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I Q q i IB IB m q q Onicial Series Description - HAYDEN Series feet north of the southwest corner of sec. 1. T. 110 N.^R. 21 W. Pago 2 of 3 Q| H RANGE IN CHARACTERISTICS: Solum thickness and depth to free carbonates range from 24 to 34 inches. Coarse fragments of mixed lithology comprise 2 to 8 percent of the volume of the control section. The A horizon has hue of lOYR, value of 2 or 3, and chroma of I or 2. The Ap horizon has value of 4 or 5 and chroma of 1 or 2 and value of 6 when dry. The E horizon has hue of IOYR. value of 4 or 5. and chroma of 1 or 2. The A and E horizons typically are loam, silt loam, sandy loam, or fine sandy loam, but include clay loam, if eroded. They are neutral to medium acid. The Bt horizon has hue of lOYR in the upper part and lOYR or 2.5Y in the lower part, value of 4 or 5, and chroma of 3 through 5. Mottles are present in the lower .^ubhorizons in some pedons. It typically is clay loam or loam, but sandy clay loam is in parts in some pedons. The argillic horizon has 18 to 35 percent clay and 30 to 45 percent sand. It is slightly acid to strongly acid. Some pedons have a BC horizon. The C horizon has a hue of lOYR or 2.5Y, value of 4 or 5, and chroma of 3 through 6. It is loam or clay loam. It lacks mottles in some pedons. It has 15 to 25 percent calcium carbonate equivalent and is mildly or moderately alkalikne. COMPETING SERIES: These are the Aman da. Belmont. Belmore. Chenault . Chili. QsggfiQ. Conestoga. Douds. El Para . Gallman . Grcllton. Hebron. Hickory. High Gap. Hollinge_r. Kalamazoo . Kanawha . Kendallville. Kidder. Kosciusko. LeRov. Letort. Lind lev. McHenry. Mandeville. Martinsville. Miami . Mifflin. Military . Nodine. Norden. Qsklsy. Qwosso. Pecatonica . Princeton. Rawson . Relay . Renova. Richland . Riddles. Rockbridge. Roseville, Sisson. Strawn . Summitville. Teanawa v. Theresa . Wawasee . Westville. Whala n. and Woodbine soils in the same family. Amanda horizon soils have more illite in the B and C ho. ‘zon; Belmont soils have redder hue in the B horizon. Belmore, Chili, Kalamazoo, and Ockley soils formed in glacial outwash and have sandy or sandy- skeletal 2C horizons. Chenault soils have chert fragments in the solum and are underlaid by limestone bedrock. Coggon, Gallman, Hickory, Pecatonica, Renova, Riddles, Summitville, and Westvillc soils have thicker sola. In addition, Coggon soils have low chroma mottles in part of the B2 horizon Conestoga, Kendallville, Letort, Richland, and Rockbridge soils have more coarse fragments. Douds, El Dara, Kidder, Sisson, and Wawasee soils have less clay and more sand or silt in the lower part of the B horizon and in the C horizon. High Gap, Hollingcr, Mandeville, Mifflin, Military, Norden, Roseville, Whalan, and Woodbine soils have bedrock beginning between depths of 20 and 60 inches. Grellton, Hebron, Lindley, and Rawson soils have more silt or clay or both in either the lower part of the B horizon or C horizon or both. Kanawha soils are formed in alluvium from acid shale and are in an area of higher rainfall. LeRoy and Strawn soils have thinner sola. McHenry and Miami soils have more silt or clay, or both in the upper part of the solum. Martinsville soils have redder hue in the B horizon and formed in stratified outwash or lacustrine sediments. Nodine soils have thicker sola which is more stratified and leached of free carbonates to greater depths. Owosso soils have more szind and less silt or clay in the upper part of their sola. Princeton soils formed in aeolian sediments and have stratified C horizons. Relay soils have hue of 2.5Y or 5Y in all parts of the B horizon. Teanaway soils have firm sandy clay loam C horizons with redder hue. Theresa soils fo:med partly in loess and have 2C horizons with 40 to 60 percent calcium carbonate. GEOGRAPHIC SETTING: Hayden soils have plane or convex slopes on gently undulating through steep glacial moraines of the Des Moines and Grantsburg sublobe of the Late Wisconsinan glaciation. Their slopes range from 2 to 40 percent and mostly aie 80 to 300 feet in length. These soils formed in calcareous loamy glacial till. Montmorillonite is the dominant clay mineral in the glacial till. Mean http://ortho.ftw. nrcs.usda.gov/cgi-bin/o*‘.d/osdname.cgi?-P 9/14/2004