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Rhodesfolly Subaqueous Soils

Soil Map Unit Description from the RI Soil Survey Report (2010 Update)

WRh0: Rhodesfolly fine sand 0 to 1 meter water depth (2010 Update for the RI Coastal Zone Soil Survey Phase I - please download the latest copy of the spatial data).

This subaqueous soil occurs on bay bottoms, active washover fans and shore faces in open bays. Slope ranges from 0 through 5 percent.

Typically, Rhodesfolly soils have a non-fluid, dark gray, fine sandy surface and subsoil derived from marine or estuarine material. These soils are formed in stratified fine sandy and sandy marine materials that are deposited as a result of washover events or migration of barrier islands. Buried surface horizons with greater amounts of organic matter and sulfides are often identified.

This soil is permanently submerged beneath up to 1 meter of salt or brackish water, though the soil may be exposed at extreme low tides. All horizons neutral pH in place and some horizons may develop an acidic pH after oxidation.

Included with this soil are areas of Napatree and Anguilla soils in areas where Pleistocene aged glacial material occurs at a shallow depth.

This soil is subject to drastic change due to storm and overwash events. It may support submerged aquatic vegetation and wildlife habitats. Fishing and shellfish farming are common, as well as recreational harvesting. Some areas are vegetated with native algae and eelgrass (Zostera marina).

Link to Official Series Description - Rhodesfolly| Soil Profile Photo of Rhodesfolly Series

UPDATE: The Coastal Zone of Rhode Island is currently being updated and re-mapped, for more information on this update visit: www.mapcoast.org


WRh1: Rhodesfolly fine sand 1 to 2 meter water depth (2010 Update for the RI Coastal Zone Soil Survey Phase I - please download the latest copy of the spatial data).

This subaqueous soil occurs on bay bottoms, active washover fans and shore faces in open bays. Slope ranges from 0 through 5 percent.

Typically, Rhodesfolly soils have a non-fluid, dark gray, fine sandy surface and subsoil derived from marine or estuarine material. These soils are formed in stratified fine sandy and sandy marine materials that are deposited as a result of washover events or migration of barrier islands. Buried surface horizons with greater amounts of organic matter and sulfides are often identified.

This soil is permanently submerged beneath 1 to 2 meters of salt or brackish water, though the soil may be exposed at extreme low tides. All horizons neutral pH in place and some horizons may develop an acidic pH after oxidation.

Included with this soil are areas of Napatree and Anguilla soils in areas where Pleistocene aged glacial material occurs at a shallow depth. Also included in this map unit may be areas of Fort Neck or Marshneck soils in areas where the washover fan grades into low energy lagoon bottom areas.

This soil is subject to drastic change due to storm and overwash events. It may support submerged aquatic vegetation and wildlife habitats. Fishing and shellfish farming are common, as well as recreational harvesting. Some areas are vegetated with native algae and eelgrass (Zostera marina).

Link to Official Series Description - Rhodesfolly| Soil Profile Photo of Rhodesfolly Series

UPDATE: The Coastal Zone of Rhode Island is currently being updated and re-mapped, for more information on this update visit: www.mapcoast.org