Related by context. Frequent words. (Click for all words.) 64 lavas 63 mud volcanoes 63 Volcanic eruptions 63 volcanic eruptions 62 lithosphere 62 volcanism 61 marine sediments 61 volcanic 61 igneous rocks 61 magmas 60 biogeochemical 59 supercontinent 59 crustal 59 basalts 59 lava flows 59 hydrothermal vent 59 magmatic 58 basaltic 58 landmasses 58 volcanoes 58 continental crust 58 basalt 58 magma chamber 58 explosive eruptions 57 lava tubes 57 escarpments 57 Valles Marineris 57 landforms 57 oceanic crust 57 hydrothermal activity 56 igneous rock 56 subduction zones 56 ocean ridges 56 Younger Dryas 56 Tibetan Plateau 55 ejecta 55 caldera 55 spherules 55 lahars 55 terrestrial ecosystems 55 Earth crust 55 Antarctic Ice 55 Snowball Earth 55 Chicxulub 55 polar vortex 55 volcanic islands 55 mudstone 55 tectonics 55 olivine 55 volcanic activity 55 planetary nebulae 54 stromatolites 54 geomorphology 54 volcanically active 54 volcanic vents 54 volcanic eruption 54 eruptions 54 planktonic 54 landform 54 steam vents 54 pyroclastic flow 54 icy crust 54 plate tectonics 53 meteoroids 53 Greenland Ice 53 tectonic 53 icecaps 53 volcano eruptions 53 graben 53 glaciation 53 calcite 53 Sediments 53 earth crust 53 Weddell Sea 53 aerosol particles 53 permafrost 53 sedimentary rock 53 cryosphere 53 tuffs 53 Oort Cloud 53 continental drift 53 volcanic gases 53 Kuiper belt 52 cirrus clouds 52 subduction 52 icecap 52 seamount 52 temperate forests 52 thawing permafrost 52 poleward 52 Polar Regions 52 Quaternary 52 mid latitudes 52 volcanic crater 52 Arctic permafrost 52 singularities 52 sediments 52 hydrological cycle 52 Antarctic ice 52 Melting glaciers 52 lake sediments