Related by context. Frequent words. (Click for all words.) 45 volcanic plume 44 basaltic 44 Polar Regions 43 equatorial 43 Volcano erupts 42 volcanic activity 42 aerosol particles 41 marine sediments 41 Weddell Sea 40 equatorial regions 40 longitudes 40 Nazca 40 volcanoes 40 Antartica 40 lavas 39 cirrus clouds 39 Comet McNaught 39 meteoroids 39 Equatorial 39 pyroclastic flow 38 Eyjafjallajökull 38 Volcanic 38 ITCZ 38 Antarctica 38 ejecta 38 volcanic 38 Equator 37 Ross Ice Shelf 37 seamount 37 Great Rift Valley 37 basalt 37 lava flows 37 Mount Etna 37 volcano 37 Sunda Strait 36 northernmost tip 36 active volcanos 36 equator 36 active volcanoes 36 Saturn moon Enceladus 36 volcanology 36 Kilauea Volcano 36 volcanic ash clouds 36 explosive eruptions 36 Volcanic Ash 36 volcano erupting 36 Mount Sinabung 36 volcanic ash 36 Eyjafjallajokull 36 Grimsvotn 36 crater 36 Mount Pinatubo 35 cosmic rays 35 water vapor 35 interstellar dust 35 Antarctic 35 volcanic gases 35 Anatahan 35 cosmic radiation 35 aerosols 35 glacier 35 Pemba 35 volcanic rock 35 Antarctic peninsula 34 Kelud 34 Sedna 34 lava flow 34 Fjord 34 pyroclastic flows 33 volcanic eruption 33 Expedition 33 volcanic eruptions 33 Lake Turkana 33 volcano erupts 33 northerly 33 Iceland volcano 33 Drake Passage 33 Sahara Desert 33 sedimentary rock 33 volcano eruption 32 Sulfur dioxide 32 Volcanic eruptions 32 latitudes 32 Scorpius 32 -# ° C. [001] 32 Iceland Eyjafjallajokull volcano 32 highlands 32 west coast 32 volcano erupted 32 plume 32 volcanos 32 Volcanologists 32 ashfall 32 Tungurahua 32 anticyclone 32 molten rock 32 temperature inversion 31 Eurocontrol 31 Iceland Eyjafjallajokul volcano 31 Pacific Decadal Oscillation 31 Mount Redoubt