|15 - Sole marks on the base of turbidite layer.|
|As a turbidity current rushes out over the previously deposited
shale, it shapes the shale and the sand settles into those shapes.
If, as is seen in this example, one could look at the bottom of the sandstone
layer, you would see the preserved shapes that the turbidity current had
created. Geologists call these features sole marks.
More on sole marks
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