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Orticial Series Description -I IA Yr '~N Series Page 2 of 3
<br />feet north of the southwest corner of sec. I. T. 110 N., R. 21 W.
<br />RANGE IN CHARACTERISTICS: Solum thickness and depth to free carbonates range from 24 to 54
<br />inches. Coarse fragments of mixed lithology comprise 2 to S-percent of the volume of the control
<br />section.
<br />The A horizon has hue of l 0YR, value of 2 or 3, and chroma of l or 2. The Ap horizon has value of 4 or
<br />5 and chroma of l or 2 and value of 6 when dry. The E horizon has hue of l 0YR, value of 4 or 5, and
<br />chroma of l or 2. The A and E horizons typically are loam, silt loam, sandy loam, or fine sandy loam,
<br />but include clay loam, if eroded. They are neutral to medium acid.
<br />The Bt horizon has hue of 1 0YR in the upper part and 1 0YR or 2.SY in the lower part, value of 4 or 5,
<br />and chroma of 3 through 5. Mottles are present in the lower subhorizons in some pedons. It typically is
<br />clay loam or loam, but sandy clay loam is in parts in some pedons. The argillic horizon has 18 to 3 5
<br />percent clay and 30 to 45 percent sand. It is slightly acid to strongly acid. Some pedons have a BC
<br />horizon.
<br />The C horizon has a hue of 1 0YR or 2.5Y, value of 4 or 5, and chroma of 3 through 6. It is loam or clay
<br />loam. It lacks mottles in some pedons. It has 15 to 25 percent calcium carbonate equivalent and is mildly
<br />or moderately alkalikne.
<br />COMPETING SERIES: These are the Amanda, Belmont, Belmore, Chenault, Chili, CoggQn,
<br />Conestog~, Douds, El Dara, Gallman, Grellton, Hebron, Hickory, High Gau, ~' Kalamazoo,
<br />Kanawha, Kendallville, Kidder, Kosciusko, LeRoy, Letort, Lindley, McHenry, Mandeville,
<br />Martinsville, Miami, Mifflin, Military, Nodine, Norden, Ockley, Owosso, Pecatonica, Princeton,
<br />Rawson, Relay, Renova, Richland, Riddles, Rockbridge, Roseville, Sisson, Strawn, Summitville,
<br />Teanaway, Theresa, Wawasee, Westville, Whalan, and Woodbine soils in the same family. Amanda
<br />horizon soils have more illite in the B and C horizon; Belmont soils have redder hue in the B horizon.
<br />Belmore, Chili, Kalamazoo, and Ockley soils formed in glacial outwash and have sandy or sandy-
<br />skeletal 2C horizons. Chenault soils have chert fragments in the solum and are Ul).derlaid by limestone
<br />bedrock. Coggon, Gallman, Hickory, Pecatonica, Renova, Riddles, Summitville, and Westville soils
<br />have thicker sola. In addition, Coggon soils have low chroma mottles in part of the B2 horizon.
<br />Conestoga, Kendallville, Letort, Richland, and Rockbridge soils have more coarse fragments. Douds, El
<br />Dara, Kidder, Sisson, and Wawasee soils have less clay and more sand or silt in the lower part of the B
<br />horizon and in the C horizon. High Gap, Hollinger, Mandeville, Mifflin, Military, Norden, Roseville,
<br />Whalan, and Woodbine soils have bedrock beginning between depths of 20 and 60 inches. Grell ton,
<br />Hebron, Lindley, and Rawson soils have more silt or clay or both in either the lower part of the B
<br />horizon or C horizon or both. Kanawha soils are formed in alluvium from acid shale and are in an area
<br />of higher rainfall. LeRoy and Strawn soils have thinner sola. McHenry and Miami soils have more silt or
<br />clay, or both in the upper part of the sol um. Martinsville soils have redder hue in the B horizon and
<br />formed in stratified outwash or lacustrine sediments. Nodine soils have thicker sola which is more
<br />stratified and leached of free carbonates to greater depths. Owosso soils have more sand and less silt or
<br />clay in the upper part of their sola. Princeton soils formed in aeolian sediments and have stratified C
<br />horizons. Relay soils have hue of2.5Y or SY in all parts of the B horizon. Teanaway soils have firm
<br />sandy clay loam C horizons with redder hue. Theresa soils formed partly in loess and have 2C horizons
<br />with 40 to 60 percent calcium carbonate.
<br />GEOGRAPHIC SETTING: Hayden soils have plane or convex slopes on gently undulating through
<br />steep glacial moraines of the Des Moines and Grantsburg sublobe of the Late Wisconsinan glaciation.
<br />Their slopes range from 2 to 40 percent and mostly are 80 to 300 feet in length. These soils formed in
<br />calcareous loamy glacial till. Montmorillonite is the dominant clay mineral in the glacial till. Mean
<br />http://ortho.ftw.nrcs.usda.gov/cgi-bin/osd/osdname.cgi?-P 9/14/2004
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