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Classification of volcanoes
ACTIVE AND INACTIVE
Highest point; apex
SUMMIT
According to PHIVOLCS, our country has more than a hundred volcanoes as of 2013._______ are active while the rest are inactive.
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It refers to mountain or hill, typically conical, having a crater or vent in which lava, rock fragments, hot vapor, and gas are or have been erupted from the earth's crust.
VOLCANO
steam-driven eruption as the hot rocks come in contact with water
PHREATIC OR HYDROTHERMAL ERUPTION
_____is lower outer part of the volcano.
BASE
TWO TYPES OF SUMMIT
CRATER AND CALDERA
eruption characterized by fountain lava
STROMBOLIAN ERUPTION
Molten rock that erupts from a volcano that solidifies as it cools.
LAVA
______is a region beneath the vent of a volcano where molten rock or magma is deposited or stored before eruption
Magma Chamber
NAME THE THREE EXTERNAL PARTS OF A VOLCANO
SUMMIT
SLOPE
BASE
Smallest type of volcano
CINDER CONE VOLCANO
These are those that have not erupted for the last 10, 000 years and their physical form is being changed by agents of weathering and erosion through formation of deep and long gullies.
INACTIVE
These volcanoes are those that have a record of eruption within the last 600 years or those that erupted 10, 000 years ago based on analyses of their materials.
Active volcanoes
_____are the sides or flanks of a volcano that radiate from the main or central vent.
Slopes
Form from many layers of “runny” lava.
SHIELD VOLCANO
excessively explosive type of eruption of gas and pyroclastic
PLINIAN
Fragments of lava or rock smaller than 2 mm in size that are blasted into the air by
volcanic explosions.
ASH
NAME THE FIVE TYPES OF VOLCANIC ERUPTION
PHREATIC OR HYDROTHERMAL
PHREATOMAGMATIC
STROMBOLIAN
VULCANIAN
PLINIAN
_____molten rock beneath the Earth’s surface.
Magma
Almost entirely of loose, grainy cinders and almost no lava
CINDER CONE
Any activity that includes the movement of magma towards or onto the surface is called_____.
VOLCANISM
BONUS QUESTION
WHAT IS MA'AM REA'S FULL NAME?
REA LUIZA D. AVENDAÑO
NAME THE THREE TYPES OF VOLCANO
SHIELD
CINDER CONE
COMPOSITE
A cloud of ash formed by volcanic explosions.
Ash Cloud -