APES Geology Rocks Vocab - Shope

Geology Rocks!

• magma
o molten rock formed beneath the earth’s crust
o creates igneous rock

• extrusive
o rock formed by flowing magma such as from a volcano

• intrusive
o rock formed by “injected” magma as into a fissure or crevice

• igneous
o (fire, ignite)
o rock formed from melted materials

• metamorphic
o (meta = change, morph = form)
o altered rock, formed from different materials

• sedimentary
o (sediment = settled particles)
o rock formed from action of water

• detrital material
o rock formed from small material washed away then solidified

• lithification
o the process of forming rocks

• foliation
o (foliage = plants, leaves)
o rocks forming in “leaf-like” layers
o i.e.: shale