LOCATION CROSIADORE MD
Tentative Series
CMB-JEB/Rev. PSK-JAK
11/2015
CROSIADORE SERIES
MLRA(s): 153C, 153D, 149A
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: RALEIGH, NORTH CAROLINA
Depth Class: Very Deep
Drainage Class (Agricultural): Somewhat poorly drained
Internal Free Water Occurrence: Shallow (10 to 20 inches) and common (present 3 to 6 months)
Index Surface Runoff: Low or medium
Permeability: Moderate or moderately slow in the subsoil and moderately rapid or rapid in the underlying material
Landscape: Lowland
Landform: Interfluves, low hills, marine terraces, and flats
Geomorphic Component: Dip, rise, and talf
Parent Material: Silty eolian deposits underlain by sandy and loamy fluvial and marine (fluviomarine) deposits
Slope: 0 to 5 percent
Elevation (type location): 5 feet
Mean Annual Air Temperature (type location): 56 degrees F.
Mean Annual Precipitation (type location): 45 inches
TAXONOMIC CLASS: Fine-silty, mixed, active, mesic Aquic Hapludults
TYPICAL PEDON: Crosiadore silt loam on a 0 percent slope, in a cultivated field. (Colors are for moist soil unless otherwise indicated.)
Ap--0 to 10 inches; brown (10YR 4/3) silt loam, brown (10YR 5/3) dry; weak fine and medium subangular blocky; friable; slightly sticky; slightly plastic; many very fine roots throughout; common very fine tubular pores; moderately acid; abrupt smooth boundary. (2 to 11 inches thick)
BE--10 to 13 inches; light yellowish brown (2.5Y 6/4); silt loam; 25 percent of horizon is brown (10YR 4/3) Ap material; weak medium subangular blocky structure; friable; slightly sticky; slightly plastic; few fine roots throughout; common very fine tubular pores; slightly acid; clear smooth boundary. (0 to 7 inches thick)
Bt1--13 to 16 inches; light olive brown (2.5Y 5/4); silt loam; 10 percent of horizon is brown (10YR 4/3) Ap material; weak medium prismatic structure parting to moderate medium subangular blocky; friable; slightly sticky; slightly plastic; few fine roots throughout; common very fine tubular pores; common distinct light olive brown (2.5Y 5/6) clay films on ped faces; common fine distinct yellowish brown (10YR 5/4) irregular iron masses throughout; common fine prominent light gray (2.5Y 7/2) irregular iron depletions throughout; slightly acid; clear smooth boundary.
Bt2--16 to 24 inches; light olive brown (2.5Y 5/4); silt loam; weak medium prismatic structure parting to moderate medium angular blocky; firm; slightly sticky; moderately plastic; common fine roots throughout; common fine and very fine tubular pores; many distinct light olive brown (2.5Y 5/6) clay films on ped faces; common fine and medium prominent dark yellowish brown (10YR 4/6) and few fine prominent strong brown (7.5YR 4/6) irregular iron masses throughout; common medium distinct gray (2.5Y 6/1) irregular iron depletions throughout; slightly acid; clear wavy boundary. (Combined thickness of the Bt horizon is 8 to 25 inches.)
Btg1--24 to 28 inches; light olive gray (5Y 6/2); silt loam; strong medium prismatic structure parting to moderate medium angular blocky; firm; moderately sticky; moderately plastic; many faint olive (5Y 5/3) clay films on faces of peds; many medium and coarse prominent yellowish brown (10YR 5/6) and common fine prominent strong brown (7.5YR 5/8) irregular iron masses on ped faces and many fine faint white (5Y 8/1) irregular clay depletions throughout; very strongly acid; abrupt wavy boundary. (4 to 16 inches thick)
2Btg2--28 to 33 inches; gray (10YR 5/1); sandy clay loam; moderate coarse prismatic structure parting to moderate very thick platy; firm (moist), hard (dry); slightly sticky; slightly plastic; 3 percent, by volume pebbles; common distinct light olive brown (2.5Y 5/3) clay films on faces of peds; common medium prominent strong brown (7.5YR 4/6) and common medium distinct yellowish brown (10YR 5/4) irregular iron masses throughout; common fine prominent white (5Y 8/1) irregular clay depletions throughout; strongly acid; clear wavy boundary. (5 to 16 inches thick)
2BC--33 to 37 inches; light olive brown (2.5Y 5/4); sandy loam; weak thick platy structure; friable; slightly sticky; slightly plastic; 3 percent, by volume pebbles; common medium prominent yellowish red (5YR 4/6) irregular iron masses throughout and common fine prominent dark reddish brown (5YR 3/2) irregular iron and manganese masses throughout and common medium prominent gray (5Y 5/1) irregular iron depletions throughout and common fine prominent white (5Y 8/1) clay depletions throughout; strongly acid; abrupt smooth boundary. (4 to 16 inches thick)
2Cg--37 to 42 inches; light brownish gray (2.5Y 6/2); sand; massive; very friable; nonsticky; nonplastic; 3 percent, by volume pebbles; slightly acid; abrupt irregular boundary. (5 to 15 inches thick)
2Ab--42 to 50 inches; dark grayish brown (10YR 4/2); loamy sand; massive; very friable; nonsticky; nonplastic; 10 percent, by volume pebbles; very strongly acid; gradual wavy boundary. (0 to 12 inches thick)
2C1--50 to 57 inches; mixed yellowish brown (10YR 5/8), grayish brown (10YR 5/2), and strong brown (7.5YR 5/8) gravelly loamy sand; massive with weak thick nonpedogenic plates; very friable; nonsticky; nonplastic; 20 percent, by volume pebbles; moderately acid; clear wavy boundary. (7 to 20 inches thick)
2C2--57 to 70 inches; mixed yellowish brown (10YR 5/8), grayish brown (10YR 5/2), and strong brown (7.5YR 5/8) sandy loam; massive; very friable; slightly sticky; slightly plastic; 3 percent, by volume pebbles; common medium distinct light brownish gray (10YR 6/2) and common fine prominent gray (5Y 6/1) irregular iron depletions throughout; neutral; abrupt smooth boundary.
2C3--70 to 80 inches; light yellowish brown (2.5Y 6/4) sandy loam; massive; very friable; slightly sticky; nonplastic; 3 percent, by volume pebbles; common fine prominent yellowish red (5YR 4/6) and common medium prominent yellowish brown (10YR 5/8) irregular iron masses throughout; many medium prominent light brownish gray (10YR 6/2) irregular iron depletions throughout; neutral. (Combined thickness of 4C horizon is 15 to 30 inches.)
TYPE LOCATION: Talbot County, Maryland; about 1.75 miles northwest of Trappe Station on Otwell Road which turns into a farm lane, 0.25 miles south of farm lane; USGS Oxford, Maryland topographic quadrangle; lat. 38 degrees 41 minutes 53.51 seconds N. and long. 76 degrees 07 minutes 58.65 seconds W., NAD 83.
RANGE IN CHARACTERISTICS:
Depth to top of Argillic horizon: 8 to 15 inches
Depth to base of Argillic horizon: 30 to 50 inches
Depth to Bedrock: Greater than 72 inches
Depth to Seasonal High Water Table: 10 to 20 inches, January through May
Rock Fragment content: 0 to 20 percent, by volume mixed pebbles in horizons below the lithologic discontinuity
Soil Reaction: Very strongly acid to strongly acid throughout the profile, unless limed. Inherently, these soils have a low base status
Depth to Lithologic Discontinuity: 24 to 60 inches
RANGE OF INDIVIDUAL HORIZONS
Ap or A horizon:
Color--hue of 10YR or 2.5Y, value of 3 to 5, chroma of 2 to 4
Texture--silt loam
AB or BA horizon (if it occurs):
Color--hue of 10YR or 2.5Y, value of 4 or 5, chroma of 3 or 4
Texture--silt loam or silty clay loam
BE horizon or EB horizon (if it occurs):
Color--hue of 2.5Y, value of 5 or 6,chroma of 4 or 6
Texture--silt loam
Bt horizon:
Color--hue of 10YR or 2.5Y, value of 5 or 6, chroma of 3 to 6
Texture--silt loam or silty clay loam
Redoximorphic Features--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
Btg horizon:
Color--hue of 2.5Y or 5Y, value of 4 to 6, chroma of 1 or 2
Texture--silt loam or silty clay loam
Redoximorphic Features--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2Btg horizon:
Color--hue of 10YR or 2.5Y, value of 4 or 6, chroma of 1 or 2
Texture--commonly sandy clay loam and less commonly, loam, and clay loam
Redoximorphic Features--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2BC horizon:
Color--hue of 10YR or 2.5Y, value of 5 or 6, chroma of 3 to 8
Texture--commonly loamy sand and sandy loam and less commonly sand or loam
Redoximorphic Features--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2BCg horizon (if it occurs):
Color--hue of 10YR or 2.5Y, value of 5 to 7, chroma of 1 or 2
Texture--commonly loamy sand, sandy loam and loam and less commonly fine sandy loam, very fine sandy loam and sandy clay loam
Redoximorphic Features--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2Cg horizon:
Color--hue of 10YR or 2.5Y, value of 5 to 7, chroma of 1 or 2
Texture--commonly loamy sand and less commonly sand or sandy loam
Redoximorphic Features (if they occur)--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2Ab horizon (if it occurs):
Color--hue of 10YR or 2.5Y, value of 3 or 4, chroma of 1 to 3
Texture--commonly sandy loam or sandy clay loam and less commonly loamy sand or loam
Redoximorphic Features (if they occur)--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
2C horizon:
Color--hue of 10YR to 5Y, value of 5 to 8, chroma of 3 to 8
Texture (fine-earth fraction)--sand, fine sand, loamy sand and sandy loam
Redoximorphic Features (if they occur)--iron masses in shade of red, yellow, or brown and iron depletions in shades of brown, yellow, olive, or gray
COMPETING SERIES:
Berea soils--moderately deep to paralithic contact and formed in residuum from acid shale
Deputy soils--deep to paralithic contact and formed in loess underlain by residuum weathered from shale
Hibler soil--old alluvial soils influenced by limestone bedrock, on river terraces
Knobtop soils--moderately deep to lithic contact and formed in loess underlain by residuum weathered from igneous rocks
Leipsic soils--have a seasonal high water table at 20 to 40 inches below the soil surface (moderately well drained); on slightly higher landform positions
Marquand soils--formed in silty and loamy sediments derived form loess, colluvium and alluvium and typically have greater than 60 inch solum thickness
Mattapex soils--have a seasonal high water table at 20 to 40 inches below the soil surface (moderately well drained); on slightly higher landform positions
Morehead soils--formed in old alluvium, high in silt, derived from shale, siltstone, and sandstone
Scottsburg soils--formed in loess and residuum from acid shale and have fragic soil properties
Sharptown soils--contain more than 10 percent, by volume glauconite in the subsoil
GEOGRAPHIC SETTING:
Landscape: Lowland
Landform: Interfluves, low hills, marine terraces, and flats
Hillslope Profile Position: Summits, backslopes, and footslopes
Geomorphic Component: Dip, rise, and talf
Parent Material: Silty eolian deposits underlain by sandy and loamy fluvial and marine (fluvio-marine) deposits
Elevation: 2 to 70 feet
Mean Annual Air Temperature: 56 to 59 degrees F.
Mean Annual Precipitation: 42 to 46 inches
Frost Free Period: 200 to 220 days
GEOGRAPHICALLY ASSOCIATED SOILS:
Elkton soils--have a seasonal high water table at 0 to 10 inches below the soil surface; on lower lying positions
Fallsington soils--have a seasonal high water table at 0 to 10 inches below the soil surface and a fine-loamy particle-size class; on lower lying positions
Keyport soils--have a seasonal high water table at 20 to 40 inches below the soil surface and a fine particle-size class; on higher landform positions
Matapeake soils--have a seasonal high water table below 72 inches from the soil surface; on higher landform positions
Mattapex soils--have a seasonal high water table at 20 to 40 inches below the soil surface; on slightly higher landform positions
Othello soils--have a seasonal high water table at 0 to 10 inches below the soil surface; on lower lying positions
DRAINAGE AND PERMEABILITY:
Drainage Class (Agricultural): Somewhat poorly drained
Index Surface Runoff: Low or medium
Internal Free Water Occurrence: Shallow (10 to 20 inches) and common (present 3
to 6 months)
Permeability: Moderate or moderately slow in the subsoil and moderately rapid or rapid in the underlying material
USE AND VEGETATION:
Major Uses: Cultivated crops
Dominant Vegetation: Where cultivated--mostly agronomic crops such as corn, wheat and soybeans. Where wooded-American Beech (Fagus grandifolia), white oak (Quercus alba), sweet gum (Liquidambar stryaciflua), loblolly pine (Pinus taeda) and American holly (Ilex opaca).
DISTRIBUTION AND EXTENT:
Distribution: Coastal Plain of Maryland and possibly Delaware
Extent: Small; 5,000 to 10,000 acres
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Morgantown, West Virginia
SERIES PROPOSED: Talbot County, Maryland; 2000.
REMARKS: Crosiadore soils were previously mapped with the Barclay series. Crosiadore soils are different from Barclay by having an argillic horizon with a particle-size control section that is fine-silty rather than coarse-silty and by having a mesic temperature regime rather than thermic.
Diagnostic horizons and soil characteristics recognized in this pedon:
Ochric epipedon--the zone from the surface of the soil to a depth of 10 inches (Ap horizon)
Argillic horizon--the zone from 13 to 33 inches (Bt1, Bt2, Btg1, and 2Btg2 horizons)
Aquic conditions--the soil has redox depletions and concentrations within the upper 24 inches of the argillic horizon, with periodic saturation and reduction from January to May
Other soil features identified with this pedon:
Series Control Section--the zone from 0 to 60 inches
ADDITIONAL DATA: This pedon sampled as S00MD-041-021
Data Mapunit ID (type location): To be developed.
National Cooperative Soil Survey
U.S.A.