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Rock Cycle
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Residual Soil
Located ABove parent material
Transporatated Soil
moved away from parent bedrock
Soil Profile
vertical sequence of of soil layers
4 main characteristics that make up a mineral
Naturally Occuring
Inorganic Solid
Definate Crystalline Structure
Specific Chemical Composition
Crystal
A solid in which the atoms are arranged in a repeating pattern.
magma
molten material found beneath earths crust
7 ways to identify a mineral
Color, Luster, Streak, Cleavage & Fracture, Hardness, Density & Specific Gravity, And Texture
Most abundant element found in earths crust?
Oxygen
Oxygen + Silicon = ?
silicates
How are IGNEOUS rocks formed...?
crystallization of magma
two types of igneous rocks
intrusive- coarse grained rocks. cooled slowly underneath earths crust.
extrusive- Fine grained rocks. cooled quickly on earths surface.
sediments
pieces of solid material that have been deposited
how are sedimentary rocks formed.
deposition burial & lithification
meatmorphic rocks are formed by ________ & ____________
heat & pressuree!
two types of weathering?
mechanical- physical
chemical- composition
exfoliation
stripping away outter layers
frost wedging
water inside cracks, cold, freezes, ice expands, rocks crack even more
4 factors effecting chemical weathering
water oxygen carbon dioxide acids
hydrolysis , oxidation
the reaction of substances with water.
the reaction of substances with oxygen.
depostition
final stage of erosion process
running water
the most signifigant cause of erosian
gravitys role in erosian
w/o gravity, glaciers would not slope downward
how does running water effect erosian?
carries sediments
wind erosian
moves particles
soil
loose covering of broken rock particles and organic matter
3 characteristics of soil
texture fertility color
does poorly developed soil show little or great distinction between layers?
little distinction
4 soil types
polar soils- high altitudes
temprate soils- support a diverse enviroment
desert soils- high level of accumulated salt
tropical soils- weathered and infertile
soil fertility
how well a soil can support a growth of plants.
2 main factors that effect soil color?
compostion and climate
soil horizon
a distinct layer zone with a soil profile
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Author
Anonymous
ID
733
Card Set
Rock Cycle
Description
the rock cycle key points
Updated
2009-11-04T02:00:05Z
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