47 Lake Vostok 47 plutonic rocks 47 tropopause 47 hydrocarbon reservoirs 47 Glauconitic 47 magnetite bearing 47 sulfidic 47 taxa 47 clastic 47 Ice Age 47 Puijila 47 sedimentary sequences 47 pyritized 47 lunar crust 47 igneous rock 47 Villeta T 47 isotope composition 47 gold anomalism 47 Miogyp 47 tetrapod 47 Gondwanaland 47 Doushantuo Formation 47 hypoxic zone 47 oxygen isotope ratios 47 placental mammals 47 carbon dioxide concentrations 47 spatial variability 47 CO2 concentrations 47 hominid species 47 ancient supercontinent 47 copper skarn 47 Gran Dolina 47 lowermost mantle 47 Radiocarbon 47 phreatic 47 gabbros 47 amphibolite facies 47 polar vortex 47 solar nebula 47 deformational 47 Homo antecessor 47 preindustrial 47 Gigantopithecus 46 iridium layer 46 flood basalts 46 granodiorites 46 geothermal gradient 46 abyssal plains 46 Paleozoic carbonate 46 Iguanodon 46 syn rift 46 earliest hominid 46 sub Athabasca unconformity 46 subparallel 46 alteration assemblages 46 Permian Triassic boundary 46 carbonate reservoirs 46 allelic variation 46 hydrothermal breccia 46 felsic intrusions 46 structural lineaments 46 Sedimentary rocks 46 martian meteorites 46 oxygen isotopes 46 ferruginous 46 stratigraphy 46 Siberian Traps 46 anoxic 46 andesitic volcanic rocks 46 Homo sapiens evolved 46 terrestrial biosphere 46 lake sediments 46 Sulphide mineralization 46 bulk mineable deposit 46 lithology 46 Pleistocene Age 46 olivine rich 46 silicified zone 46 anorthosite 46 Antarctic Dry Valleys 46 tungsten mineralization 46 diatoms 46 metazoans 46 Laptev Sea 46 surface geochemical anomalies 46 bison lumbered 46 #.#oC [001] 46 anomalously warm 46 Junnagunna 46 sulphidic 46 northern latitudes 46 geochemically 46 H. sapiens 46 Lower Goru 46 Dromomeron 46 bony fishes 46 basal sandstone 46 andesitic 46 phylogeographic 46 felsic dykes 46 Jurassic limestone 46 PETM 46 mafic ultramafic intrusion 46 Indian Ocean Dipole 46 fossil 46 Mesoproterozoic 46 warm interglacial 46 quartz feldspar porphyries 46 equatorial Pacific Ocean 46 porphyry mineralization 46 lobe finned fishes 46 areal extent 46 yr -1 46 mantle convection 46 genus Homo 46 seabed sediments 46 prehistory 46 extensional 46 Paleolithic Age 46 vuggy quartz 46 biogeochemical processes 46 uphole 46 ichthyosaurs 46 SST anomalies 46 chondrules 46 hydrothermal alteration 46 paleoecology 46 claystone 46 epithermal gold mineralization 46 Cretaceous reservoirs 46 greenschist 46 sedimentary formations 46 Arabia Terra 46 subglacial lakes 46 felsic rocks 46 glaciers receded 46 epithermal vein systems 46 temperate latitudes 46 kimberlite breccia 46 clastic rocks 46 climatic variability 46 diorite intrusive 46 theropods 46 Dikika 46 Sturtian 46 paleochannels 46 Chicxulub impact 46 subseafloor 46 oligotrophic 46 haematite 46 porphyry copper molybdenum mineralization 46 polymictic conglomerate 46 geochemists 46 sedimentary basin 46 decadal 46 fluvial 46 granitoid rocks 46 bryozoans 46 saprolitic 46 glaciological 46 teleconnections 46 advanced argillic alteration 46 sandstone horizons 46 Late Heavy Bombardment 46 subsurface ocean 46 solar irradiance 46 dinosaur precursors 46 detrital 46 Acheulian 46 pillow basalts 46 #,#-#,# ft. 46 pelitic gneiss 46 sandstone intervals 45 Cu Au mineralization 45 pelitic 45 radiometric anomaly 45 phyllic alteration 45 sulphidation 45 Homo erectus 45 Basal Conglomerate 45 Pre Cambrian 45 atmospheric CO2 levels 45 Middle Palaeolithic 45 duck billed hadrosaur 45 Paleoclimate 45 BIFs 45 stockwork zone 45 intrusive rocks 45 Alaskite 45 tectonic plate movements 45 lithological units 45 Mousterian 45 dacitic 45 geochemically anomalous 45 Frio sand 45 subhorizontal 45 ppbv 45 Ordovician extinction 45 sandstone reservoir 45 komatiite 45 Preclassic 45 Medieval Warm 45 hydrosphere 45 δ 45 unconformity 45 epithermal quartz veins 45 Equatorial Pacific 45 clastic sediments 45 gabbro dykes 45 mineralizing 45 relict 45 spatial scales 45 matrix porosity 45 Birkhead Formation 45 vein stockwork 45 glacial retreat 45 silty limestone 45 alaskite 45 updip 45 calcic 45 crustal thickness 45 massive sulfide mineralization 45 Skarn 45 Cretaceous formations 45 halite 45 diorite porphyry 45 Jakobshavn Isbrae 45 warmings 45 biogenic 45 Cryogenian period 45 magma chambers 45 Upper Bracemac 45 Pyrrhotite 45 Middle Awash 45 dolomitic 45 microbialites 45 coprolites 45 primate evolution 45 grade bulk mineable 45 Jurassic sandstones 45 volcanics 45 crinoid 45 Miocene interval 45 oceanic lithosphere 45 hornblende 45 Bedout 45 oil bearing sandstones 45 greisen 45 resistivity anomalies 45 upper tropospheric 45 multicellular animals 45 carbonaceous shales 45 magnetic susceptibility 45 magma ocean 45 overlies 45 geochemical 45 McMurdo Dry Valleys 45 faunal 45 Medieval Warming Period 45 PancakeCroc 45 El Nino Southern Oscillation 45 warm interglacial periods 45 orogenic gold deposits 45 Fram Strait 45 Homo species 45 hominid 45 stepout drilling 45 Tiktaalik 45 Iron Formation 45 colluvial 45 clastics 45 Transantarctic Mountains 45 diatom 45 Ross Ice Shelf 45 diabase dike 45 quartz adularia 45 advanced argillic 45 shales 45 lunar meteorites 45 atmospheric circulation 45 ecoregions 45 amphipods 45 Volcanogenic Massive Sulphide VMS 45 glaciated 45 Klaza Zone 45 Ediacara 45 anatomically modern 45 tetrapods evolved 45 Gongondy 45 quartz alunite 45 skarn mineralization 45 isotope fractionation 45 massive sulphide deposits 45 Pacific Decadal Oscillation 45 sulphide veins 45 ENSO cycle 45 downwelling 45 komatiitic 45 geologic formations 45 Gawis 45 Butmah 45 altitudinal 45 epithermal mineralization 45 boreal regions 45 rhyolites 45 granodiorite intrusive 45 thermally mature 45 El Ninos 45 hominin species 45 horst 45 volcano sedimentary sequences 45 greenstones 45 Oligocene reservoir 45 A. ramidus 45 homo erectus 45 bonebed 45 altered felsic 45 tuffaceous rocks 45 Saqqaq 45 Canadon Seco 45 radar altimetry 45 Proterozoic rocks 45 lacustrine 45 Ichthyostega 45 glaciers melted 45 cosmic ray flux 45 ignimbrite 45 mudstones 45 Veta Madre 45 chalcopyrite mineralization 45 tonalite 45 granite gneiss 45 mineralized lenses 45 equatorial latitudes 45 Sarmatian 45 potassic altered 45 El Domo 45 carbonate rocks 45 El Niños 45 ° #'N 45 metamorphic rocks 45 Columbian mammoth 45 megalodon 45 ENE trending 45 tuffs 45 volcanic caldera 45 baleen whales 45 Gobero 45 Mannville Swan River 45 extrusive 45 Pleistocene Era 45 Australopithecus anamensis 44 anthropoid primates 44 braincase 44 conductive zones 44 gabbroic 44 dinosaurs 44 magnetite BIF 44 loess 44 isotherm 44 Diabase 44 massive sulphide horizon 44 dwarf hippos 44 IP chargeability 44 anomalously 44 fine grained sandstone 44 cherts 44 manto mineralization 44 PGM mineralization 44 glacial fjord 44 ALH# 44 disseminated sulphide mineralization 44 carbonate reef 44 Karoo sediments 44 Plesiosaurs 44 planktonic 44 Mirzaani Field 44 previously undrilled 44 cyclicity 44 mass extinction 44 troposphere 44 epithermal 44 SNe Ia 44 Proterozoic basement 44 Unconformity 44 granitoid 44 Lower Proterozoic 44 permafrost degradation 44 hornfels 44 ocean eddies 44 intensely oxidized 44 El Niño La Niña 44 Zamora Batholith 44 Patchawarra 44 cryovolcanism 44 mud volcanoes 44 Syrtis Major 44 mineralized mafic 44 Laurasia 44 Yenac 44 unconformity uranium 44 post perovskite 44 midlatitudes 44 unconformity type 44 Albian 44 Kipawa Deposit 44 komatiites 44 rhyolite domes 44 glacial geology 44 turbidites 44 subtidal 44 sericite pyrite 44 Sandstones 44 Paleozoic sediments 44 epithermal veins 44 Ventastega 44 VTEM conductor 44 Wolfcamp 44 anthropogenic greenhouse gas 44 undersea volcanoes 44 sulphide mineralized 44 La Nià ± 44 seismicity 44 alluvial workings 44 geological 44 SLD# 44 magnetic anomalies 44 chondrites 44 Navajo sandstone 44 mafic intrusion 44 archosaurs 44 Homo ergaster 44 benthos 44 #.#C #.#F [003] 44 hydrological cycle 44 Lower Acacus Formation 44 Gippsland Basin 44 caldera 44 heavily cratered 44 intermediate volcanic rocks 44 volcanoclastic 44 massive sulphide mineralization 44 low sulphidation 44 ENSO neutral conditions 44 geologies 44 Navajo Sandstone 44 IP geophysical anomaly 44 pillow lavas 44 vuggy silica 44 quartzites 44 massive sulfide 44 structural stratigraphic 44 subsurface 44 Lake Untersee 44 Weddell Sea 44 sunspot cycles 44 sauropods 44 Gakkel Ridge 44 carbonate reservoir 44 Castorocauda 44 Caballos 44 olivines 44 hydrocarbon accumulations 44 Zalasiewicz 44 northerly trending 44 felsic tuff 44 interannual 44 Nankai Trough 44 tetrapods 44 Palaeo 44 porosity permeability 44 volcano sedimentary sequence 44 mineralising 44 Hallnor 44 granitic intrusions 44 electromagnetic anomaly 44 isotopic compositions 44 sulfur isotope 44 carbonate minerals 44 Chicxulub crater 44 Australopithecus afarensis 44 orbital eccentricity 44 Chalcolithic 44 Heruga 44 Cretaceous reservoir 44 conodonts 44 Inca civilization 44 Tawa hallae 44 hunter gatherers 44 thermal gradients 44 atmospheric concentrations 44 ultramafic intrusives 44 volcanic ridges 44 eluvial 44 Paleozoic sedimentary 44 Igunda 44 crurotarsans 44 variably silicified 44 andesite flows 44 breccia zone 44 southern latitudes 44 calcrete 44 phyllosilicates 44 sea hydrothermal vents 44 spodumene bearing 44 potassically altered 44 silica alteration 44 silicified breccias 44 Sidi Salim 44 faulted anticline 44 Rotliegendes 44 placentals 44 magnetite mineralization 44 Sumatra Andaman earthquake 44 Geochemistry 44 granitic rocks 44 atmospheric CO2 concentrations 44 Zam Zam Shenkman 44 goethite 44 horst block 44 #.#C warmer 44 thermal gradient 44 glacial till 44 Jevrejeva 44 batholith 44 Djambaye II 44 zircon crystals 44 Ultramafic 44 Permian 44 Paranthropus 44 Chert 44 coeval 44 Birimian 44 Ellenburger 44 undrilled 44 substorm 44 gabbroic rocks 44 sulfur isotopes 44 satellite altimetry 44 Osedax 44 Proterozoic age 44 sedimentary basins 44 Cretaceous sedimentary rocks 44 quartz vein stockwork 44 Cuddie Springs 44 Syenite 44 hydrothermally 43 mineralized skarn 43 radiocarbon dated 43 Ontario Lacus 43 hydrocarbon saturation 43 hydrothermal fluid 43 CAIs 43 mosasaurs 43 geoid 43 carbonate veins 43 embayment 43 pyroxenites 43 archeopteryx 43 hydrocarbon saturations 43 deep convective clouds 43 airglow 43 Mineralised Zone 43 peridotite