Abstract
A trenching and coring study was conducted within a 0.05 km2 parking lot area in Lynn, Massachusetts, to define the depositional setting of the underlying filled tide‐lands. Two stratigraphic sections running the length of the property and roughly perpendicular to the shoreline were constructed from 15 trenches (2.0 to 4.0 m deep) and 13 vibracores taken at the base of the trenches to a maximum depth of 9.6 m. A typical stratigraphic section of the autochthonous sediments in the western portion of the project area consisted of a Pleistocene basement overlain by tidal flat and/or channel fill deposits, which in turn were topped by low marsh and/or high marsh peat. Toward the bay shoreline, tidal flat sediments overlie beach and nearshore deposits that cap the underlying Pleistocene glaciomarine fades. The presence of high marsh peat in the western portion of the study area corroborates the marshlands shown in historical charts (1849–1925) of the Lynn shoreline prior to massive tidelands filling projects. T...
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