LOCATION JESBEL CAEstablished Series
TAXONOMIC CLASS: Fine, smectitic, thermic Petrocalcic Palexeralfs
SOIL PROFILE: Jesbel gravelly clay loam (undisturbed site in a range pasture)
A1--0 to 5 inches; Dark grayish brown (10YR 4/2) gravelly clay loam, very dark grayish brown (10YR 3/2) moist; weak fine granular structure; hard, firm; numerous fine roots; moderately porous, moderately low in organic matter; neutral (pH 7.2); clear, smooth boundary. 3 to 6 inches thick.
A3--5 to 14 inches; Similar to above but much lower in organic matter, nearly massive dry, very weak fine granular structure moist; roots less numerous, many very fine pores; neutral (pH 6.8); abrupt, smooth lower boundary. 6 to 10 inches thick,
B2--14 to 24 inches; Dark brown (7.5YR 4/4) gravelly light clay, dark brown (7.5YR 3/4) moist; strong medium blocky structure; very hard, very firm; moderate continuous clay films, few fine roots, few very fine pores; neutral (pH 7.1); abrupt, slightly wavy boundary. 8 to 14 inches thick.
Ccam--24 to 33 inches; White (10YR 8/2) dry and light gray (10YR 7/2) moist, gravelly strongly lime-cemented caliche hardpan; abrupt slightly wavy boundary; 6 to 15 inches thick.
C2--33 to 42 inches; Brown (10YR 5/3) gravelly sandy loam, dark brown (10YR 4/3) moist; massive; slightly hard, very friable; mildly alkaline (pH 7.7); moderately calcareous; gravel content increases with depth.
RANGE IN CHARACTERISTICS: The soils always contain gravel but in some areas not enough is found in the surface horizon to warrant mapping of a gravelly type. Usually the hardpan is encountered between 18 and 30 inches.
TOPOGRAPHY: Undulating to gently sloping, mostly 0 to 3 percent slopes, but locally up to 8 percent.
DRAINAGE AND PERMEABILITY: General drainage is good. Surface runoff is slow to medium; permeability is very slow, being restricted by both the claypan and hardpan.
VEGETATION: Annual grasses and herbs.
USE: Range and dry farmed grain.
DISTRIBUTION: On short local old alluvial fan terraces adjacent to Mariposa formation in the foothills of the Sierra Nevada Mountains.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Madera County, California, 1959. (Source of name is a Southern Pacific Railway siding in Madera County.)
TYPE LOCATION: Madera County, California; SW 1/4 SW 1/4 Sec. 16, T.9S., R.18E.
OSED scanned by SSQA. Last revised by state on 1/6/59.