General Environmental Setting:

    Nonmarine - overbank

Rock Description:
    Horizontal-wave bedded sandstone and mudstone. The lenses of sandstone are probably vestiges of ripples

Depositional Environment Represented:

    Overbank (splay or floodplain)

Other environments where rock type is typically found:

    Tidal flats and shallow offshore facies where fluctuating energy conditions are frequent.

General Environmental Setting:

    Nonmarine - overbank

Rock Description:
    Horizontal-ripple cross-laminated sandstone with mudstone partings. Only lee side of ripples preserved

Depositional Environment Represented:

    Overbank deposit (levee or splay).

Other environments where rock type is typically found:

    Not found in other environments

General Environmental Setting:

    Nonmarine - overbank

Rock Description:
    Horizontal and ripple cross-laminated sandstone with mudstone partings

Depositional Environment Represented:

    Overbank (levee or splay)

Other environments where rock type is typically found:

    Alternating low (mudstone) and moderate energy (sandstone) such as tidal or subtidal facies or facies characterized by periodic flooding (overbank areas).

General Environmental Setting:

    Nonmarine - overbank

Rock Description:
    Convolute (soft-sediment structures) and horizontal bedded sandstone. Note the syn-depositional fault near the base

Depositional Environment Represented:

    Channel of proximal crevasse-splay

Other environments where rock type is typically found:

    Any moderate to high energy facies characterized by rapid deposition.

General Environmental Setting:

    Nonmarine - overbank

Rock Description:
    Horizontal bedded siltstone with mudstone laminae. This rock consists of varves of light coloured siltstone and darker mudstone

Depositional Environment Represented:

    Lacustrine. True varves are the result of seasonal climatic changes

Other environments where rock type is typically found:

    Not found in other environments

General Environmental Setting:

    Nonmarine - overbank

Rock Description:
    fragment preserved on bedding plane. Such fragments are common in overbank deposits.

Depositional Environment Represented:

    Other environments where rock type is typically found:

      Not found in other environments

    General Environmental Setting:

      Nonmarine - overbank

    Rock Description:
      Massive siltstone. The absence of bedding may be the result of rapid deposition, bioturbation, rooting or rapid de-watering. Alternatively bedding may be present but not visible to the unaided eye

    Depositional Environment Represented:

      Crevasse-splay, levee or lacustrine.

    Other environments where rock type is typically found:

      Not found in other environments

    General Environmental Setting:

      Nonmarine - overbank

    Rock Description:
      Lenticular bedded siltstone and mudstone

    Depositional Environment Represented:

      Overbank (lake, distal splay, levee)

    Other environments where rock type is typically found:

      Any low energy environment in which there is a periodic influx of coarse sediment (flood or storm events) such as tidal, shallow offshore or lake facies.

    General Environmental Setting:

      Nonmarine - overbank

    Rock Description:
      Horizontal bedded mudstone and cross-bedded sandstone. Base of core is composed of rip-up-clasts. This core has been interpreted as the result of a single flood with currents declining from base to the top.

    Depositional Environment Represented:

      Crevasse-splay

    Other environments where rock type is typically found:

      Not found in other environments


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