LOCATION ZINEB NVEstablished Series
TAXONOMIC CLASS: Loamy-skeletal, mixed, superactive, mesic Durinodic Xeric Haplocambids
TYPICAL PEDON: Zineb loam, rangeland. (Colors are for dry soil unless otherwise noted.)
A1--0 to 2 inches; grayish brown (10YR 5/2) gravelly loam,
very dark grayish brown (10YR 3/2) moist; moderate thin and medium platy structure; soft, very friable, slightly sticky and slightly plastic; many very fine roots; common very fine vesicular and
tubular pores; 15 percent pebbles; moderately alkaline (pH 8.4); abrupt smooth boundary. (2 to 4 inches thick)
A2--2 to 6 inches; pale brown (10YR 6/3) gravelly loam, dark brown (10YR 3/3) moist; moderate medium and thick platy structure; slightly hard, very friable, slightly sticky and slightly plastic; many very fine roots; common very fine, few fine tubular pores; 20 percent pebbles; moderately alkaline (pH 8.2); abrupt wavy
boundary. (2 to 5 inches thick)
Bw--6 to 13 inches; pale brown (10YR 6/3) gravelly loam, brown (10YR 4/3) moist; massive; slightly hard, very friable, slightly sticky and slightly plastic; common very fine, few fine and medium roots; common very fine tubular pores; 30 percent pebbles;
moderately alkaline (pH 8.2); clear wavy boundary. (6 to 9 inches thick)
Bq--13 to 19 inches; pale brown (10YR 6/3) very gravelly sandy loam, brown (10YR 4/3) moist; massive; slightly hard, very
friable, slightly sticky and slightly plastic; common very fine roots; common very fine tubular pores; 20 percent, 5 to 25 mm
strong durinodes; 25 percent discontinuous weak silica
cementation; 50 percent pebbles; moderately alkaline (pH 8.4);
clear wavy boundary. (5 to 8 inches thick)
2Bk1--19 to 27 inches; pale brown (10YR 6/3) extremely cobbly sandy loam, dark yellowish brown (10YR 4/4) moist; massive; soft, very friable, nonsticky and slightly plastic; common very fine,
few fine roots; common very fine tubular pores; 50 percent
cobbles, 35 percent pebbles, strongly effervescent; strongly
alkaline (pH 8.8); gradual smooth boundary. (7 to 12 inches
thick)
2Bk2--27 to 68 inches; variegated extremely cobbly coarse
sand; single grained; loose, nonsticky and nonplastic; few very
fine roots; thin silica laminae on a few pebbles; moderately thick lime coatings on underside of a few pebbles; few very weakly cemented, 1 to 5 mm thick horizontal seams of lime; 40 percent cobbles, 45 percent pebbles; violently effervescent; strongly alkaline (pH 9.0).
TYPE LOCATION: Eureka County, Nevada; about 4 miles south and 10 miles east of Crescent Valley, 1,500 feet west and 100 feet north
of the approximate southeast corner of section 24, T. 29 N., R. 49
E.
RANGE IN CHARACTERISTICS:
Soil moisture - Moist in the winter and spring, dry June through October.
Soil temperature - 47 to 52 degrees F.
Control section - Rock fragments: Average 50 to 75 percent,
pebbles are dominant in upper portion, and cobbles in lower
portion.
Depth to carbonates and 2Bk horizon - 16 to 26 inches.
Depth to Bq horizon - 10 to 18 inches.
Other features - Some pedons have unconformable loam textured subhorizons below 40 inches.
A horizon - Value: 5 or 6 dry; when mixed the upper 7 inches
have a dry value greater than 5.5.
Chroma: 2 or 3.
Bw horizon - Value: 3 or 4 moist.
Chroma: 3 or 4.
Structure: Subangular blocky or is massive.
Rock fragments: 15 to 35 percent, dominantly pebbles.
Texture: Gravelly loam or gravelly very fine sandy loam.
Bq horizon - Texture: Very gravelly loam or very gravelly sandy loam.
Rock fragments: 35 to 60 percent, dominantly pebbles.
Silica cementation: Discontinuous weak silica cementation and/or durinodes in a friable matrix.
2Bk or 2Bqk horizon - Texture: Extremely cobbly sandy loam in the upper part and extremely cobbly loamy coarse sand or extremely
cobbly coarse sand in the lower part.
Rock fragments: 60 to 80 percent, dominantly cobbles.
COMPETING SERIES: This is the
Mina series. Mina soils have a particle-size control section with 35 to 50 percent rock
fragments.
GEOGRAPHIC SETTING: Zineb soils are on inset fans, fan aprons and fan skirts. They formed in loamy alluvium from mixed rock sources with a small component of volcanic ash. Slopes are 0 to 15
percent. Elevations are 4,700 to 6,500 feet. The climate is
semiarid with warm, dry summers and cool, moist winters. The mean annual temperature is 45 to 48 degrees F.; mean annual
precipitation is 8 to 10 inches, and the frost-free season is 100
to 120 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Enko, Izzen,
McConnel and
Tomera series. Enko soils have a loamy textured particle-size control section with less than 35 percent rock fragments. Izzen soils have less than 35 percent rock fragments
in the substratum. McConnel soils lack silica accumulations.
Tomera soils have a clay Bt horizon that is sodium affected.
DRAINAGE AND PERMEABILITY: Well drained; medium runoff;
moderately rapid over a rapidly permeable substrata.
USE AND VEGETATION: Rangeland and wildlife habitat. Vegetation
is mainly Wyoming big sagebrush, gray horsebrush, mustards,
Sandberg bluegrass, bottlebrush squirreltail and cheatgrass.
DISTRIBUTION AND EXTENT: Northeastern Nevada. These soils are
not extensive.
MLRA OFFICE RESPONSIBLE: Reno, Nevada
SERIES ESTABLISHED: Eureka County, Nevada, 1983.
Diagnostic horizons and features recognized in this pedon are:
Cambic horizon - The zone from about 6 to 13 inches (Bw horizon).
Duric horizon - The zone from about 13 to 19 inches (Bq horizon).
Particle-size control section - The zone from 10 to 40 inches (Bq, 2Bk1 horizons and part of the Bw and 2Bk2 horizons).
REMARKS:
The superactive cation exchange activity class was added in 03/2003 to the taxonomic classification by the National Soil Survey Center on request of the Reno MLRA office, without review of the soil series property data. The remainder of this document has not been updated.