Related by context. Frequent words. (Click for all words.) 64 lithosphere 64 earth crust 63 continental crust 62 oceanic crust 62 crustal 60 subduction zones 60 Earth crust 59 tectonic plate 59 landmasses 59 subduction zone 58 subduction 57 ocean ridges 56 tectonics 56 magmas 54 igneous rocks 54 tectonic plates collide 54 Cascadia subduction zone 54 magma chamber 54 lavas 54 tectonic 53 planetesimals 53 mud volcanoes 53 basalts 53 upwellings 52 clasts 52 tectonic plates 52 polar vortex 52 volcanic vents 52 plate tectonics 51 basaltic 51 magmatic 51 pyroclastic 51 magma 51 Tibetan Plateau 51 thawing permafrost 51 escarpments 51 deformation 51 hydrothermal activity 51 ridging 51 glaciers melt 51 sedimentary rock 50 pyroclastic flow 50 steam vents 50 graben 50 temperature gradient 50 Volcanic eruptions 50 basalt 50 outer crust 50 volcanic 50 Valles Marineris 50 icecaps 50 Anatolian fault 50 torus 50 explosive eruptions 49 volcanic islands 49 calcareous 49 lava tubes 49 hydrothermally altered 49 Mineralization occurs 49 syncline 49 tuffs 49 poleward 49 carbonate rocks 49 convective 49 molten rock 49 volcanoes 49 seismic waves 49 meteoroids 49 sedimentary basins 48 crust 48 lava flows 48 Ross Ice Shelf 48 igneous rock 48 sedimentary 48 mafic volcanics 48 andesite 48 schists 48 vertically stacked 48 breccia zones 48 limestones 48 volcanism 48 Earth magnetosphere 48 shallower depths 48 Pacific Ocean 48 volcanics 48 igneous 48 equatorial Pacific Ocean 48 circular orbits 48 Weddell Sea 48 Olympus Mons 48 river deltas 47 marine sediments 47 sedimentary basin 47 jasperoid 47 Cascadia Subduction Zone 47 subtropics 47 ejecta 47 hydrothermal vent 47 Antarctic Ice 47 southwestward 47 ocean currents