Monkey Flower growing on an exposure of the basal Simi Conglomerate Member of the Paleocene Santa Susana Formation. The Simi Conglomerate was deposited along the shoreline as a fan delta in both marine and nonmarine environments. Note that the Santa Susana Formation, including the basal Simi Conglomerate Member, was deposited during a transgression of the shoreline over an erosional surface. Subsidence of the earth's surface during deposition produced shoreline deposits at the base of the formation, shoreface deposits in the middle, and shelf deposits at the top.
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