Plinian fall

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• plinian eruption — ALASKA VOLCANO OBSERVATORY GLOSSARY An explosive eruption in which a steady, turbulent stream of fragmented magma and magmatic gases is released at a high velocity from a vent. Large volumes of tephra and tall eruption columns are characteristic …   Glossary of volcanic terms

• Phreatomagmatic eruption — Phreatomagmatic eruptions are defined as juvenile forming eruptions as a result of interaction between water and magma. They are different from magmatic and phreatic eruptions. The products of phreatomagmatic eruptions contain juvenile clasts,… …   Wikipedia

• Pyroclastic shield — In volcanology, a pyroclastic shield or terrestrial ignimbrite shield is an uncommon type of shield volcano. Unlike most shield volcanoes, pyroclastic shields are formed mostly of pyroclastic and highly explosive eruptions rather than relatively… …   Wikipedia

• Mount Vesuvius — This article is about the mountain/volcano in Italy. For other uses, see Vesuvius (disambiguation). Mount Vesuvius Monte Vesuvio …   Wikipedia

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• Types of volcanic eruptions — In this article types of eruption will be used to refer to the mechanism causing the eruption. The style of eruption will be used to describe subcategories of eruption, which have the same eruptive mechanism. For example strombolian and vulcanian …   Wikipedia

• volcano — /vol kay noh/, n., pl. volcanoes, volcanos. 1. a vent in the earth s crust through which lava, steam, ashes, etc., are expelled, either continuously or at irregular intervals. 2. a mountain or hill, usually having a cuplike crater at the summit,… …   Universalium

• Hatepe eruption — The Hatepe eruption (named for the Hatepe Plinian pumice fall deposit [cite journal |last=Talbot |first=J. P. |authorlink= |coauthors=Self, S.; Wilson, C. J. N. |year=1994 |month= |title=Dilute gravity current and rain flushed ash deposits in the …   Wikipedia

• Newberry Volcano — Paulina Peak Newberry Caldera, with Paulina Lake, East Lake, and Big Obsidian Flow Elevation …   Wikipedia

• Nevado del Ruiz — La Mesa de Herveo Steam on the mountain in July 2007 Elevation …   Wikipedia

• Volcanism on Mars — Mariner 9 image of Olympus Mons[1]. This is one of the first images to show that Mars has large volcanoes. Volcanic activity, or volcanism, has played a significant role in the geologic evolution of Mars.[ …   Wikipedia