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HAMEL SERIES <br /> The Hamel series consists of very deep,poorly drained and somewhat poorly drained soils that formed in <br /> slope colluvium and glacial till on moraines.These soils have moderately slow permeability.Their slopes <br /> range from 1 to 4 percent.Mean annual precipitation is about 28 inches.Mean annual air temperature is <br /> about 47 degrees F. <br /> TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Typic Argiaquolls <br /> TYPICAL PEDON: Hamel loam with a 2 percent concave slope on a glacial moraine in <br /> a cultivated field. (Colors are for moist soil unless otherwise noted.) <br /> Ap--O to 10 inches; black(lOYR 2/1) loam, very dark brown (lOYR 2/2) dry; weak very <br /> fine subangular blocky structure; friable; common very fine roots; about 1 percent gravel; <br /> neutral; abrupt smooth boundary. <br /> A--10 to 16 inches; black (l 0YR 2/1) loam, very dark gray(l 0YR 3/1)dry; weak very <br /> fine subangular blocky structure; friable; common very fine roots; about 4 percent gravel; <br /> neutral; gradual smooth boundary. (Combined thickness of A horizon is 14 to 30 inches.) <br /> AB--16 to 24 inches; very dark gray(lOYR 3/1) clay loam, dark grayish brown(lOYR <br /> 4/2) dry;many fine prominent brown(7.SYR 4/4) Fe concentrations; moderate fine <br /> angular blocky structure; friable; common very fine roots; about 4 percent gravel; neutral; <br /> gradual wavy boundary. (0 to 10 inches thick.) <br /> Btgl--24 to 40 inches; very dark grayish brown(2.SY 3/2) clay loam, grayish brown <br /> (lOYR 5/2) dry; many fine prominent brown(7.SYR 4/4) Fe concentrations; moderate <br /> medium prismatic structure; friable; few black(lOYR 2/1) clay films on faces of peds; <br /> about 5 percent gravel; neutral; gradual wavy boundary. <br /> Btg2--40 to 46 inches; dark grayish brown(2.SY 4/2) clay loam;many coarse prominent <br /> brown(7.SYR 4/4) Fe concentrations; moderate medium subangular blocky structure; <br /> friable; few black(1 OYR 2/1) clay films on faces of peds; about 4 percent gravel; neutral; <br /> clear wavy boundary. (Combined thickness of Btg horizons is 12 to 30 inches.) <br /> Cg1--46 to 55 inches; olive gray(SY 5/2) loam; many medium prominent yellowish <br /> brown (l 0YR 5/6)Fe concentrations; massive; friable; about 3 percent gravel; slightly <br /> effervescent; slightly alkaline; gradual wavy boundary. <br /> Cg2--55 to 80 inches; olive gray(SY 5/2) loam; many medium prominent yellowish <br /> brown(lOYR 5/6) Fe concentrations; massive; friable; about 4 percent gravel; slightly <br /> effervescent; slightly alkaline. <br /> TYPE LOCATION: Wright County, Minnesota; about 1.5 miles southwest of Silver <br /> Creek, 1200 feet south and 2300 feet west of the northeast corner of Sec. 18, T.121 N., <br /> R.26 W., USGS Annandale quadrangle; lat. 45 degrees 17 minutes 34 seconds N.; long. <br /> 94 degrees 00 minutes 13 seconds W., NAD27 <br />