✅ SOLVED What would cause this type of rock formation?

[creskol]

 

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[Red-Coat]

Neat. Those look like they may be a particular kind of turbidite deposit sometimes seen in sedimentary rocks known generically as "sole marks" and more specifically as "flute marks" or "flute casts".

Sole Marks

Sole marks are features that are preserved when a coarse sand or silt layer deposits onto mud. Typically during deposition of the sand/silt the flow of the water erodes pits and scars into the mud layer and then ...

serc.carleton.edu

 

[DownEast_Detecting]

cool!

 

[creskol]

Thanks a bunch Red-Coat!!