LOCATION BRISBANE NDEstablished Series
TAXONOMIC CLASS: Fine-loamy over sandy or sandy-skeletal, mixed, superactive, frigid Pachic Argiustolls
TYPICAL PEDON: Brisbane loam - on a 1 percent west facing plane slope in a cultivated field. (When described the soil was moist to 27 inches. Colors are for dry soil unless otherwise stated.)
Ap--0 to 6 inches; dark grayish brown (10YR 4/2) loam, very dark grayish brown (10YR 3/2) moist; moderate medium granular structure; hard, very friable, sticky and plastic; few very fine roots; neutral; abrupt smooth boundary. (5 to 8 inches thick)
Bt1--6 to 12 inches; brown (10YR 4/3) clay loam, dark brown (10YR 3/3) moist; strong medium prismatic structure parting to strong medium angular blocky; hard, friable, sticky and plastic; few very fine roots; many, thin dark brown (10YR 3/3 moist) clay films on faces of peds; neutral; gradual wavy boundary.
Bt2--12 to 17 inches; dark grayish brown (10YR 4/2) clay loam, very dark grayish brown (10YR 3/2) moist; strong medium prismatic structure parting to strong medium angular blocky; hard, friable, sticky and plastic; few very fine roots; many moderate thick dark grayish brown (10YR 4/2 moist) clay films on faces of peds; neutral; gradual wavy boundary. (Combined thickness of the Bt horizons is 8 to 28 inches.)
Bk--17 to 31 inches; grayish brown (2.5Y 5/2) clay loam, very dark grayish brown (2.5Y 3/2) moist; weak medium prismatic structure parting to weak medium subangular blocky; hard, friable, sticky and plastic; few very fine roots; many large irregular soft masses of lime; violent effervescence; mildly alkaline; gradual wavy boundary. (0 to 16 inches thick)
2C--31 to 60 inches; strong brown (7.5YR 5/6) and light olive brown (2.5Y 5/4) sand, strong brown (7.5YR 4/6) and olive brown (2.5Y 4/4) moist; single grain; loose, nonsticky and nonplastic; few very fine roots; thin layer of dark yellowish brown (10YR 4/4) sand, brown (10YR 4/3) moist; mildly alkaline.
TYPE LOCATION: Grant County, North Dakota; 22 miles south of Carson; 2150 feet north and 775 feet east of the southwest corner of sec. 34, T. 131 N., R. 87 W.
RANGE IN CHARACTERISTICS: Solum thickness ranges from 16 to 35 inches. The mollic epipedon ranges from 16 to 31 inches in thickness. Depth to sand typically is 20 to 34 inches but ranges from 20 to 40 inches.
The A horizon has hue of 10YR, value of 3 or 4 (2 or 3 moist), and chroma of 2 or 3 (1 or 2 moist). It is loam, clay loam, fine sandy loam, or sandy loam.
The Bt horizon has hue of 10YR or 2.5Y, value of 3 through 5 (2 through 4 moist), and chroma of 2 through 4 dry or moist. It is clay loam or loam.
The Bk horizon has hue of 10YR or 2.5Y; value of 4, 5, or 6 dry (3 through 5 moist); and chroma of 2 through 4 dry or moist. It is clay loam, loam, sandy loam or fine sandy loam. Some pedons have a BC horizon. Some pedons have a C horizon.
The 2C horizon has hue of 7.5YR, 10YR, or 2.5Y; value of 4 through 6 (4 or 5 moist); and chroma of 2 through 6 dry or moist. It is fine sand or sand. The 2C horizon contains as much as 10 percent coarse fragments.
COMPETING SERIES: There are no other series in the same family. Series in closely related families are the Bowbells and Flaxton series. Bowbells soils formed in glacial till and have loam or clay C horizons. Flaxton soils have more sand and less clay in the upper part of the solum.
GEOGRAPHIC SETTING: Brisbane soils are on nearly level to gently sloping upland benches of 3 to 6 square miles. Slope gradients range from 0 to 6 percent. These soils formed in loamy sediments over sandstone bedrock from which the cementing agent has been removed by weathering. Mean annual temperatures range from 38 to 45 degrees F, and mean annual precipitation ranges from 12 to 16 inches. Most of the moisture falls in the spring and summer.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Amor, Arnegard, Cabba, Daglum, Flasher, Grail, Heil, Parshall, Reeder, Regent, Shambo and Vebar series. Amor, Reeder, Regent, and Vebar soils commonly are on upland sideslopes. Amor and Vebar soils do not have an argillic horizon and Amor, Reeder, Regent, and Vebar soils have a thinner mollic epipedon. Arnegard and Grail soils are in swales and concave positions adjacent to Brisbane soils. Arnegard soils do not have an argillic horizon and Grail soils have a fine textured argillic horizon. Cabba and Flasher soils are on steep ridges and both are shallow to soft bedrock. Daglum soils are in nearby depressions and have a natric horizon. Heil soils are in enclosed depressions, are fine textured, and have a natric horizon. Parshall soils are coarse-loamy. Shambo soils lack sandy C horizons.
DRAINAGE AND PERMEABILITY: Well drained. Surface runoff is slow or medium. Permeability is moderate in the solum and rapid in the 2C horizon.
USE AND VEGETATION: Used for small grain, flax, hay, pasture and range. Native vegetation is blue grama, needleandthread, prairie junegrass, prairie sandreed, western wheatgrass and a variety of forbs.
DISTRIBUTION AND EXTENT: Southwestern North Dakota. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Denver, Colorado
SERIES ESTABLISHED: Grant County, North Dakota, 1985.
REMARKS: The Brisbane soils are separated from the soils previously mapped Watrous. Laboratory data is available for pedon S81ND017-7 and S79ND037-82. This soil is not considered prime farmland because the common crops are not grown 7 out of 10 years, fallow generally is practiced in alternate years.