UCDavis GEL 109 Sedimentary Structures

Offshore Marine Environments

Hummocky Cross Stratification
Hummocky Cross Stratification
Storm Cross Stratification (HCS and wave ripples)
Shallow subtidal sandstones and shales
Closer view of wave ripple in previous photo
Shallow subtidal sandstone with mud chips from the same succession

The Devonian-Mississippian Boundary, Southern Canadian Rockies:
(Research Question: Did the depositional environment remain deep during this disconformity?)

Overview photo of the outcrop
Closer view of the disconformity
Phosphatized bone on the disconformity
Glauconitic sandstone with pyrite on the disconformity

See the turbidites page as well.

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