Stratigraphy, Correlation, And Depositional Environments Of The Middle To Late Pleistocene Interglacial Deposits Of Southern Delaware

Abstract

Rising and highstands of sea level during the middle to late Pleistocene deposited swamp to nearshore sediments along
\nthe margins of an ancestral Delaware Bay, Atlantic coastline, and tributaries to an ancestral Chesapeake Bay. These deposits
\nare divided into three lithostratigraphic groups: the Delaware Bay Group, the Assawoman Bay Group (named herein), and the
\nNanticoke River Group (named herein). The Delaware Bay Group, mapped along the margins of Delaware Bay, is subdivided
\ninto the Lynch Heights Formation and the Scotts Corners Formation. The Assawoman Bay Group, recognized inland of
\nDelaware’s Atlantic Coast, is subdivided into the Omar Formation, the Ironshire Formation, and the Sinepuxent Formation.
\nThe Nanticoke River Group, found along the margins of the Nanticoke River and its tributaries, is subdivided into the Turtle
\nBranch Formation (named herein) and the Kent Island Formation.