volcanism Definition

plate tectonics, glaciation, crustal, hydrothermal, lithosphere, subduction, seismicity, deglaciation, rifting, continental drift, ejecta, igneous, caldera, pyroclastic, upwelling, sedimentary, cenozoic, metamorphism, neogene, depositional, stratovolcano, holocene, sedimentary rock, igneous rock, lavas, magmas, volcanist, vulcanist, tectonic, volcanoes, basalts, hydrosphere, volcanicity, landforms, olivine, paleogene, glaciers, supercontinent, precambrian, volcanity, sediments, auroral, ordovician, syrtis major, megafauna, el nino southern oscillation, phanerozoic, noachian, faunas, planetesimal, chondrules, hydrologic cycle, compressional, mineralizing, jarosite, enceladus, permafrost, eruptions, chondrites, supernovae, tropopause, quaternary period, amundsen sea, volcanize, quasar, silicates, sunspots, orogenic, deformation, poleward, geochronology, iapetus, meltwater, plutonist, storminess, photosphere, gondwanaland, mesozoic, archaean, scarps, landmasses, metamorphic rock, magnetosphere, hadean, water vapor, eocene, graben, palaeo, convection, subducting, comets, interglacial, asthenosphere, loess, albedo, biogeochemical, neutron star, craton, spherules, exosphere,