LOCATION ANNAPOLIS MD
Established Series
SLD-EHE-DRPV/ Rev. JWB
11/2015
ANNAPOLIS SERIES
MLRA(s): 149A (Northern Coastal Plain)
Depth Class: Very deep
Drainage Class (Agricultural): Well drained
Saturated Hydraulic Conductivity: Moderately high
Landscape: Coastal plain, upland
Parent Material: Loamy glauconitic fluviomarine deposits
Slope: 0 to 80 percent
Mean Annual Temperature (type location):13 degrees C (55 degrees F)
Mean Annual Precipitation (type location):1168 mm (46 inches)
TAXONOMIC CLASS: Fine-loamy, glauconitic, mesic Typic Hapludults
TYPICAL PEDON: Annapolis fine sandy loam, on a 3 percent slope, in a crop field. (Colors are for moist soil unless otherwise indicated.)
Ap--0 to 20 cm (0 to 8 inches); brown (10YR 4/3) fine sandy loam, brown (10YR 5/3) dry; moderate thick platy structure parting to weak fine and medium subangular blocky; friable; nonsticky; nonplastic; many fine and few medium roots; common fine and few medium tubular and common fine vesicular pores; 2 percent ironstone channers; strongly acid; abrupt smooth boundary. (5 to 25 cm thick)
Bt1--20 to 38 cm (8 to 15 inches); strong brown (7.5YR 4/6) loam; moderate medium subangular blocky structure; friable; slightly sticky; slightly plastic; many fine roots; common fine and medium tubular pores and many fine to coarse vesicular pores; few fine distinct red (2.5YR 4/6) iron masses in the matrix; few distinct brown (7.5YR 4/3) clay films on faces of peds and in pores; 20 percent fine black (5Y 2.5/1) glauconite pellets; 5 percent ironstone channers; very strongly acid; clear wavy boundary.
Bt2--38 to 69 cm (15 to 27 inches); strong brown (7.5YR 4/6) channery sandy clay loam; moderate medium subangular blocky structure; friable; slightly sticky; slightly plastic; common fine roots; common fine and medium tubular pores; many fine and medium and few coarse vesicular pores; few distinct brown (7.5YR 4/3) clay films on faces of peds and in pores; 25 percent fine black (5Y 2.5/1) glauconite pellets; 25 percent ironstone channers and flagstones; very strongly acid; gradual wavy boundary. (Combined thickness of the Bt horizon is 38 to 114 cm)
E and Bt3--69 to 155 cm (27 to 61 inches); reddish brown (2.5YR 4/3) loamy sand (E); massive; very friable, non sticky, non plastic; lamellae and bands of brown (7.5YR 4/3) fine sandy loam (Bt); weak medium subangular blocky structure; friable, slightly sticky, slightly plastic; common distinct clay bridging between sand grains; eight irregular and discontinuous 25 to 50 mm thick lamellae; few fine faint platy brownish yellow (10YR 6/6) iron masses; many medium faint platy strong brown (7.5YR 4/6) iron masses; few medium faint platy brown (10YR 4/3) clay depletions; common medium and coarse rounded yellowish brown (10YR 5/8) weakly cemented iron masses surrounding dark reddish brown (2.5YR 2.5/3) and olive (5Y 4/3) glauconite rich material; few fine roots throughout; many fine black (N 2/) glauconite pellets; 1 percent ironstone channers; very strongly acid; clear wavy boundary.
CB--155 to 203 cm (61 to 80 inches); stratified 60 percent strong brown (7.5YR 4/6) loamy sand; single grain; loose; nonsticky, nonplastic; 40 percent dark reddish brown (2.5YR 3/3), strong brown (7.5YR 5/8), and dusky red (10R 3/3) loamy sand; moderate thick platy structure; very firm; few fine roots; 40 percent fine black (5Y 2.5/1) glauconite pellets throughout; extremely acid.
TYPE LOCATION: Anne Arundel County, Maryland; about 2.1 miles southeast of Staples Corner, about 1.0 mile southwest of the intersection of State Route 450 and Rutland Road, about 1,000 feet northwest of Rutland Road, in hay land, about 75 feet northwest of farm lane; USGS Bowie, MD topographic quadrangle; latitude 38 degrees 58 minutes 42.56 seconds N. and longitude 76 degrees 38 minutes 11.86 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Depth to the Top of the Argillic Horizon: 5 to 25 cm (2 to 10 inches)
Depth to the Base of the Argillic Horizon: 64 to 183 cm (25 to 72 inches)
Depth to Bedrock: Greater than 183 cm (72 inches)
Depth to Seasonal High Water Table: Greater than 183 cm (72 inches)
Rock Fragments: 0 to 35 percent, by volume ironstone channers, flagstones and rounded quartz gravel throughout the profile
Soil Reaction: Strongly acid to extremely acid throughout the profile, unless limed
Content of Glauconite: 0 to 20 percent, by volume in the A, E, and BE horizons and 20 percent or more in the Bt, BC, CB, and C horizons, often increasing with depth.
Other Soil Features: The Bt, BC, CB and C horizons contain few to many zones of platy, iron rich material that is non-cemented to moderately cemented. These discontinuous zones are often in the lower B horizons, at a contact between two horizons of differing texture. Ironstone channers and flagstones are iron-rich masses that are at least strongly cemented.
RANGE OF INDIVIDUAL HORIZONS:
A or Ap horizon:
Color--hue of 7.5YR to 2.5Y, value of 2 to 4, and chroma of 1 to 4
Texture (fine-earth fraction)--loamy sand, sandy loam, loamy fine sand, or fine sandy loam and where truncated, sandy clay loam or clay loam
E or BE horizon (if it occurs):
Color--hue of 2.5YR to 2.5Y, value of 3 to 6, and chroma of 4 or 6
Texture (fine-earth fraction)--loamy sand, loamy fine sand, fine sandy loam, sandy loam, or loam
Bt horizon:
Color--hue of 7.5YR to 5Y, value of 3 to 5, and chroma of 3 to 6
Texture (fine-earth fraction)--sandy clay loam, clay loam, or loam
Other features--iron masses in shades of red, brown, or yellow
BC horizon (if it occurs):
Color--hue of 7.5YR to 5Y, value of 3 to 5, and chroma of 3 to 6
Texture (fine-earth fraction)--sandy loam, fine sandy loam, or loam
Other features--iron masses in shades of red, brown, or yellow
CB or C horizon:
Color--Matrix color is centered on strong brown but ranges from dusky red to shades of green or black. Colors vary depending on the presence of iron oxides and glauconite.
Texture (fine-earth fraction)--loamy sand, loamy fine sand, sandy loam, or fine sandy loam and may be stratified with textures ranging from loamy fine sand to sandy clay
Redoximorphic features--iron masses in shades of red, brown, or yellow
COMPETING SERIES: None
GEOGRAPHIC SETTING:
Landscape: Coastal plain, upland
Landform: Flat
Hillslope Profile Position: Summit, shoulder, backslope
Geomorphic Component: Interfluve, sideslope, noseslope
Parent Material: Loamy glauconitic fluviomarine deposits
Slope: 0 to 80 percent
Elevation: 3 to 49 m (10 to 160 feet)
Frost-free period: 180 to 210 days
Mean Annual Temperature: 9 to 15 degrees C (48 to 58 degrees F)
Mean Annual Precipitation: 889 to 1270 mm (35 to 50 inches)
GEOGRAPHICALLY ASSOCIATED SOILS:
Adelphia soils--have less than 20 percent, by volume glauconite in the particle-size control section, have a seasonal high water table at 46 to 107 cm (1.5 to 3.5 feet); on lower landscape positions
Colemantown soils--have a seasonal high water table above 30 cm (1.0 foot); in upland depressions and drainageways and on low terrace treads
Collington soils--have 10 to 20 percent, by volume glauconite in the particle-size control section, on similar landforms
Colts Neck soils--have a redder subsoil and have less than 20 percent, by volume glauconite in the particle-size control section, on similar landforms
Donlonton soils--have a fine particle-size control section and have a seasonal high water table at 46 to 107 cm (1.5 to 3.5 feet); on lower landscape positions
Freehold soils--have less than 10 percent, by volume glauconite in the particle-size control section, on similar landforms contain small amounts of glauconite
Holmdel soils--have less than 20 percent, by volume glauconite in the particle-size control section, have a seasonal high water table at 30 to 46cm (1.0 to 1.5 feet); on lower landscape positions
Keansburg soils--have less than 20 percent, by volume glauconite in the particle-size control section, have a seasonal high water table at less than 15 cm (0.5 foot); on lower landscape positions
Kresson soils--have a fine particle-size control section and have a seasonal high water table at 30 to 46 cm (1.0 to 1.5 feet); on lower landscape positions
Marlton soils--have a seasonal high water table at 46 to 107 cm (1.5 to 3.5 feet); on lower landscape positions
Tinton soils--have a sandy surface layer more than 51 cm (20 inches) thick and have less than 20 percent, by volume glauconite in the particle-size control section, on slightly higher lying positions
Wist soils--have less than 20 percent, by volume glauconite in the particle-size control section, have a seasonal high water table at 107 to 183 cm (3.5 to 6.0 feet); on slightly lower landscape positions
DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:
Drainage Class (Agricultural): Well drained
Internal Free Water Occurrence Class: Very deep (greater than 150 cm) and absent (not observed)
Flooding Frequency and Duration: None
Ponding Frequency and Duration: None
Index Surface Runoff: Medium to very high
Saturated Hydraulic Conductivity: Moderately high in the subsoil; high in the substratum
Permeability Class (obsolete): Moderately slow in the subsoil; moderately rapid in the substratum
Shrink-swell Potential: Low
USE AND VEGETATION:
Major Uses: Cropland, woodland, and urban development
Dominant Vegetation: Where cultivated-corn, soybeans, small grains, truck crops, hay and pasture. Where wooded--oaks, with some hickory, tulip poplar, dogwood, beech and holly.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: RALEIGH, NORTH CAROLINA
Distribution: Northern Coastal Plain of Maryland and possibly New Jersey
Extent: Small
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES ESTABLISHED: Anne Arundel County, Maryland, 2003
REMARKS: Annapolis soils were formerly mapped as Monmouth soils in Anne Arundel County, MD. Changes in the glauconitic mineralogy family resulted in a need to develop a glauconitic series to replace soils that are fine-loamy (Monmouth soils are in a fine particle-size family). Sulfidic materials are commonly found at some depth below the series control section. (The initial name proposed for this series was "Magothy.")
Diagnostic horizons, characteristics and features recognized in this pedon are:
Ochric epipedon--the zone from 0 to 20 cm (0 to 8 inches) (Ap horizon)
Argillic horizon--the zone from 20 to 155 cm (8 to 61 inches) (Bt1,Bt2, E and Bt3 horizons)
Other soil features identified with this pedon:
Series control section--the zone from 0 to 155 cm
ADDITIONAL DATA: NSSL data is available for the Typical Pedon; Pedon ID S94MD003017.
Previous revisions: 1999-SLD,EHE, DRV; 11/2002-DAS,JAK; 10/2004-SLD,DHK; 8/2005-SLD, JWB; 9/2006- Rev. DRPV-JWB
OSD Data Mapunit ID: 393706
Typical Pedon Data Mapunit ID: 104497
OSD User Pedon ID: Annapolis-OSD
National Cooperative Soil Survey
U.S.A.