IDENTIFIERS

Current Taxon Name (Soil Name): La Palma

OSD

Series Extent

User Site ID: S1971AZ013008

User Pedon ID: S1971AZ013008

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 71C0021

NCSS Pedon Lab Data NASIS Record ID - 43880

Print Date: 11/21/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 33.4411125

Std. Longitude: -112.8300018

Datum: WGS84

Township: 1N

Range: 6W

Section: 12

PLSS Details: 770 feet east and 2050 feet north of SW corner

State: Arizona

County: AZ013—Maricopa

PEDON

Describers Name: W. D. Nettleton, J. E. Clay, G. W. Hartman, R. G. Schurig, F. Cook

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 8

Sampled As Information:

Soil Name - La Palma

Taxonomic Class - Coarse-loamy, mixed Petrocalcic Paleargids

PSC - 12 to 51 cm.

Classificaton Date - 4/13/1971

Moisture Class - aridic (torric)

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landform: valley

Runoff: medium

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 4/13/1971 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, grassland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
1	—	—	366	—		178	—	—	21.1	—	—	—	—	—	—	—	—	—	—

A11—0 to 4 centimeters (0.0 to 1.6 inches); pale brown (10YR 6/3), brown (10YR 4/3), moist; sandy loam; weak coarse platy structure; slightly hard, very friable, nonsticky, nonplastic; 3.0 very fine roots; 3.0 fine vesicular pores; fragments; noneffervescent; moderately alkaline, pH 8.2, thymol-blue; abrupt smooth boundary. Lab sample # 71C00126; dry when described;

A12—4 to 12 centimeters (1.6 to 4.7 inches); brown (10YR 5/3), brown (10YR 4/3), moist; fine sandy loam; massive; slightly hard, very friable, nonsticky, nonplastic; 3.0 very fine roots; 3.0 fine tubular pores; fragments; slight effervescence; moderately alkaline, pH 8.2, thymol-blue; abrupt smooth boundary. Lab sample # 71C00127; dry when described;

B1TCASA—12 to 18 centimeters (4.7 to 7.1 inches); light reddish brown (5YR 6/3), reddish brown (5YR 4/4), moist; gravelly sandy loam; weak medium subangular blocky structure; very hard, very friable, nonsticky, slightly plastic; very fine to medium roots and 0.5 fine roots; 3.0 fine tubular pores; 3 percent medium and coarse irregular noncoherent cemented pinkish white (7.5YR 8/2) lime masses; fragments; strong effervescence; strongly alkaline, pH 9.0, thymol-blue; clear wavy boundary. Lab sample # 71C00128; dry when described;

B2TCASA—18 to 31 centimeters (7.1 to 12.2 inches); light reddish brown (5YR 6/4), reddish brown (5YR 4/4), moist; sandy clay loam; strong medium columnar, and prismatic structure; very hard, firm, moderately sticky, moderately plastic; 0.5 very fine roots; 3.0 fine interstitial and 0.5 fine tubular pores; 3 percent fine and medium irregular noncoherent cemented pinkish white (7.5YR 8/2) lime masses; fragments; slight effervescence; very strongly alkaline, pH 9.6, thymol-blue; clear wavy boundary. Lab sample # 71C00129; dry when described;

B31TCA—31 to 42 centimeters (12.2 to 16.5 inches); light brown (7.5YR 6/4) and light reddish brown (5YR 6/4), reddish brown (5YR 5/4) and reddish brown (5YR 4/4), moist; sandy clay loam; moderate medium subangular blocky structure; hard when dry, friable, moderately sticky, moderately plastic; 0.5 very fine roots; 3.0 fine tubular pores; 3 percent coarse irregular noncoherent cemented pinkish white (7.5YR 8/2) lime masses; fragments; violent effervescence; very strongly alkaline, pH 9.4, thymol-blue; clear wavy boundary. Lab sample # 71C00130; dry when described;

B32TCA—42 to 51 centimeters (16.5 to 20.1 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; clay loam; weak coarse subangular blocky structure; hard when dry, friable, slightly sticky, moderately plastic; 0.1 fine roots; 3.0 fine tubular pores; 3 percent coarse irregular noncoherent cemented pinkish white (7.5YR 8/2) lime masses and 3 percent fine strongly coherent cemented pinkish white (7.5YR 8/2); fragments; strong effervescence; strongly alkaline, pH 8.9, thymol-blue; abrupt wavy boundary. Lab sample # 71C00131; dry when described;

C1CASIM—51 to 64 centimeters (20.1 to 25.2 inches); pinkish white (7.5YR 8/2); massive; extremely hard, strongly coherent by silica; fragments; violent effervescence; strongly alkaline, pH 9.0, thymol-blue; abrupt wavy boundary. Lab sample # 71C00132; dry when described;

C2CA—64 to 82 centimeters (25.2 to 32.3 inches); light brown (7.5YR 6/4), brown (7.5YR 5/4), moist; clay loam; massive; hard when dry, friable, slightly sticky, slightly plastic; 0.0 roots; 0.5 fine tubular pores; 3 percent carbonate concretions and 21 percent coarse irregular noncoherent cemented pinkish white (7.5YR 8/2) lime masses; fragments; strong effervescence; strongly alkaline, pH 9.0, thymol-blue; clear wavy boundary. Lab sample # 71C00133; dry when described;

C3—82 to 146 centimeters (32.3 to 57.5 inches); light brown (7.5YR 6/4), brown (7.5YR 4/4) and pink (5YR 7/4), moist; clay loam; massive; hard when dry, friable, slightly sticky, moderately plastic; 0.1 medium roots; 0.5 fine tubular pores; 1 percent fine noncoherent cemented pinkish white (7.5YR 8/2) lime masses; fragments; slight effervescence; strongly alkaline, pH 9.0, thymol-blue. Lab sample # 71C00134; dry when described;