endogenic processes lesson 3

International Association of Volcanology and Chemistry of the Earth's Interior

IAVCEI

Secondary vents

These are other smaller vents or opening through which ash and gases and lava escape.

thermal energy

________ of the mantle responsible for earthquakes, decay and other movements related to earth's crust.

extinct

a volcano _____ or dead, when it hasn't erupted for at least 100, 000 years

active

a volcano is _______, or alive, when it erupts often

composite volcano

consist of lava that is mixed with sand or gravel which in turn creates cinders or volcanic ash.

1. Magmatism and Volcanism 2. Earthquake and Deformation 3. Metamorphism

endogenous processes (3) mem

magmatism

happens when magma is generated and develops into igneous (magmatic) rocks.

strato volcanoes

composite volcanoes are also called

eruptions

occur when underground pressure is released when blocks of the earth's crust shift. for example, earthquakes

ENDOGENIC (ENDOGENOUS) PROCESSES

take place within or in the interior of Earth.

1. shield volcano 2. cinder cone volcano 3. composite volcano 4. fissure volcano 5. caldera

types of volcanoes sccfc (5)

volcano

A mountain formed by the materials ejected from a volcano.

Crater

After an eruption, the tip or top of the volcano tends to get blown off, leaving a small depression at the top of it.

volcano

An opening in the earth's crust through which molten lava, ash, and gases are ejected.

Ashes, clouds and cinders

As the eruption continues, ashes and gases are discharged into the air, which is carried further by wind action.

Pyroclastic flow

Fast moving current of hot gas and volcanic matter.

Oceanic Ridges'

are locations undersea (at the seafloor) volcanoes.

ring of fire

is a volcanic chain (volcanoes on land) surrounding the Pacific Ocean. • It is famous for its regular earthquake and volcanic activity.

magma chamber

is the area with massive collection of magma below the earth's crust from which magma flows out.

volcanism

it is the process that usually happens after magma is formed. • it is the process of bringing material from the deep interior and spilling it forth on the Earth's surface.

main vent

main exit point of molten magma is released to the surface.

1. fertile 2. hot springs 3. geothermal energy

what are the beneficial effects of volcanic eruptions? • The soil surrounding a volcano is very f______. • Effect of water from h______ s______ coming from volcanic energy. • Community and national levels uses volcanic areas as a resource for production of g_______ energy (heat energy from within the Earth).

philippine institute of volcanology and seismology

what is phivolcs

dormant

when a volcano is ______, or sleeping, it has not erupted for a long time- but it might in the future

decade volcanoes

• 16 volcanoes worldwide • two factors: 1. history of destructive eruptions 2. nearness to populated areas

shield volcano

• Short, cone shape, slow and consist of basaltic lava after it is hardened. • _______ volcanoes almost always have large craters at their summit.

cinder cone volcano

• consist of mostly loose, grainy cinders and have very little to no lava. • are normally small about a miles span and about one thousand feet vertically. • have fairly steep slopes and normally have a small crater at the top.

caldera volcano

• extreme volcanoes • most powerful and catastrophic types of volcanoes. • shaped more like an inverse volcano. • with an enormous magma chamber bulges up beneath the ground from the extremely high pressures of the trapped gases within.

fissure volcano

•hard to recognize from the ground • have no main crater, the ground just splits and lava pours out through the cracks. • After a fissure, volcano erupts and has cooled because it's a solid it will look mainly like the plains.