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Volcanoes
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Geyser
geyser is a vent in Earth's surface that periodically ejects a column of hot water and steam.
Volcanism
is the phenomenon associated with surface discharge of magma or hot water and steam,geyser and fumaroles.
FUMAROLES
A fumarole (or fumerole - the word ultimately comes from the Latin fumus, "smoke") is an opening in a planet's crust, often in areas surrounding volcanoes, which emits steam and gases such as carbon dioxide, sulfur dioxide, hydrogen chloride, and hydrogen sulfide.
VOLCANO
HOTSPRING
Geomorphology
- is the study of the relief feature of the Earth's crust
hot spring is a spring produced by the emergence of geothermally heated groundwater that rises from the Earth's crust. There are geothermal hot springs in many locations all over the crust of the earth.
Introduction to Volcano
3 Geologic Forces that alter the shape the Earth
a. Diastrophism- vertical and horizontal
movement of the crust that typically produces the mountain
Erosion- is the physical removal of rocks or wearing down of landmasses by geomorhic agent.
lahar- also called as the mudflow
Tephra fall- fragmented materials that consits of pumice, scoria, lithic materil or crystals or combination of the four.
Pyroclastic Flow- are fast moving currents of hot gases and rock travelling downhill from a volcano.
Summit- is the highest point or apex of volcano.
Throat is the entrance of a volcano.
Flank- is the side of the volcano
Other Features of Volcano
Dikes are the barriers or obstacle in the volcano.
Conduit- is a channel or pipe conveying liquid materials such as magma.
Lava-is the rocks or magma expelled during volcanic eruption.
Ash clouds-volcanic ash or ash clouds which is composed of pulverized rocks created during eruptio
Sills- intrusive sheets, are the solidified
lava flows that are originally forced their way between and parallel to older layers of rock.