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Flashcards in types of Rocks Deck (20):
1

sedimentary

erosions collect in deposits which contain sediments which pressurize into a rock

2

compaction

weight of sediment layers force fluids out decreasing the space between grains

3

cementation

the dissolved minerals start to crystalize sticking the grains together to form rock

4

clast

pieces of mineral and rock fragments

5

clastic sedimentary

made up of pieces of clast

6

chemical sedimentary

minerals crystallize directly from water, has a dominent mineral

7

biochemical sedimentary

contains the remains of organisms and/or fossils

8

how does fossiliferous limestone form

from fossils and biochemical sedimentary

9

Extrusive igneous

when lava hardens, smooth uniformed look, can't see individual grains

10

Intrusive Igneous

when magma hardens, has a rough look, you can see the individual grains and minerals because more time

11

what is granite

intrusive igneous

12

Contact Metamorphism

molten rock affects the surrounding rock making it bend

13

How are Metamorphic rocks formed

high pressure and temperature

14

Plastic Deformation metamorphism

permanent change in shape due to bending or folding

15

Regional metamorphism

chemical fluids act on large volumes of rock

16

Foliated metamorphic

plastic deformation- layers of light and dark composition usually elongated

17

Non-foliated metamorphic

minerals not aligned and crystals not interlocking

18

What is shist

foliated metamorphic

19

Can fossils be in meta. or igneous?

no because in igneous it would just disintegrate, and in metamorphic it could not withstand the high pressure and temp.

20

What is the rock cycle?

the changing of rocks into each other in different circumsatnces