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Figure F17. Schematic model of the repetitive facies assemblages that characterize lithologic Unit I. The Type 2 facies assemblage is composed of greenish gray shelly bioturbated mud with a sharp lower contact, followed by a transition uphole into dark gray micaceous very fine sandy mud with color banding and alternations of sand and mud showing upward coarsening. The Type 1 facies assemblage is the basal part of the Type 2 assemblage.

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