|
LOGAN COUNTY, COLORADO 111
<br /> A11-0 to 3 inches; dark grayish brown OGYR 4;2) loam, very dark 1322t-13 to 19 inches; dark grayish brown (10YR 4/2)sandy clay loam,
<br /> grayish brown 00YR 3/2) moist;weak fine granular structure,soft, very dark grayish brown to dark brown 00YR 3/3)moist;moderate
<br /> very friable;calcareous,mildly alkaline(pH 7A); clear smooth bour.- medium prismatic parting to moderate medium subangular blocky
<br /> dary.(3 to 5 inches thick) structure;hard,friable;thin nearly continuous clay films on faces of
<br /> Al2-3 to 10 inches,grayish brown (10YR 512) loam, very dark grayish peds; neutral (pIl 7.2); gradual smooth boundary. (5 to 9 inches
<br /> brown QQYR 312)moist;weak medium subangu:ar blocky structure; thick)
<br /> slightly hard,very friable, calcareous; mildly alkaline (pH 7.8), clear B3-19 to 23 inches; grayish brown (10YR 6/2) sandy clay loam, dark
<br /> smooth boundary.(7 to 12 inches thick) grayish brown (10YR 4/2) moist; weak medium prismatic structure;
<br /> AC -10 to 17 inches; light brownish gray 00YR 6,12)loam,dark grayish hard, friable; thin,, patchy clay films; mildly alkaline (pH 7.6);
<br /> brown(10YR 4;2)moist;weak medium subangular Vocky structure; gradual smooth boundary.(2 to 5 inches thick)
<br /> slightly hard, very friable, calcareous,moderately alka'ine (pH 8.0); Clea-23 to 30 inches; light brownish gray (10YR 6/2)sandy clay foam,
<br /> clear smooth boundary.(5 to 9 inches thick) grayish brown (10YR 5/2) moat; massive; hard, friable, 10 percent
<br /> Clca--17 to 22 inches: light gray(10YR 712)loam,grayish brown 00YR lime coated gravel; calcareous with lime occurring as concretions
<br /> 5/2) moist, with few fine prominent mottles of light olive brown and as thin seams and streaks; moderately alkaline (pH 8.2); clear
<br /> (2.5Y 5i6) moist; massive, hard, friable; calcareous moderately al- smooth boundary.
<br /> kaline(pH 8.4);gradual smooth boundary.(5 to 12 inches thick) IIC2-30 to 60 inches; light brown (7.5YR 6/4) coarse sand and gravel,
<br /> C2g-22 to 27 inches, light gray (2.5Y 712) fine sandy loam, grayish brown (7.5YR 5/4)moist; massive;soft, very friable; moderately al-
<br /> brown (2.5Y 5/2) molt, with common fine prominent mottles of kahne(pH 8.2).
<br /> light olive brown(2.5Y 516)and dark brown(7.5YR 4/4)moist;mas- Thickness of solum ranges from 16 to 30 inches. Depth to coarse sand
<br /> sive; hard, very friable; calcareous: moderately alkaline (pH 82); and gravel ranges from 20 to 40 inches.Coarse
<br /> clear smooth boundary.(4 to 8 inches thick) gt g fragments range from 0
<br /> C3g-27 to 34 inches; light yellowish brown(25Y 6W loamy sand, light to 15 percent throughout the solum.
<br /> olive brown (25Y 514) moist, with many medium prominent mottles The A horizon has color value of 4 or 5 dry,2 or 3 moist,and chroma
<br /> of fight olive brown (2.5Y 5)6) and yellowish brown (10YR 518) of 2 or 3. It is commonly a sandy loam but ranges to loam.The texture
<br /> moat; massive, hard, very friable; calcareous; mildly alkaline (pH of the 132t horizon is dominantly sandy clay loam,clay loam,or loam but
<br /> 7.8);gradual smooth boundary ranges to heavy sandy loam.
<br /> IIC4g-34 to 60 inches; light gray (2,5Y 712) coarse sand and gravel, Arvada Series
<br /> light brownish gray (2.5Y 6/2) moist; single grained: locse dry and
<br /> moist;neutral(pll 7.3). The Arvada series consist_-, of deep, well drained soils
<br /> Depth to underlying sand and gravel ranges from 20 to 40 inches.The that formed in calcareous, eolian and alluvial materials
<br /> water table fluctuates from 20 inches to below 60 inches. derived from sedimetary rocks. Arvada soils are on
<br /> The A horizon has 10YR hue, value of 4 or 5 dry, 2 or 3 moist and upland alluvial fans and in swales and depressions. Slopes
<br /> chroma of 2 or 3.It is a loam or sandy loam.The C horizon is stratified. are 0 t0 3 percent. Average annual precipitation ranges
<br /> It is commonly a loam,but ranges from loam to loamy Bard. from 13 to 17 inches and the mean annual temperature is
<br /> Alt-van Series about 48 degrees F.
<br /> Arvada soils are similar to the Manzanola soils. They
<br /> The Altvan series consists of deep, well drained soils are near the Manzanola and Mitchell soils. Manzanola soils
<br /> that formed in calcareous loamy eolian and alluvial lack the strongly alkaline subsoil. Mitchell soils lack B2t
<br /> materials underlain by coarse sand and gravel. Altvan horizons.
<br /> soils are on upland ridges, knobs and valley sides. Slopes A typical pedon of Arvada silt loam is located 580 feet
<br /> are 3 to 25 percent. Average annual precipitation ranges south and 260 feet west of the north quarter corner of
<br /> from 15 to 19 inches and mean annual temperature is section 22, T.11N., R.54W.
<br /> about 48 degrees F.
<br /> Altvan soils are similar to Ascalon and Dacono soils. Al-11 to 2 inches; light brownish gray (10YR 6/2) silt loam, very dark
<br /> They are near the Eckley, Dacono, Dix, and Wages soils, grayish brown 00YR 3/2) moist; weak fine granular structure;
<br /> slightly hard, very friable; mildly alkaline (pH 7.4); clear smooth
<br /> Ascalon and Wages soils lack sand and gravel within boundary.(0 to 4 inches thick)
<br /> depths of 40 inches. Dacono sails have clay loam and clay A2-2 to 4 inches; light brownish gray QOYR 6/2) silt loam, dark gray-
<br /> 132t horizons. Eckley and Dix soils have sand and gravel ish brown 00YR 412)moist; weak medium subangular blocky strue-
<br /> at depths of less than 20 inches. tore; slightly hard, friable; mildly alkaline (pH 7.4); abrupt smooth
<br /> boundary.(1 to 4 inches thick)
<br /> A typical pedon of Altvan sandy loam is located 300 B21t-4 to 7 inches; grayish brown (10YR 5/2) heavy silty clay loam,
<br /> feet south and 800 feet west of the north quarter corner dark grayish brown (10YR 4/2) moist; moderate medium prismatic
<br /> of section 17, TAIN., R.52W. parting to moderate medium subangular blocky structure; very
<br /> hard, firm; thin, nearly continuous clay films on faces of peds; cal-
<br /> Ai--O to 5 inches; dark grayish brown (10YR 4/2) sandy loam, very careous; strongly alkaline (pH 9.0); clear smooth boundary. (3 to 5
<br /> dark brown (IOYR 2I2) moist; weak fine granular structure; hard, inches thick)
<br /> very friable;neutral(pH 7.0),clear smooth boundary.(4 to 9 inches B22t-7 to 11 inches; light brownish gray (10YR 612) silty clay loam,
<br /> thick) grayish brown (10YR 5/2) moist; moderate medium prismatic part-
<br /> B1-5 to 8 inches; dark gray (IOYR 4/1) sandy loam, very dark brown ing to moderate medium subangular blocky structure; hard, friable;
<br /> GOYR 212) moist, weak coarse subangular blocky structure, bard, thin nearly continuous clay films on faces of peds; calcareous; very
<br /> very friable; very thin patchy clay films on faces of peds; neutral strongly alkaline(pH 92); gradual smooth boundary. (3 to 8 inches
<br /> (pH 7.0);clear smooth boundary.(2 to 5 inches thick) thick)
<br /> B21t--8 to 13 inches;dark grayish brown(10YR 4/2)heavy sandy loam, Baca—ll to 15 inches; fight gray (IOYR 712) silt loam, light brownish
<br /> very dark grayish brown(10YR Mr2)moist; weak medium prismatic gray (10YR 6/2)moist; weak medium prismatic structure; hard, fri-
<br /> structure;hard,friable; very thin.patchy clay films on faces of peds, able; thin patchy clay films on faces of peds; calcareous, lime accu-
<br /> neutral(pH 72),clear smooth boundary.(4 to 7 inches thick) mulatiors occur as concretions and thin seams and streaks; very
<br />
|