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| formed from volcanic material ie: Mt.St. Helen |
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Organic parent material - Peat moss
ie: formed in old lakes that will with moss to form bogs |
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Soil inverts itself
aka: Black cotton soil
SE texas - mississippi area
the cotton belt
- develop in montmorillonite clay that has a very high shrink/ swell capacity.
- it swells in moist conditions & cracks in dry climates ( thus turning itself over when it cracks, then is rehydrated)
- High fertility but difficult to work |
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_ Sandy Parent Material that is very low in nutrients
- Plants must adapt to infertil siol that is high in- organic acids
- typically in a human influenced area
- develop a deep organic layer
Rio negro |
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| Patterns and Processes in the lithosphere |
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Orders of relief:
1ST ORDER |
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Definition
Water- Large oceans
Land Continents |
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| Pattens of 1st order of relief |
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Definition
- Most of the Land on oceans fit together, especially South America and Africa
[Discovered by Wegner] |
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| Patterns Observed by Wegner that pointed to continental drift |
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Definition
a) continents seem to fit together
b) coal deposits – connect E. NA & W. Europe
c) Similar fossils S America & Africa ( temperate plant fossils)
d) Evidence of past glaciations in the S. Hemisphere |
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| Rising and falling of continents |
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| Process devised by Arthur Holmes and Hess using a deep ocean survey |
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| Theory Of Plate Tectonics. |
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Relief occurring on the continents ( highs& Lows) & within Oceans
Explained by plate interaction |
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| Plates moving apart (Divergent) |
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| Plates moving along sides |
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| Plates convergent with subduction |
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Energy with in the Earth
Uplifting from
-volcanos
- tectonic features |
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| 2 ways extrusive volcanic (magma) form: |
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Definition
!. Plates moving apart
- no explosive
-basaltic
(Lava Ash)
2. Convergence w/ subduction
- more viscous
- more explosive
_andesitic
-continental
(Lava Ash Gas) |
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Separating magma, can create a basaltic plateau
- Can be oceanic or continental
* Lava feature non, explosive |
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| Strato Volcanos/ Composite |
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1.Stream Processes
2. Glacial Processes |
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