Laserfiche WebLink
I <br /> � � <br /> _ �- LESTER SERIES <br /> 'Thc Lester s�ries consists of very deep, well drained soils that formed in calcareous loamy glacis!till on tilf <br /> , plains and moraines.These soils have moderate permeability.Their slopes range from S to 70 percent. <br /> Mean annual precipitation is about 28 inches,Mean Annual temperature is about 47 degrees F. <br /> TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Mollic Hapludalfs <br /> TYPICAL PEDON: Lester loam with a convex slope of about 9 percent on a ground <br /> moraine in a culEivated field. (Colors are for moist soil nnless otherwise noted.) <br /> Ap--O to 7 inches; very dark grayish brown (lOYR 3/2} loam, grayish brown (lOYR 5/2) <br /> dry; moderate fine subangular blocky structure; friable; many fine roots; about 3 percenE <br /> _ gravel; slightly acid; abrupt smooeh boundary. (6 to 10 inches thick) <br /> Bt1--7 to 21 inches; brown (lOYR 4/3} clay loam; moderate medium subangnlar blocky <br /> structure; firm; many very fine roots; common very dark grayish brown (lOYR 3/2}clay <br /> films on faces of peds and few very dark gray(1QYR 3/1)organic coats on faces of peds; <br /> abou[2 percent gravel; slightly acid; clear smooth boundary. <br /> ; <br /> , Bt2--21 to 38 inches; dark yellowish brown (lOYR 4/4) clay loam; moderate medium <br /> subangular blocky structure; friable;common�ne roo�s; common dazk grayish brown <br /> (lOYR 4/2)clay films on faces of peds and few very dazk brown (lOYR 2/2) organic <br /> coats on faces of peds; abo�t 3 percent gravel; slightly acid; gradual smooth boundary. <br /> (Comhined Bt horizon is 10 to 44 inches.) <br /> BkZ--38 to 50 inches; yellowish brown (1QYR 5/4) loam; weak tnedittm subangular <br /> blocky structure; friable; few fine roots; common very pale brow� (1(}YR 8/2} carbonate <br /> threads; about 2 percent gravel; violently effezvescent; siightly alkaline; clear wavy ' <br /> . bou'ndary. . <br /> " Bk2--50 to 60 inches; yellowish brown (l0YR�5/4) loam; weak medium subangular <br /> blocky structure; friable; common fine distinet yellowish brown (IOYR 5/6)relict Fe <br /> concentrations; common very paie brown (1QYR 8/2) carbonate threads; about 2 percent <br /> y�` grayel; violentIy effervescent; slightly alkaline; clear wavy houndary.r <br /> : C--60 to 80 inches; yellowish brown (1aI'R 5/4} loam; ; massive; fnable; common <br /> medium dzstinct yellowish brown (lOYR 5/6) relict Fe concentrations and few fine <br /> - distinct iight hrownish gray (lOYR 6/2}relict Fe depletions; about l.percent gravel; <br /> strongly effervescent; siightly alkaline. <br /> _ TYPE LOCATION: Wright County, Minnesota; about 3 miles west of Otsego, 1460 <br /> feet south and 200 feet west of the northeast corner of Sec. 15,T.121 N., R24 W.; USGS <br /> Big,Lake quadrartgle; lat. 45 degrees 17 minutes 29 seconds N.; long. 93 degrees 41 <br /> _ minutes 3 seconds W., NAD27 <br /> RANGE IN CHARA,CTERISTTCS: Depth to free carbonates ranges from 20 to 54 <br /> inches. Rock fragments of mixed lithology comprise 1 to 8 percent of the voluxne of the <br /> control section. <br />