Rock sediments are deposited at the bottom of a body of water, such as a river or lake. When the flow of water changes direction, the sediment has different momentum, so it does not change direction as fast, and it will collide with the river bank and then settle. Another way is when a river widens or enters a lake, the flow rate decreases, so the particles fall to the bottom. This can also be seen at a delta region when a river meets a gulf or ocean. The Mississippi Delta region in Louisiana the Gulf of Mexico is a good example of this.
Sediments.
Normally, the oldest rocks are found at the bottom of the layers, being the first of the sediments that were deposited.
Igneous,metamorphic and sedimentary
Landforms shaped or deposited by wind forces are described as aeolian.
Sediments.
When sedimentary rock is weathered in nature by chemical or mechanical means, the particles that are produced can be eroded and deposited, becoming sediments.
Sediments.
When sedimentary rock is weathered in nature by chemical or mechanical means, the particles that are produced can be eroded and deposited, becoming sediments.
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The "sandwich" structure is due to the rock being from sediments deposited in sequential periods of activity and nature. Each single "slice" of solid rock is a "bed", and sequences of these build up "members" of "formations".
Normally, the oldest rocks are found at the bottom of the layers, being the first of the sediments that were deposited.
Igneous,metamorphic and sedimentary
Landforms shaped or deposited by wind forces are described as aeolian.
Sediments.
Sedimentary Rocks.
Sedimentary rock
The rock formed would usually be classified as clastic sedimentary rock, like shale.