Barrier Island Roll Over
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When BI moves with a big storm
How do sand dunes look vs. wave ripples?
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Sand Dunes ripples go in the SAME direction
Wave ripples go BACK AND FORTH
Explain how geologist can make theories about earth before humans ever existed.
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Scientist are able to make theories by looking at unconformities that are all
over the planet.
Beach Ripples
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we see symmetrical ripples
Sand Dunes
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, Direction of wind will effect that look of a sand dune: we
see a hill build ( deposition of sand ) and then a drop where
the wind cant hit
- in Dunes we see Cross Bedding: which is the result from
transport
-by either wind or water
- indicates ancient current directions
Example: Zion National Parks
Deltas
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Is a River that encounter another body of water, it then
dumps its materials
Top area of delta is course grain, then mediums grain, then
fine grain
There are three types of Deltas:
1) Wave dominated
2) Tidal Dominated
3) River Dominated
Nonconformity
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3) Nonconformity
bedded rocks rest on an eroded surface or crystalline
rocks (ie: ingenious and metamorphic rocks)
Give this one a try later!
When BI moves with a big storm
How do sand dunes look vs. wave ripples?
,Give this one a try later!
Sand Dunes ripples go in the SAME direction
Wave ripples go BACK AND FORTH
Explain how geologist can make theories about earth before humans ever existed.
Give this one a try later!
Scientist are able to make theories by looking at unconformities that are all
over the planet.
Beach Ripples
Give this one a try later!
we see symmetrical ripples
Sand Dunes
Give this one a try later!
, Direction of wind will effect that look of a sand dune: we
see a hill build ( deposition of sand ) and then a drop where
the wind cant hit
- in Dunes we see Cross Bedding: which is the result from
transport
-by either wind or water
- indicates ancient current directions
Example: Zion National Parks
Deltas
Give this one a try later!
Is a River that encounter another body of water, it then
dumps its materials
Top area of delta is course grain, then mediums grain, then
fine grain
There are three types of Deltas:
1) Wave dominated
2) Tidal Dominated
3) River Dominated
Nonconformity
Give this one a try later!
3) Nonconformity
bedded rocks rest on an eroded surface or crystalline
rocks (ie: ingenious and metamorphic rocks)
