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The AAPG/Datapages Combined Publications Database
AAPG Bulletin
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Controversy over the environment of deposition of
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the prolific oil-producing Marchand sandstones of the Anadarko basin has continued unabated for many years. In view of this, inductive inference and multiple working hypotheses were used to account for all proposed environments. The upper Marchand sandstones (Pennsylvanian-Missourian) are formed best in the Northeast and East Binger fields of Caddo County, Oklahoma. Primary pay is from three sand zones (Marchand "A," "B," and "C") at depths of approximately 10,000 ft (3,000 m).
The upper Marchand sandstones are indicated by geometric and internal features to be part of a clastic, shallow-marine, tidal-dominated system. This system is characterized by coastal-intertidal flats drained by tidal channels in conjunction with basinward subtidal rhythmic sand ridges and depressions. Up to 80 ft (24 m) of Marchand sandstone probably reworked from sediments derived from the Wichita and/or Ouachita uplifts was distributed by tidal currents into erosional depressions commonly associated with subtidal sand ridges. Shelfward, intertidal flats principally drained by a series of tidal channels repeatedly prograded and receded during the upper Marchand interval.
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