science- volcanoes

45問 • 1年前

Arriana Alvarez

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an opening, gap or crack on earth’s surface

volcano

recently erupted within 10,000 years

active volcano

has not erupted in long time but there is a possibility that it can erupt in the future

dormant volcano

has not erupted thousands of years ago and there is no possibility of eruption

extinct volcano

molten rock beneath the earth’s surface

magma

small cone shaped volcano

parasitic cone

a flat piece of rock formed when magma hardens

sill

an opening in an earth’s surface through volcanic materials escape

vent

side of a volcano

flank

molten rock that erupts form a volcano and solidifies as it cools

lava

mouth of a volcano

crater

underground passage magma travel through

conduit

highest point of a volcano

summit

entrance of a volcano

throat

fragments of lava rocks that are blasted into the air

ash

a cloud of ash

ash cloud

are chunks of lava blasted into the air

volcanic bombs

fast moving current of hot gases and rock

pyroclastic flows

fragments material that consists of pumice,scoria,lithic

tephra fall

also known as mud flows

lahar

occurs when magma is expelled from a volcanic vent

volcanic eruptions

lava violently explodes out of a vent

explosive

lava quiently and steadily flow out of a volcano

non explosive

lava is thrown into the air in jets

hawaiian eruption

smallest type is explositions which consists of intermittent

strombolian

violent type of eruption which accompanied by violent gun shots

vulcanian

largest and most violent type

plainian

hydromagmatic eruption where lava interact explosively with water

surtseyan

formed from a nonexplosive eruption of lava

sheild

also known as composite volcano

stratovolcano

simplest type of volcano

cinder

build by slow eruption of high viscous lava

lava dome

thick and mostly flattened layer of cooled lava

lava plateau

large bowl shaped depression

caldera

are described to produced the largest eruptions

supervolcanoes

created when magma erupts in underwater

submarine

red hot with a very high temperature

lava flows

contains larger amount of gases and are faster that pyroclastic flows

pyroclastic surges

solid materials that are thrown out during volcanic eruption

tephra falls

carbon dioxide, sulfur dioxide are some gases

volcanic gases

also called lahar, violent, fast moving suspention of water,ash, and rocks

volcanic mudflows

are giant ocean waves created by underwater earthquakes

tsunamis

meaning of PHIVOLCS

philippine institute of volcanology and seismology

areas near volcanoes which usually surrounded by hot springs and boiling mud pool

geothermal field

use the heat beneath the earth’s surface

geothermal energy

ROCKS

Erisey Manayon · 35問 · 5ヶ月前