Related by context. Frequent words. (Click for all words.) 66 sediment cores 66 sediments 60 geochemistry 59 terrestrial ecosystems 58 geochemical 58 sedimentary 58 radiocarbon 57 landforms 56 sediment 56 radiocarbon dating 56 sedimentary rocks 55 outcrops 55 glaciation 54 basalts 54 geologic 54 isotopic 54 stalagmite 54 mineralogy 54 volcanic rocks 53 sediment samples 53 glaciers 53 soils 53 lichens 53 abundances 53 geological 53 iron oxides 52 nitrogen fixation 52 stratigraphy 52 fossils 52 lithologies 52 calcite 51 landform 51 glacial melt 51 volcanism 51 olivine 51 Geological mapping 51 stalagmites 51 carbonatite 51 carbonaceous 51 sedimentary rock 51 ultramafic rocks 51 journal Geology 51 igneous 51 magmatic 51 permafrost 50 geologically 50 radiometric anomalies 50 alluvium 50 limestones 50 tuffs 50 rock outcrops 50 airborne magnetic 50 Medieval Warm Period 50 paleontological 50 diatom 50 lithosphere 50 granites 50 Quaternary 50 paleo 49 apatite 49 hydrothermal alteration 49 crustal 49 outcrop 49 Ordovician 49 mid latitudes 49 gravels 49 Precambrian 49 Geochemistry 49 fluvial 49 peridotite 49 soil geochemistry 49 mountain glaciers 49 diamondiferous 49 chert 49 mudstone 49 magnetic anomalies 49 diatoms 49 geochemical anomalies 49 biota 49 intrusives 49 carbonate rocks 48 geology 48 interglacial 48 Eocene 48 radiometric 48 Geochemical 48 Tibetan Plateau 48 airborne geophysical 48 facies 48 geochemical surveys 48 glacial ice 48 Late Cretaceous 48 hydrological cycle 48 Geologically 48 Carboniferous 48 lithology 48 auriferous 48 decadal 48 geologic mapping 48 mineral occurrences 48 sulphides