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HAYDEN SERIES <br />TIh: Hjydcn v:ric» nl deep «k-eU JrjineJ vnU itut turmed ta tjU.arei»u^ liuniy jI till on <br />morjinen and nil plain* Thc*c miiI* ha*e nunkroic pcrtneahility Their »lope« tan^e irom 2 In •»') percent <br />Mean annual prctir'ialinn i» about 2.S lachc*. and mean annual icmpcraiurc •» about 46 decree* F <br />TAXONOMIC CLASS: Finc-Ioamy. mixed, superaettve. mc.MC GIosmc Hapludalfs <br />TYPICAL PEDON: Hayden loam with a 6 percent conxc.x Nlopc on a terminal moraine <br />in a deciduous forest (Colors are for moist soil unless otherwise noted ) <br />A-0 to 2 inches, very dark gray (lOYR 3/1) loam, weak fine granular structure, very <br />friable; about 5 percent coarse fragments, neutral, abrupt smooth boundary. (1 to 4 inches <br />thick) <br />E-2 to 9 inches, dark grayish brown (lOYR 4/2) light loam; weak thin pl.ity stmciuic; <br />very friable; few very dark gray (lOYR 3/1) woim casts in upper p.irt; about 5 percent <br />coarse fragments; slightly acid; clear wavy boundary'. (0 to 12 inches thick) <br />BE-9 to 14 ir.whes. brown (lOYR 5/3) fine sandy loam; weak fine and medium <br />subangular blocky structure; friable; many distinct coatings of clc.in sand and silt <br />particles on faces of peds; about 5 percent coarse fragments; medium acid; clear wavy <br />boundary. (0 to 8 inches thick) <br />Btl"14 to 28 inches; yellowish brown (lOYR 5/4) loam; moderate fine and medium <br />subangular blocky structure; firm; few faint coatings of clean sand and silt particles and <br />few faint dark yellowish brown (lOYR 4/4) clay flints on faces of peds; about 5 percent <br />coarse fragments; strongly acid; clear wavy boundary <br />BI2-28 to 38 inches; yellowish brown (lOYR 5/4) loam, moderate fine and medium <br />prismatic structure parting to moderate fine and medium angular blocky; firm; many <br />distinct dark yellowish brown (lOYR 4/4) clay films on faces of peds; about 5 percent <br />coarse fragments, few prominent black clayey fillings in root channels; strongly acid; <br />clear wavy boundary. <br />Bt3-3S to 43 inches; yellowish brown (lOYR 5/4) loam; few fine prominent reddish <br />brown mottles; moderate fine and medium prismatic structure; friable; few distinct dark <br />yellowish brow n (lOYR 3/4) clay films on faces of peds; about 5 percent course <br />fragments; slightly acid; abrupt wavy boundary. (Combined thickness of Bt horizons is <br />12 to 30 inches.) <br />C-43 to 60 inches; light olive brown (2.5Y 5/4) loam; few fine faint grayish brown <br />(2 5Y 5/2) and light olive brown (2.5Y 5/6) mottles; massive; friable, and 5 percent <br />coarse fragments; slight effervescence; mildly alkaline. <br />TYPE LOCATION; Rice County, Minnesota; about 4 miles north of Faribault; 1.920 feet <br />cast and 30 feet north of the southwest comer of sec. I.T. 110 N.. R. 21 W.