A fissure vent, also known as a volcanic fissure or eruption fissure, is a linear
Dec 24, 2015
Oct 31, 2016
n. pl. vol·ca·noes or vol·ca·nos. 1. a. An opening in the earth's crust from which lava, ash, and hot gases flow or are ejected during an eruption. b. A similar ...
Generic Volcano Features A
Definition: steep, sub-volcanic tubes filled with fragments of both igneous rocks
and wall rocks.
Dec 2, 2010
Transcript. NARRATOR: Not too long ago, scientists studying the ocean made a fascinating discovery that has helped us better understand our planet Earth.
Nov 5, 2004