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Sedimentary Environments

Diagram of sedimentary environments in Boston Harbor and Massachusetts Bay. The graphic shows (from shore to open ocean, estuary areas of deposition, inner shelf areas of erosion and nondeposition, and the ocean basin area of deposition.

Diagram of sedimentary environments in Boston Harbor and Massachusetts Bay. In contrast to the erosional regime of the islands themselves, the subaqueous area around Boston Harbor Islands is largely depositional in nature. Fine-grained sediments come from mainland fluvial sources, some tidal currents, and a small amount from the islands themselves. Blue arrows indicate tides and wave directions, brown arrows indicate sediment sources.

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Graphic by Trista Thornberry-Ehrlich (Colorado State University) after figure 12 in Knebel and Circé (1995)

Public domain:Full Granting Rights

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Boston Harbor Islands National Recreation Area, Code: BOHA

Boston Harbor Islands National Recreation Area, Massachusetts
Latitude: 42.2621994018555, Longitude: -70.8761825561523

NPS.gov Collection

01/01/0001

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