Laserfiche WebLink
Bk--31 to 39 inches; very pale brown (10YR 7/3) sandy loam, brown (10YR 5/3) moist; massive; <br />soft, friable, slightly plastic; few medium, fine and very fine roots; slight effervescence, calcium <br />carbonate as few fine and medium soft masses; moderately alkaline (pH 8.0); abrupt smooth <br />boundary. (6 to 18 inches thick) <br />Cr--39 inches; slightly hard, slightly effervescent, argillaceous sandstone. <br />TYPE LOCATION: Campbell County, Wyoming; 1250 feet north and 1350 feet west of the southeast <br />comer of sec. 23, T. 42 N., R. 72 W. 43 degrees 35 minutes 45 seconds north latitude and 105 <br />degrees 28 minutes 5 seconds west longitude. <br />RANGE IN CHARACTERISTICS: Depth to soft sandstone ranges from 20 to 40 inches. Depth to <br />continuous carbonate accumulation ranges from 10 to 35 inches, and depth to the base of the argillic <br />horizon ranges from 10 to 35 inches. Coarse fragments range from 0 to 15 percent and are soft <br />sandstone channers or semirounded pebbles. The soil is dry in the moisture control section more than <br />half the time cumulative that the soil temperature at a depth of 20 inches is 41 degrees F. and is never <br />moist in some or all parts for as long as 60 consecutive days when the soil temperature at a depth of <br />20 inches is 41 degrees F., which occurs about April 21-27, but is dry in all parts of the moisture control <br />section for at least 60 consecutive days from July 15 to October 25 and for at least 90 cumulative days <br />during this period. The mean annual soil temperature is 47 to 53 degrees F., and the soil temperature <br />at a depth of 20 inches is 41 degrees F. or more for 175 to 192 days. EC ranges from 0 to 2 mmhos <br />throughout the profile. <br />The A horizon has hue of 2.5Y through 7.5YR, value of 4 through 6 dry, 3 through 5 moist, and chroma <br />of 2 through 4. Textures are typically sandy loam but may be sandy clay loam, fine sandy loam, very <br />fine sandy loam, or loam. Reaction is typically neutral or mildly alkaline but ranges to moderately <br />alkaline in some pedons. <br />The Bt horizon has hue of 2.5Y through 7.5YR, value of 4 through 6 dry, 3 through 5 moist, and chroma <br />of 2 through 4. In pedons where mollic colors are present in this horizon, the layer is too thin to meet <br />the requirements for a mollic epipedon. Texture is sandy clay loam with more than 35 percent fine sand <br />or coarser. Clay ranges from 20 to 35 percent. Reaction is typically mildly alkaline but may range from <br />neutral to moderately alkaline. <br />(Revised June 2008) Attachment 2.04.9-3-15