Geology Flashcards
igneous rock
come from magma and lava
magma
liquid rock the stays under the surface of the earth
lava
liquid rock that is above the surface of the earth
extrusive rock
when rocks that drys when it is above the surface of the earth
intrusive rock
when rocks dry when they are under the surface
mineral
a solid naturally occurring substance
lithosphere
the rigid outer layer of the earth
Asthenosphere
the upper layer of the mantle
crystal
a piece of a homogeneous solid substance
erosion
the wearing away of something naturally
floodplain
a flat plain near a river where sediment is deposited
glaciers
large bodies of ice
moraines
rocks that are moved by glaciers
sandstone
sediment rock that has been compressed small pieces of sand into a rock
mudstone
a rock made from fine grains
shale
a fine grain sedimentary rock that is made from hardening clay
siltstone
a sedimentary rock that has one particle different from mud or sand stone
conglomerate
a sedimentary rock that has different rock cemented together
limestone
a sedimentary rock formed from sea organism
coal
a sedimentary rock that is formed from dead plants and animals
salt rock
a sedimentary rock formed when a seabed or salt lake drys up
metamorphic rocks
they are rock that go though change
metamorphism
when something changes into something else
mineral ores
rocks mined to obtain metal