LOCATION GULF NYEstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, active, nonacid, frigid Aeric Endoaquepts
TYPICAL PEDON: Gulf silt loam - pasture (Colors are for moist soil)
Ap--0 to 7 inches; very dark gray (10YR 3/1) silt loam; weak fine granular structure; friable; many fine roots; strongly acid; abrupt smooth boundary. (6 to 10 inches thick)
Bg--7 to 12 inches; grayish brown (10YR 5/2) silt loam; moderate medium prismatic structure; firm; few fine and medium roots; common medium pores; 5 percent rock fragments; common medium faint yellowish brown (10YR 5/6) and common medium distinct strong brown (7.5YR 5/6) masses of iron accumulations; strongly acid; clear smooth boundary. (4 to 10 inches thick)
Bw--12 to 26 inches; pale brown (10YR 6/3) silty clay loam; moderate medium prismatic structure; firm; faces of peds are gray (10YR 6/1); few fine and medium roots; common medium pores; 10 percent rock fragments; common medium distinct strong brown (7.5YR 5/6) and few medium faint yellowish brown (10YR 5/6) masses of iron accumulation and common medium faint gray (10YR 6/1) redoximorphic depletions inside the matrix; moderately acid; clear smooth boundary. (10 to 20 inches thick).
2C1--26 to 40 inches; dark grayish brown (10YR 4/2) gravelly loam; common medium distinct brown (7.5YR 4/4) mottles; massive; friable; 15 percent rock fragments; moderately acid; clear smooth boundary. (0 to 14 inches thick).
2C2--40 to 60 inches; grayish brown (10YR 5/2) gravelly loam; massive with some stratification; 20 percent rock fragments; few medium faint yellowish brown (10YR 5/6) masses of iron accumulation; slightly acid.
TYPE LOCATION: Jefferson County, New York; Town of Rodman, 220 yards south of Williams Road and 1 mile east of the junction of Williams Road, and N.Y. State Route 177. USGS Rodman topographic quadrangle; Latitude 43 degrees, 50 minutes, 16 seconds N. and Longitude 75 degrees, 54 minutes, 23 seconds W., NAD 1927.
RANGE IN CHARACTERISTICS: The thickness of the solum ranges from 20 to 40 inches. Rock fragments range from 0 to 20 percent in horizons above 20 inches and from 5 to 35 percent in horizons between 20 to 40 inches. Reaction ranges from strongly acid to neutral in the upper horizons and from moderately acid to slightly alkaline within 40 inches.
The Ap or A horizon is neutral or has hue of 10YR or 2.5Y, value of 2 or 3, and chroma of 0 through 2. Texture ranges from very fine sandy loam to silty clay loam in the fine-earth fraction.
The Bg has a hue 7.5YR through 5Y, value of 4 through 6, and chroma of 1 or 2. Texture ranges from loam to silty clay loam in the fine earth fraction. Structure is subangular blocky or prismatic.
The Bw horizon has hue of 7.5YR through 5Y, value of 4 through 6, and chroma 3 or 4. Texture ranges from loam to silty clay loam in the fine-earth fraction. Structure is subangular blocky or prismatic.
The C or 2C has a hue of 7.5YR through 5Y, value of 4 through 6, and chroma of 1 or 2. Textures are loam in the fine earth fraction. It is massive or massive with weak stratification.
COMPETING SERIES: Angelica is the only series in the same family. Angelica soils formed in till and lack the water sorting in the substratum.
GEOGRAPHIC SETTING: The Gulf soils are nearly level soils in depressions in glacial outwash terraces, older stream terraces and kame-kettle landforms. Slopes range from 0 to 3 percent. The soil formed in water-sorted material which ranges widely in texture among layers below 20 inches. Mean annual precipitation ranges from 35 to 43 inches, mean annual air temperature from 40 to 44 degrees F., and mean growing season from 90 to 130 days.
GEOGRAPHICALLY ASSOCIATED SOILS: The well drained Lagross soils and the well drained and moderately well drained Haights soils are associated in a drainage sequence with Gulf. Carbondale soils are in bogs. Bice and Pinckney soils are on adjoining till uplands.
DRAINAGE AND PERMEABILITY: Poorly drained and very poorly drained. The potential for surface runoff is very low. Internal drainage is slow. Permeability is moderate in the solum and moderate or moderately rapid in the substratum. An apparent seasonal high water table is at depths of 0 to 0.5 feet.
USE AND VEGETATION: Where undrained, the soil is in forest mostly of elm and soft maple, is reverting to brush or is pastured. Drained areas are used for growing corn, small grains, hay and pasture.
DISTRIBUTION AND EXTENT: Tug Hill Plateau and Western Adirondack Hills of New York. MLRA 141 and 142. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Amherst, Massachusetts.
SERIES ESTABLISHED: Jefferson County, New York, 1983.
Remarks: The Gulf series is the frigid equivalent of Atherton.
Diagnostic horizons and features in this pedon include:
Ochric epipedon - from a depth of 0 to 7 inches. (Ap horizon)
Cambic horizon - from a depth of 7 to 26 inches. (Bg and Bw horizon)
Aquic conditions - beginning at a depth of 7 inches.