Related by context. Frequent words. (Click for all words.) 56 volcanism 55 magma chamber 55 sedimentary basins 55 landmasses 55 lavas 54 geologically active 53 lithosphere 52 landmass 52 olivine 52 continental crust 52 volcanic eruptions 52 subduction zones 51 basalts 51 Younger Dryas 51 mass extinction 51 methane hydrate 51 Volcanic eruptions 51 mass extinctions 51 Earth crust 51 seismically active regions 50 glacial lakes 50 caldera 50 biodiversity hotspots 50 marine sediments 50 Tibetan Plateau 50 oceanic crust 50 volcanically active 50 volcanic crater 50 megafauna 50 crustal 50 subduction zone 49 volcanoes 49 magmatic 49 sedimentary basin 49 interglacial period 49 glacial melting 49 meteoroid 49 icecaps 49 graben 49 terrestrial ecosystems 49 active volcanos 48 active volcanoes 48 earth crust 48 hydrothermal 48 methane hydrates 48 ejecta 48 glacial melt 48 glaciers 48 gas hydrates 48 river deltas 48 Quaternary 48 greenhouse warming 47 sedimentary rock 47 ocean ridges 47 faultline 47 Gliese #g 47 basalt 47 meltwater 47 volcanic islands 47 tectonic plate 47 Geochemistry 46 Cascadia subduction zone 46 zircons 46 stalagmite 46 magnetar 46 lake sediments 46 Geophysical Research 46 mudstone 46 peridotite 46 silicates 46 basaltic 46 lava flows 46 moon Europa 46 sq kms 46 tectonic plates collide 46 calcite 46 University Lamont Doherty 46 glacial lake 46 supernova explosion 46 Paleocene 46 supernova remnant 46 microfossils 46 planet orbits 45 atmospheric circulation 45 calcareous 45 molten rock 45 hydrological cycle 45 Bose Einstein condensate 45 subtropical regions 45 thawing permafrost 45 plate tectonics 45 crater 45 volcanic eruption 45 craters 45 fossilized remains 45 landforms 45 glaciation 45 biosphere 45 Geologically 45 galaxy cluster 45 sedimentary