LOCATION LYNNDYL UTEstablished Series
TAXONOMIC CLASS: Sandy, mixed, mesic Typic Haplocalcids
TYPICAL PEDON: Lynndyl loamy sand--rangeland. (Colors are for air-dry soil unless otherwise stated.)
A--0 to 5 inches; light gray (10YR 7/2) loamy sand, grayish brown (10YR 5/2) moist; weak thin platy structure; soft, very friable; many very fine and fine roots; many very fine vesicular pores; 25 percent gravel on the surface, 5 percent gravel in the horizon; moderately effervescent; carbonates are disseminated; moderately alkaline (pH 8.2); clear smooth boundary. (3 to 6 inches thick)
Bk--5 to 14 inches; light gray (10YR 7/2) loamy sand, brown (10YR 5/3) moist; weak coarse subangular blocky structure; soft, very friable; many very fine and fine, few coarse roots; many very fine and fine tubular pores; 5 percent gravel; strongly effervescent; carbonates are visible, soft powdery accumulations in the soil matrix and in few fine veins; strongly alkaline (pH 8.6); gradual smooth boundary. (3 to 14 inches thick)
C--14 to 36 inches; light gray (10YR 7/2) loamy sand, brown (10YR 5/3) moist; massive; loose; common very fine roots; many very fine irregular pores; 5 percent gravel; moderately effervescent; carbonates are disseminated; very strongly alkaline (pH 9.4) abrupt smooth boundary. (10 to 25 inches thick)
2C--36 to 40 inches; very pale brown (10YR 8/2) sandy loam, pale brown (10YR 6/3) moist; massive; soft, friable, slightly sticky and slightly plastic; moderately effervescent, carbonates are disseminated; very strongly alkaline (pH 9.6); abrupt smooth boundary. (0 to 14 inches thick)
3Cy--40 to 60 inches; light gray (10YR 7/1) loamy sand, grayish brown (10YR 5/2) moist; single grain; loose; few very fine roots; common very fine interstitial pores; common fine filaments of gypsum; moderately effervescent; carbonates are disseminated; moderately alkaline (pH 8.2).
TYPE LOCATION: Box Elder County, Utah; about 1.5 miles east of Lucin; 1,500 feet west and 500 feet north of the southeast corner of sec. 1 T. 7 N., R. 18 W.
RANGE IN CHARACTERISTICS:
Mean annual soil temperature: 47 to 52 degrees and the soil is usually dry for more than 90 consecutive days.
Particle-size control section (weighted average):
Texture: sand, loamy sand, and loamy fine sand
A horizon:
Value: 6 or 7 dry, 4 or 5 moist
Chroma: 2 to 4
Bk horizon:
Value: 6 or 7 dry, 5 or 6 moist
Chroma: 2 to 4
Texture: Sand, loamy sand or loamy fine sand
Effervescence: Moderately effervescent or strongly effervescent
Reaction: Moderately alkaline or strongly alkaline
C horizon:
Value: 6 to 8 dry, 4 to 6 moist
Chroma: 1 to 4
Texture: Commonly stratified with textures of loamy fine sand, loamy sand, sand, or sandy loam
Rock fragments: In individual subhorizons range from 0 to 60 percent
Reaction: Moderately alkaline to very strongly alkaline
COMPETING SERIES: These are the Denazar (NM), Sandbench (UT) and Tohatin (AZ) series. Denazar soils have bedrock at a depth of 40 to 60 inches. Sandbench soils have bedrock at a depth of 20 to 40 inches. Tohatin soils have hue 5YR and a mean annual soil temperature of 56 to 58 degrees F.
GEOGRAPHIC SETTING: Lynndyl soils are on fan skirts, beach bars, dunes, lake terraces and the alluvial lake plains of ancient Lake Bonneville at elevations of 4,200 to 5,900 feet. Slopes are 0 to 10 percent. The soils formed in eolian material or alluvium derived from mixed igneous and sedimentary rocks and lacustrine deposits. The mean annual soil temperature is 47 to 53 degrees F., the average annual precipitation is 4 to 8 inches. The average freeze-free period is 100 to 140 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Oasis, Skumpah family and Smaug family soils. These soils lack horizons of secondary lime accumulation. Skumpah family soils have a fine-silty particle-size control section. Oasis and Skumpah family soils are sodium affected.
DRAINAGE AND PERMEABILITY: Somewhat excessively drained; low runoff; rapid permeability.
USE AND VEGETATION: Used mainly for rangeland and wildlife habitat. Potential vegetation is galleta, fourwing saltbush, Indian ricegrass, winterfat, and bottlebrush squirreltail.
DISTRIBUTION AND EXTENT: West central and north western Utah. The soil is not extensive. MLRA 28A.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Millard County (Delta area), Utah, 1919.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon: The zone from the surface of the soil to 5 inches. (A horizon)
Calcic horizon: The zone of calcium carbonate accumulation from 4 to 14 inches. (Bk horizon)
In Utah this series is correlated with Desert range sites.
The classification was changed from Typic Calciorthids to Typic Haplocalcids in June 1994.