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Flashcards in Chapter 20 Deck (31):
1

Chemical sediments

Settlements that form by the precipitation of minerals from water on earth surface

2

Cleavage

The tendency of a mineral to break a long plains of weakness

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Crystal form

The outward expression of the orderly internal arrangement of Atoms in a crystal

4

Crystallization

The growth of a solid from a liquid or gas whose Adams come together in a specific chemical proportions and Crystalline arrangements

5

Density

Mass over volume

6

Deposition

The stage of sedimentary rock formation in which eroded particles come to rest

7

Erosion

The process by which weathered rock particles are removed and transported away by water wind or ice

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Fracture

A break that does not occur along the plane of weakness

9

Igneous rock

Rocks formed by the cooling and crystallization of hot molten rock material called magma

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Lava

Molten magma that moves upward from inside earth and flows onto the surface

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Magma

Molten rock in earths interior

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Mechanical deformation

Metamorphism caused by stress such as increased pressure

13

Metamorphic rocks

Rocks form from pre-existing rocks that have been changed or transformed by high temperature, pressures, or both

14

Metamorphism

The changes in rock that happen as physical and chemical conditions change

15

Mineral

A naturally formed in organic crystalline solid composed of an ordered arrangement of Adams with the specific chemical composition

16

Mobs scale of hardness

A ranking of minerals hardness which is its resistance to scratching

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Non-silicate

I mineral that does not contain silica

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Partial melting

The incomplete melting of rocks resulting in magmas of various compositions

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Plutonic rock

Intrusive igneous rock formed from magma that calls beneath earths surface

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Polymorph

One of two or more minerals that contain the same elements in the same proportion's but have different crystal structures

21

Recrystallization

A process that occurs when rocks are subjected to high temperatures and pressures and go through a change and minerals; often accompanied by the loss of H2O or CO2

22

Rock

An aggregate of minerals

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Rock cycle

A sequence of events involving the formation destruction alteration and re-formation of rocks. Magma to igneous to sediment to sedimentary to metamorphic to magma

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Sedimentary rocks

Rocks formed from the accumulation of weathered material - sediments

25

Sedimentation

The stage of sediment Terry rock formation in which deposited sediments accumulate and change into sediment Terry rock through the processes of compaction and usually cementation

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Solubility

A measure of the ease with which a mineral can be dissolved

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Streak

The color of a mineral in it's powdered form

28

Tectonic plates

Sections into which earths crust is broken up

29

Volcanic rocks

Extrusive igneous rocks formed by the irruption of molten rock at earths surface

30

Weathering

Disintegration and or decomposition of rock at or near Earth surface

31

Three types of volcanoes

Shield, composite, and cinder cone