Basta Volcanoes Flashcards
A basin-like depression over a vent at the summit of the cone and also known as the mouth of the volcano
Crater
A volcano crater that is formed when a part of the wall of the crater collapses following an explosive eruption.
Caldera
Conveying liquid materials such as magma
Conduit
Gently sloping landform built by many layers of low viscous lava flows which cannot be filled up into sleep mounds.
Shield volcanoes
A volcano that has a steep conical hill formed above a vent that is composed mostly for basalt
Cinder cone volcano
*Constructed if alternating layers of pyroclastic materials and solidified lava flows.
*Also known as stratovolcanoes
Composite volcanoes
A stream-driven eruption as the hot rocks come in contact with water.
Phreatic/Hydrothermal
Excessively explosive type of eruption of gas and pyroclastics
Plinian
Outpourings of lava on to the ground
Effusive eruptions
Opening through which eruption takes place
Vent
High volcanic activity not located at any plato boundary
Hotspot
Dependent on the plates which form the top layer on the mantle
Formation by subduction
Currently active if it is erupting lava, releasing gas or generating seismic activity.
Active volcanoes
They’re not currently active, but maybe either dormant or extinct.
Inactive volcanoes
A period of weak to violent eruption characterized by fountain lava.
Strombolian
