endogenic Flashcards
metamorphism
process of changing materials that make up rock
endo
endon, internal
genic
genesis, origin
volcanism
process where planetary bodies release their built-up internal heat
volcanoes
a vent or opening on the earth’s surface which allows magma, volcanic ash, and gas to escape
fissure
elongated fracture or crack on the earth’s crust from which lava erupts
conduit
a passageway through which magma travels to reach the earth’s surface
vent
an opening where volcanic materials are released
crater
bowl-shaped depression at the top of the volcano where the vent is located
flank
side of the volcano
magma chamber or reservoir
underground compartment where the magma is stored
stratovolcano or composite volcano
they are built of alternating layers of lava flows, volcanic ash, and cinders
shield volcano
formed by loose and fluid that allows to go over each other (layering on top)
examples of shield volcano
kilauea, mauna kea, and mauna loa
cinder cone volcano or scoria cone
formed by fuild lava that is ejected because of high pressure that builds up in the magma chamber
the three boundaries of mt. pinatubo
tarlac, zambales, pampanga
active volcanoes
exhibit volcanic activity within the last 10,000 years
inactive volcanoes
no record in the past 10,000 years, potentially active or dormant
extinct volcanoes
have no record of eruption, no magma supply
four types of lava flow
pahoehoe, a’a, pillow, blocky
six types of volcanic eruption
icelandic, strombolian, plinian, hawaiin, vulcanian, vesuvian
plutonic rocks (intrusive)
rocks formed when magma solidifies below the earth’s surface
volcanic rocks (extrusive)
formed when lava solidifies on the earth’s surface
