|
us
<br />SOIL SURVEY
<br />deposits of the Ogallala Formation. Eckley soils are on
<br />upland ridges and knobs and have slopes of 5 to 13 per-
<br />cent. Average annual precipitation ranges from 15 to 19
<br />inches and mean annual temperature is about 49 degrees
<br />F.
<br />The Eckley lolls are similar to the Altvan soils. They
<br />are near the Altvan, Dix and Dacono soils. Altvan and
<br />Dacono soils have sand and gravel at depths between 20
<br />and 40 inchee Dix soils have B2 horizons with weak
<br />grades of structure.
<br />A typical pedan of Eckley sandy loam is located 1,600
<br />feet west and 15 feet north of the southeast corner of
<br />section 11, T.7N., R51W.
<br />Al-0 to 3 inches; dark grayish brown (lOYR 4!2) sandy loam, very
<br />dark grayish brown (lOYR 312) moist; weak fine granular atruMure;
<br />soft, very friable; neutral (pH 7.0); clear smooth boundary. (3 to 5
<br />inchee thick)
<br />B1-3 to 6 inchee; dark grayish browo (lOYR 4l2) gravelly eaady clay
<br />loam, very dark grayish brown (lOYR 312) moist; moderate medium
<br />prismatic parting to moderate medium subangulaz blocky structure;
<br />slightly hard, friable; neutral (pH 7.0); clear smooth boundary. (2 to
<br />4 inchee thick)
<br />B2t-6 to 15 inches; dark brown (7SYR 4/2) gravelly sandy clay loam,
<br />dark brown (7SYR 3l2) moist; moderate coarse prismatic parting to
<br />moderate coarse subangular blocky structure; hard, firm; thick con-
<br />tinuous clay fins on face of pede; neutral (pH 72); clear wavy
<br />boundary. (5 to 10 inches thick)
<br />B3-15 to ZO inches; brown (7SYR 5/4) gravelly coarse sandy loam, dark
<br />brown (7.bYR 9/4) moist; weak coarse prismatic structure; hard,
<br />very friable; neutral (pH 72Y, gradual wavy boundary. (3 to 5 inches
<br />thkk)
<br />IICI-20 to 43 inchee; Bght brown (7SYR 6/4) gravelly loamy costae
<br />Band, dark brown (7SYR 9l4) moist; massive; hard, very friable;
<br />mildly alkaline (pH 7.4); gradual wavy boundary.
<br />IIC2-43 to 60 inchee; tight brown (7SYR 6/4) masse sand and gravel,
<br />brown (7SYR 514) moist; single grained; loose, dry and insist; wl-
<br />careona with come gravel lime coated mainly on the underside;
<br />mildly alkaline (pH 7.6).
<br />Depth to the mntreating IIC horizon ranges from 12 to 20 inchee.
<br />These soils are commonly noncalcazeou& but some pedons have weak ac-
<br />cumulations of calcium carbonate below depths of 40 inches.
<br />The A horizon has color value of 4 or b dry, 2 or 3 moist, and chrome
<br />oP 2 or 3. it is a gravelly sandy loam or gravelly loam. Tke B2t horizon
<br />hoe a hue of lOYR or 75YR.
<br />Eh; Series
<br />The Eh) series consists of deep, somewhat poorly
<br />drained soils formed in alluvium overlying sand and
<br />gravel ELg soils are on low terraces and bottomlanda of
<br />the South PLttte River and have slopes of 0 to 1 percent.
<br />Average annual precipitation ranges from 13 to 19 inchee
<br />and mean annual temperature is about 48 degrees F.
<br />Els soils are similar to the Alda so17s. They are near the
<br />Aida and Westphtin soils. Aida and Westplain soils have
<br />dark surface layers with moist color values of 3 or less.
<br />A typical pedon of Els loamy sand is located 1,150 feet
<br />east and 225 feet north of the southwest corner of sec. 16,
<br />T.lON., R.49W.
<br />AI-0 W a inches; grayish brown (lOYR 5/2) loamy sand, very dark
<br />grayish brown (IOYR 3l2) moist; weak fine granular structure; soft,
<br />very friable; neutral (pH 7.0); clear smooth boundary. (4 to 7 inches
<br />thick)
<br />ACI-6 to l3 inches; light brownish gny (lOYR 6/2) loamy fine sand,
<br />dark grayish brown (lOYR 412) moist; weak costae aubangular
<br />blocky structure; soft, very friable; neutral (pH 7.0); gradual smooth
<br />boundary. (5 to 8 inches thick)
<br />AC2-t3 to 17 inchee; light brownish gray (lOYR 6/2) loamy fine sand,
<br />dark grayish brown (lOYR 4/E) moist; massive; soft, very friable;
<br />ealcareous• mildly alkaline (pH 7.4); clear smooth boundary. (4 to 8
<br />inches thick)
<br />Clca-17 to 25 inchee; light gray (lOYR 7/2) bamy fine sand, grayish
<br />brown (lOYR 512) moist; massive; soft, very friable; calcareous;
<br />mildly alkaline (pH 7.4); clear smooth boundary. (7 to 10 inches
<br />thick)
<br />C2-25 to fS inches; light gray (25Y 7/2) loamy fine sand, with thin
<br />strata of silt loam, grayish brown (2SY b/2) moist, with common
<br />medium diatinM yellowish brown (lOYR 5/a) moist mottles; massive;
<br />soft, very friable; calcareous; mildly alkaane (pH 7.4); smooth boun-
<br />dary. (20 to 35 inches thick)
<br />IIC3-5a to 60 inches; brown (lOYR 5/3) moist with rnmmon medium
<br />brown (7SYR 519) moist mottles; mixture of coarse sand and
<br />gravel; single grained; loose, dry and moist; neutral (pH 72).
<br />Sand and gravel occurs below depths of 40 inches.
<br />The A horizon hoe a color value of 4 through 6 dry, 8 or 4 moist and
<br />chrome of 2 or S. Moist values of 3 extend to depths of leas than 7
<br />inchee. The A horizon is commonly x loamy fine sand but ranges Lo fine
<br />sand. The C horizon is a loamy fine sand or fine sand and is stratified.
<br />Epping Series
<br />The Epping aeries consists of shallow, well drained soils
<br />that formed hl calcareous materials weathered from Brule
<br />ailtatone. Epping soils are on upland ridges and have
<br />slopes of 3 to 9 percent. Average annual precipitation
<br />ranges from 13 to 17 inches and mean annual temperature
<br />is about 49 degrees F.
<br />Epping soils are simiLlr to the Canyon and Shingle
<br />soils. They are near the Keota and Mitchell lolls. Canyon
<br />soils have 15 to 36 percent costae fragments and formed
<br />in materials weathered from calcareous sandstone. Shin-
<br />gle soils formed in materials weathered from interbedded
<br />soft shale and sandstone. Keota and Mitchell lolls have
<br />bedrock at depths below 20 inches.
<br />A typit~l pedon of Epping loam is located 390 feet west
<br />and 38 feet north of the quarter comer, section 35,
<br />T.11N., R.52W.
<br />Al-0 to 3 inches; light brownish gray (lOYR a/2) loam, very dark gray-
<br />ish brown (lOYR 3/2) moist; weak fine subangubv blocky structure;
<br />eoft, very friable; calcareous; mildly alkaline (pH 7.4); clear smooth
<br />boundary. (3 to 5 inches thick)
<br />AC-3 to 7 inchee; very pale brown (lOYR 7/3) loam, dark grayish
<br />brown (lOYR 4/2) moist; weak medium prismatic atruMure; slightly
<br />hard, very friable; 5 percent weathered Brule eilfstone fragments;
<br />calcareous; moderately alkaline (pH 8.0); cleat smooth boundary. (4
<br />to 7 inches thick)
<br />Cca-7 to 11 inches; light gray (lOYR 7/2) loam, brown (lOYR 5f3)
<br />moist; massive; hard, very friable; 20 percent weathered fragments
<br />of Brole siltatone; calcareous with lime occurring as coneretiona and
<br />in thin seams and streaks; moderately aBtaline (pH 8.4); clear wavy
<br />boundary. (3 Lo 8 inchee thick)
<br />Cr-11 to 60 inches; very pale brown (lOYR al3) ailtstone of the Brule
<br />Formation, brown (lOYR 5/3) moist; calcareous.
<br />The depth to bedrock ranges from ]0 to 20 inchee. Fragments of par-
<br />tially weathered Brule ailtatone are common on the surface and
<br />throughout the soil wRh a range of 0 to 15 percent.
<br />The A horizon has a color value of 5 through 7 dry, 3 or 4 moist and
<br />chrome of 2 or 3. Moist values of 3 extend to depths of less than 5
<br />
|