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32 Cards in this Set

  • Front
  • Back
a solid mixture of crystals of one or more minerals
the process by which one rock type changes into another
rock cycle
is formed when the texture and composition of a preexisting rock is changed by heat or bressure deep underground
metamorpic rock
rocks that are formed when sediments are compacted and cemented together
sedimentary rock
formed from the cooling of magma or lava
igneous rock
based on compesition and texture
rock classification
the minerals that make up a rock
determined by the sizes, shapes, and positions of the grain of which its made
composed of small grains such as silt or clay
fine grain
have a texture between coarse and fined grained rock
medium grained
contain large grains the size of pebbles
coarse grained
what are the three different grains of rock
fine,middle and coarse grained
what are the three ways magma can change
1.when rock is heated 2.when pressure is released 3.when rock changes composition
lightweight and light in color
felsic rock
denser and darker than felsic rock
mafic rock
forms when magma cools and solidifies beneath the earths surface
intrusive igneous rock
large ballon shapeded formations that result when magma cools at great depths
igneous rock that forms on the earths surface
extrusive igneous rock
flow of lava emanatingfrom an erupting volcano
lava flow
long cracks in the earths surface
large amounts of lava from a fissure covering a vast area
lava plateau
layers in sedimetary rock
what are the three catogories of sedimentary rock
clastic chemical and organic
made of fragments of other rocks and minerals
clastic rock
forms from solutions of minerals and water
chemical rock
most limestone forms from the remains of organisms that lived in oceans
organic rock
the layering in sedimentary rock
occurs when rock comes into contact with magma
contact metamorphism
occurs when enormous pressure builds up in rock that is deeply buried under other rock
regional metamophism
what are the two textures of metamorphic rock
foliated and nonfoliated
minerals that are alligned and look like pages in a book
foliated metamophic rock
do not have aligned mineral grains
non foliated metamorphic rock