ESRI ArcMap project containing of the Quaternary geology of the East Greenwich and parts of the Bristol and Crompton Quadrangle, scale and explanation. Contains the feature class coverage of Quaternary geologic map units, as well as the topomap basemap.

Gravel, sand, silt, and clay contents were determined for samples from Narragansett Bay and the adjacent Rhode Island Shelf. In the Narragansett Bay system, clayey silt and sand-silt-clay are the most abundant sediments. Sand is abundant locally and on the inner shelf. In general, toward the lower passages of the Bay the sediments show a progressive change to coarser textures.