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� <br /> � HAMEL SERIES <br /> � The Hamel series ainsists of very deep, poorly drained and somewhat poorly drained soils that formed in slopc <br /> colluvium and glacial till on moraines. These soils have moderately slow permeahility. Their slopes range from 1 to <br /> 4 percent. Mean annual precipitation is about 28 inches. Mean annual air temperature is 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 a <br /> � 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 fine <br /> � subangular blocky structure; friable; common very fine roots; about 1 percent gravel; neutral; <br /> abrupt smooth boundary. <br /> A--10 to 16 inches; black (lOYR 2/1) loam, very dark gray (l 0YR 3/1) dry; weak very fine <br /> � subangular blocky structure; friable; common very fine roots; about 4 percent gravel; neutral; <br /> 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 4/2) dry; <br /> many fine prominent brown (7SYR 4/4) Fe coneentrations; moderate fine angular blocky <br /> structure; friable; common very fine roots; about 4 percent gravel; neutral; gradual wavy <br /> � boundary. (0 to 10 inches thick.) <br /> Btgl--24 to 40 inches; very dark grayish brown (2SY 3/2) clay loam, grayish brown (lOYR 5/2) <br /> � dry; many fine prominent brown (7.SYR 4/4) Fe concentrations; moderate medium prismatic <br /> structure; friable; few black (lOYR 2/1) clay films on faces of peds; about 5 percent gravel; <br /> neutral; gradual wavy boundary. <br /> ' Btg2--40 to 46 inches; dark grayish brown (2.SY 4/2) clay loam; many coarse prominent brown <br /> (7.SYR 4/4) Fe concentrations; moderate medium subangular blocky structure; friable; few black <br /> � (lOYR 2/1) clay films on faces of peds; about 4 percent gravel; neutral; clear wavy boundary. <br /> (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 brown <br /> (lOYR 5/6) Fe concentrations; massive; friable; about 3 percent gravel; slightly effervescent; <br /> slightly alkaline; gradual wavy boundary. <br /> � Cg2--55 to 80 inches; olive gray (SY 5/2) loam; many medium prominent yellowish brown <br /> (lOYR 5/6) Fe concentrations; massive; friable; about 4 percent gravel; slightly effervescent; <br /> slightly alkaline. <br /> � TYPE LOCATION: Wright County, Minnesota; about 1.5 miles southwest of Silver Creek, <br /> 1200 feet south and 2300 feet west of the northeast corner of Sec. 18, T.121 N., R.26 W., USGS <br /> � Annandale quadrangle; lat. 45 degrees 17 minutes 34 seconds N.; long. 94 degrees 00 minutes 13 <br /> seconds W., NAD27 <br /> � <br /> ' <br /> � <br />