LOCATION SINEPUXENT MD+DE NJ
Established Series
GPD/RBT/DCS
11/2017
SINEPUXENT SERIES
MLRA(s): 153D
Soil Survey Regional Office (SSRO) Responsible: Raleigh, North Carolina
Depth Class: Very deep
Drainage Class: Subaqueous (permanently submersed)
Saturated Hydraulic Conductivity: High to very high
Parent Material: Mixed sandy anthropogenic dredge deposits
Slope: 0 to 1 percent
Mean Annual Air Temperature: 56 degrees F. (13 degrees C)
Mean Annual Water Temperature: 57 degrees F. (14 degrees C)
TAXONOMIC CLASS: Sandy, siliceous, mesic Haplic Sulfiwassents
TYPICAL PEDON: Sinepuxent sand, on a permanently submerged dredge deposit shoal landform on 0 percent slope under 61 centimeters of strongly saline water. (Colors are for moist soil unless otherwise stated.)
^Ag-- 0 to 3 inches (0 to 8 cm); dark olive gray (5Y 3/2) sand; single grain; loose; nonsticky, nonplastic, nonfluid; common fine and very fine roots; 5 percent, by volume shell fragments; clear smooth boundary.
2^Cseg1--3 to 17 inches (8 to 43 cm); dark greenish gray (5GY 3/1) sandy loam; few fine faint dark gray (5Y 4/1) mottles; massive; friable; nonsticky, nonplastic, slightly fluid; few very fine roots; 1 percent, by volume shell fragments; sulfurous odor; clear smooth boundary. (15 to 50 centimeters thick)
3^Cg--17 to 37 inches (43 to 95 cm); very dark gray (5Y 3/1) sand; few medium distinct gray (5Y 5/1) mottles; single grain; loose; nonsticky, nonplastic, nonfluid; 10 percent, by volume shell fragments; gradual smooth boundary. (10 to 38 centimeters thick)
4^Cseg2--37 to 65 inches (95 to 165 cm); very dark gray (N 3/) very fine sandy loam; massive; firm; slightly sticky, slightly plastic, slightly fluid; 2 percent, by volume shell fragments; 3 percent, by volume very dark grayish brown (10YR 3/2) organic fragments; sulfurous odor.
TYPE LOCATION: Worcester County, Maryland; approximately 3,870 feet southeast of the Verrazano Bridge, 1,730 feet east of Rum Point, 2,250 feet northwest of Sandy Point Island in Sinepuxent Bay, in an eelgrass meadow; Tingles Island USGS topographic quadrangle, lat. 38 degrees, 14 minutes, 13.14 seconds N. and long. 75 degrees, 9 minutes, 27.51 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Depth to Bedrock: Greater than 80 inches (200 centimeters)
Depth to Seasonal High Water Table: Permanently submersed
Depth to Sulfidic Materials: 0 to 20 inches (0 to 50 centimeters)
Manner of failure/fluidity class: Non fluid to slightly fluid throughout.
Shell Fragments: 0 to 30 percent, by volume throughout profile
Soil Reaction: Slightly alkaline to moderately alkaline through the profile
Oxidized Reaction: Extremely or ultra-acid
Depth to Lithologic Discontinuity: Greater than 1 inch, up to 3 inches (3 centimeters, up to 7 cm) can occur in the upper 65 inches (165 centimeters)
Electrical Conductivity: Greater than 16 mmhos/cm throughout the profile
Salinity Class: Moderately to Strongly Saline
RANGE OF INDIVIDUAL HORIZONS:
^Ag or Aseg horizon: (some pedons have human transported materials, some do not)
Color--hue of 10YR, 5Y, N, or 10Y, value of 2.5 to 5, and chroma of 0 to 3
Texture (fine-earth fraction)-sand, loamy sand, sandy loam, loam, or silt loam
Cg or Cseg horizon (some pedons have a Cg or Cseg, if no ^Ag):
Color--hue of 5Y, N, 10Y, or neutral value of 3 or 4, and chroma of 1
Texture (fine-earth fraction)-sand, loamy sand, or silt loam
2^Cg or 2^Cseg horizon:
Color--hue of 2.5Y to 10GY or neutral, value of 2 to 5, and chroma of 1 or 2
Texture (fine-earth fraction)-loamy sand, sandy loam, or loam
3^Cg or 3^Cseg horizon:
Color--hue of 2.5Y, 10GY, or neutral, value of 2 to 5, and chroma of 1 or 2
Texture (fine-earth fraction)-sand or loamy sand
4^Cg or 4Cseg horizon:
Color-hue of 5Y to 5GY or neutral, value of 2.5 to 5, and a dominant chroma of 1.
Texture (fine-earth fraction)-sand, fine sand, loamy sand, loamy fine sand, sandy loam, fine sandy loam, or very fine sandy loam
5^Cseg, 6^Cseg, or 7^Cseg horizon (if they occur):
Color--hue of 2.5Y to 5GY or neutral, value of 2 to 6, and chroma of 1 or 2
Texture (fine-earth fraction)-coarse sand, sand, fine sand, loamy sand, sandy loam, or loam
COMPETING SERIES: None
GEOGRAPHIC SETTING:
Landscape: Mid-Atlantic Coastal Plain Lagoons and Estuaries
Landform: Dredge-deposit shoal or spoil pile
Parent Material: Mixed sandy anthropogenic dredge deposits
Slope: 0 to 1 percent
Mean Annual Air Temperature: 10 to 14 degrees C. (50 to 57 degrees F.)
Mean Annual Water Temperature: 11 to 14 degrees C. (52 to 58 degrees F.)
Bathymetry: 0.2 to 1.5 meters below mean sea level (0.5 to 5 feet)
Water Regime: Tidal, 0.3 to 1.5 meter tidal range (1.0 to 5.0 feet)
GEOGRAPHICALLY ASSOCIATED SOILS:
Demas soils (tentative)-are sandy throughout and are on washover-fan flats and slopes associated with storm surge events, formed on natural subaqueous landforms.
Mantoloking soils (tentative)-are sandy throughout and are on inactive flood-tidal delta landforms, formed on natural subaqueous landforms.
Cottman soils (tentative)-formed in lagoonal deposits which have a coarse-loamy particle size class and are on lagoon bottom barrier side landforms, formed on natural subaqueous landforms.
Indian River soils (tentative)-are sandy throughout and are on active flood-tidal delta landforms, formed on natural subaqueous landforms.
DRAINAGE AND PERMEABILITY:
Drainage Class: Subaqueous (permanently submersed)
Saturated Hydraulic Conductivity: High to Very High
USE AND VEGETATION:
Major Uses: Most areas are vegetated and function as estuarine benthic wildlife habitat. Benthic fauna such as tubeworms, clams, juvenile blue crabs, scallops, oysters, and juvenile finfish are common.
Dominant Vegetation: Native vegetation includes rooted algae, eelgrass (Zostera marina) and widgeon grass (Ruppia maritima). Vegetative cover ranges from 0 to 75 percent of the soil surface.
SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Raleigh, North Carolina
DISTRIBUTION AND EXTENT: The Mid-Atlantic coastal estuaries of New Jersey, Maryland, Delaware, and possibly Virginia. This series is of small extent.
SERIES ESTABLISHED: Worcester County, Maryland, 2016.
REMARKS:
Diagnostic horizons and features recognized in this pedon include:
Ochric epipedon (oxidized)--the zone from 0 to 3 inches (0 to 8 centimeters) ^Ag horizon
Peraquic conditions--the zone from 0 to 65 inches (0 to 165 centimeters) is permanently saturated
Sulfidic conditions--the zone from 3 to 17 inches (8 to 43 centimeters) (2^Cseg1 horizon) and from 37 to 65 inches (95 to 165 centimeters) (4^Cseg2 horizon) contain sulfidic materials (verified by moist incubation)
Human-transported materials-the zone from 0 to 65 inches (0 to 165 centimeters) is influenced by human alteration
Fluidity Class-the zone from 3 to 17 inches (8 to 43 centimeters) (2^Cseg1 horizon) and from 37 to 65 inches (95 to 165 centimeters) (4^Cseg2 horizon) are slightly fluid.
ADDITIONAL DATA:
NASIS User site and pedon ID: 1997MD047014
NASIS Data Map Unit ID: 800941
________________________________________
National Cooperative Soil Survey
U.S.A.