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I � <br /> 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 I 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--0 to 10 inches;black(10YR 2/1) loam, very dark brown (10YR 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(10YR 2/I) loam,very dark gray(10YR 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(10YR 3/1)clay loam,dark grayish brown(IOYR <br /> 4/2)dry;many fine prominent brown (7.5YR 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(2.5Y 3/2)clay loam, grayish brown <br /> (10YR 5/2)dry; many fine prominent brown (7.5YR 4/4) Fe concentrations; moderate <br /> medium prismatic structure; friable; few black(10YR 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(2.5Y 4/2)clay loam; many coarse prominent <br /> brown(7.5YR 4/4)Fe concentrations;moderate medium subangular blocky structure; <br /> friable; few black(10YR 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 /> CgI--46 to 55 inches;olive gray(5Y 5/2)loam; many medium prominent yellowish <br /> brown(IOYR 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(5Y 5/2) loam;many medium prominent yellowish <br /> brown(IOYR 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 />