LOCATION MCNEW NM TX
Established Series
Rev. DGS/RLB
12/2014
MCNEW SERIES
The Mcnew series consists of very deep, well drained, moderately permeable soils formed in eolian sands over alluvium. These nearly level to gently sloping soils are on alluvial flats of basin floors. Slope ranges from 1 to 5 percent. Mean annual precipitation is about 9 inches and the mean annual temperature is about 64 degrees F.
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, thermic Typic Calciargids
TYPICAL PEDON: Mcnew sandy loam -- rangeland. (Colors are for dry soil unless otherwise stated.)
A--0 to 3 inches; brown (7.5YR 5/4) crushed, sandy loam, strong brown (7.5YR 5/6) crushed, moist; 12 percent clay; weak fine granular and weak fine platy structure; strongly effervescent, by HCl, 3 normal; abrupt smooth boundary. (0 to 5 inches thick)
Btk1--3 to 8 inches; brown (7.5YR 5/3) crushed, sandy clay loam, brown (7.5YR 4/4) crushed, moist; 24 percent clay; moderate fine subangular blocky and moderate medium subangular blocky structure; few distinct clay films on all faces of peds; 10 percent fine threads carbonate masses throughout; strongly effervescent, by HCl, 3 normal; abrupt wavy boundary. (4 to 8 inches thick)
Btk2--8 to 15 inches; pink (7.5YR 8/4) crushed, sandy clay loam, light brown (7.5YR 6/4) crushed, moist; 24 percent clay; moderate fine subangular blocky and moderate medium subangular blocky structure; few distinct clay films on all faces of peds; 5 percent fine spherical weakly cemented carbonate nodules throughout and 40 percent medium irregular carbonate masses throughout; strongly effervescent, by HCl, 3 normal; gradual smooth boundary. (5 to 12 inches thick)
Btk3--15 to 22 inches; pink (7.5YR 8/3) crushed, sandy clay loam, pink 7.5YR 7/3) crushed, moist; 26 percent clay; moderate fine subangular blocky and moderate medium subangular blocky structure; few distinct clay films on all faces of peds; 5 percent fine spherical weakly cemented carbonate nodules throughout and 60 percent coarse irregular carbonate masses throughout; violently effervescent, by HCl, 3 normal; gradual smooth boundary. (5 to 13 inches thick)
Btk4--22 to 33 inches; pinkish white (7.5YR 8/2) crushed, sandy clay loam, pink (7.5YR 7/4) crushed, moist; 28 percent clay; moderate fine subangular blocky and moderate medium subangular blocky structure; few distinct clay films on all faces of peds; 5 percent fine spherical weakly cemented carbonate nodules throughout and 80 percent coarse irregular carbonate masses throughout; violently effervescent, by HCl, 3 normal; gradual smooth boundary. (8 to 15 inches thick)
Btk5--33 to 45 inches; pinkish white (7.5YR 8/2) crushed, sandy clay loam, pink (7.5YR 7/3) crushed, moist; 26 percent clay; moderate fine subangular blocky and moderate medium subangular blocky structure; few distinct clay films on all faces of peds; 5 percent fine spherical weakly cemented carbonate nodules throughout and 60 percent medium irregular carbonate masses throughout; violently effervescent, by HCl, 3 normal; clear wavy boundary. (8 to 17 inches thick)
C--45 to 80 inches; pink (7.5YR 7/3) crushed, sandy loam, brown (7.5YR 5/4) crushed, moist; 14 percent clay; massive; 30 percent fine irregular carbonate masses throughout; strongly effervescent, by HCl, 3 normal.
TYPE LOCATION: Otero County, New Mexico; approximately 5.6 miles west and 11.8 miles south of Oro Grande; 900 feet E. and 1,600 feet S. of the NW corner of Section 24, R. 7 E, T. 24 S., UTM zone 13, 0388161E, 3563724N; NAD 27; USGS Desert topographic quadrangle; latitude 32 degrees 12 minutes 22.43 seconds N. and longitude 106 degrees 11 minutes 11.93 seconds W.
RANGE IN CHARACTERISTICS:
Soil Moisture: Typic aridic soil moisture regime. The moisture control section is usually dry in all parts more than three-fourths of the time that the soil temperature exceeds 41 degrees F.
Mean annual soil temperature: 63 to 72 degrees F.
Depth to argillic horizon: 0 to 5 inches
Depth to calcic horizon: 10 to 20 inches
Particle-size control section (weighted average):
Clay content: 18 to 27 percent
Coarse fragment content: 0 to 5 percent
Calcium carbonate equivalent: 15 to 40 percent (less than 2 mm fraction)
A horizon
Hue: 5YR, 7.5YR
Value: 4 to 6, dry or moist
Chroma: 3 to 6, dry or moist
Btk horizon
Hue: 5YR, 7.5YR
Value: 5 to 8 dry, 4 to 6 moist
Chroma: 2 to 6, dry or moist
Texture: sandy clay loam, sandy loam, loam, clay loam
C horizon
Hue: 5YR, 7.5YR
Value: 6 to 8 dry, 5 or 6 moist
Chroma: 2 to 4, dry or moist
Texture: sandy loam
COMPETING SERIES: These are the
Blackmagic (CA),
Brenda (NM),
Cornville (AZ),
Dona Ana (NM), Elizaro (NM),
Hap (NM),
Jagerson (AZ),
Kidwell (NV),
Lanip (NV),
Madurez (NM),
Mohave (AZ), Nutt (NM),
Poachie (AZ), and
Tres Hermanos (NM) series. Blackmagic soils have an accumulation of gypsum within 40 inches of the surface. Blackmagic, Haps and Tres Hermanos soils contain 15 to 35 percent rock fragments. Blackmagic, Jagerson, Kidwell, Lanip and Poachie soils occur in the Mohave Desert (MLRA 30), receive mostly winter precipitation and are moist for less than 20 days cumulative during July-September. Brenda soils have gravelly sand or fine sand in the lower part of the profile below the argillic horizon. Cornville soils contain more than 50 percent sand in the particle size control section. Cornville soils also have Bt horizons thicker than 10 inches and have solum thickness greater than 25 inches. Dona Ana soils have the base of the argillic horizon within 28 inches of the surface. Also they have BA horizons. Dona Ana soils are effervescent throughout the PSCS and have calcic horizon beginning at 2 inches depth.
Elizario soils have a calcic horizon at depths greater than 20 inches. Jagerson soils have greater than 15 percent rock fragments in the series control section. Kidwell soils have greater than 15 percent rock fragments in the series control section. Mcnew and Nutt soils argillic horizons thickness ranges from 30 to 50 inches thick.
Mohave soils contain 27 to 40 percent clay in the PSCS. Mohave soils have less than 50 percent sand in the series control section. Nutt soils have a soil temperature of 59-62 degrees F. and have a calcic horizon above the argillic horizon.
Poachie soils have cambic horizon above the argillic horizon.
Tres Hermanos soils are effervescent throughout. Tres Hermanos and
Cornville soils clay content ranges from 18 to 35 percent in the PSCS.
GEOGRAPHIC SETTING: Mcnew soils are on alluvial flats of basin floors at elevations of 3,900 to 4,300 feet. These soils formed in eolian sands over alluvium. Slopes range from 1 to 5 percent. The mean annual precipitation is 8 to 10 inches. The precipitation falls mostly during the months of July through September. The driest months are March and April. Precipitation during the months of January, February, and March is less than 13 percent of the total. The mean annual air temperature is 62 to 70 degrees F. The frost-free period is 180 to 240 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the
Copia,
Foxtrot,
Hueco,
Elizario and
Nations soils. Copia soils are sandy and do not have calcic horizons and are on sand sheets on the basin floor. Foxtrot, Hueco and Nations soils are moderately deep to a petrocalcic horizon and are on the basin floor. Elizario soils have calcic horizons at depths greater than 20 inches and are on slightly depressed alluvial flats of the basin floor.
DRAINAGE AND PERMEABILITY: Well drained. Permeability is moderate. Runoff is low.
USE AND VEGETATION: Used for grazing livestock. Vegetation is of the desert shrub type consisting of mesa dropseed, spike dropseed, sand dropseed, threeawns, broom snakeweed, fourwing saltbush, and mesquite.
DISTRIBUTION AND EXTENT: Trans-Pecos of Texas and southern New Mexico; LRR D, MLRA 42; small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Phoenix, Arizona
SERIES ESTABLISHED: Otero County, New Mexico; 2001.
REMARKS: Diagnostic horizons and features recognized in this pedon are:
Particle-size control section: The zone from 3 to 23 inches. (Btk1, Btk2, Btk3, and Btk4, horizons)
Ochric epipedon: The zone from 0 to 7 inches. (A and Btk1, horizons, mixed to 7 inches)
Argillic horizon: The zone from 3 to 45 inches. (Btk1, Btk2, Btk3, and Btk4 horizons)
Calcic horizon: The zone from 8 to 45 inches. (Btk2, Btk3, Btk4, and Btk5 horizons)
Classified according to Soil Taxonomy Second Edition, 1999; Keys to Soil Taxonomy, Twelfth Edition, 2014.
Revised for the correlation of White Sands Missile Range, New Mexico; October, 2014, NMS
National Cooperative Soil Survey
U.S.A.