struktur-sedimen-3

8/18/2019 struktur-sedimen-3

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Sedimentary Sole Structuresand Desiccation cracks

Load Casts

Flute Casts

Desiccation Cracks


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Formation of Load Casts

Density of sand unit > densityof mud unit

2 cm

2 cm

Denser sand sinks down

into the mud due to theforce of gravity and the

greater density, forming a

load cast. The sand may

separate completely and

form a blob in the mud.


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Formation of Flute Casts

A turbulent water current, often foundin the deep sea, flows over mud.

cause erosion of the mud to take place.

As the velocity of the

current decreases,

sediments aredeposited in the

mould, forming the

flute casts.


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struktur-sedimen-3

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