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Geosciences LibreTexts

Offshore Marine Environments (Chapters 14, 15)

  • Page ID
    4320
  • HummockyXStrat.jpg

    Figure \(\PageIndex{1}\) - Hummocky Cross Stratification

    HCS.jpg

    Figure \(\PageIndex{2}\) - Hummocky Cross Stratification (HCS)

    StormXstrat.jpg

    Figure \(\PageIndex{3}\) - Storm Cross Stratification (HCS and wave ripples)

    WaveShaley.jpg

    Figure \(\PageIndex{4}\) - Shallow subtidal sandstones and shales

    Wave.jpg

    Figure \(\PageIndex{5}\) - Closer view of wave ripple in previous photo

    SSmudchips.jpg

    Figure \(\PageIndex{6}\) - Shallow subtidal sandstone with mud chips from the same succession


    Return to Sedimentary Environments

    The Devonian-Mississippian Boundary, Southern Canadian Rockies

     

    Research Question: Did the depositional environment remain deep during this disconformity?

    DMBoundary.jpg

    Figure \(\PageIndex{7}\) - Overview photo of the outcrop

    DMBoundary2.jpg

    Figure \(\PageIndex{8}\) - Closer view of the disconformity

    DMBoundaryBone.jpg

    Figure \(\PageIndex{9}\) - Phosphatized bone on the disconformity

    DMBoundaryGlauconite.jpg

    Figure \(\PageIndex{10}\) - Glauconitic sandstone with pyrite on the disconformity

    See the turbidites page as well.


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