IGNEOUS ROCKS Flashcards
hot liquid rock
maga
less dense light-color rocks that are rich in aluminum potassium and sodion silicon
felsic
dense dark-color rocks that are rich in calcium iron and magnesium
mafic rock
pushesintrudes
intrudes
intrusive igneous rockrock formed from the cooling and hardening of magma under the Earth’s surface
intrusive igneous rock
forms when a dike or stock is exposed to the surface. the rock around it erodes away and only the igneous rock is left
volcanic neck
a sheetlike body of intrusive rock that cuts across other layers of rock
dike
is a large body of intrusive rock
stock
a sheetlike body of intrusive rock that lays parallel to other layers
sill
the largest intrusive rock body
batholith
large irregular-shaped intrusive bodies.
large irregular-shaped intrusive bodies.
a rock that forms as a result of volcanic activity at or near the Earth’s surface.
volcanic neck
lava flowwhen lava erupts from a volcano
lava flow
long cracks in the Earth’s crust were lava flows from
fissures
when a large amount of lava flows out of fissures out onto land,the lava can cover a large area
lava plateau
