IDENTIFIERS

Current Taxon Name (Soil Name): DESFIREX

OSD

Series Extent

User Site ID: S1997CA071004

User Pedon ID: 97CA071004

Vegetation Plot ID: S1997CA071004

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 97P0418

NCSS Pedon Lab Data NASIS Record ID - 10101

Print Date: 11/12/2024

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: 34.2631950

Std. Longitude: -116.2636108

Datum: WGS84

Township: 2N

Range: 7E

Section: 16

PLSS Details: About 1 mile northeast of Sand Hill along Surprise Spring Road from south military base boundary; about 100 feet east and 800 feet south of the northwest corner

State: California

County: CA071—San Bernardino

MLRA: 30—Mojave Basin and Range

Non-MLRA Soil Survey Area: CA699—Marine Corps Air Ground Combat Center at Twentynine Palms, California

7.5 Minute USGS Quad: 34116-C3—Goat Mountain, California

PEDON

Describers Name: SES

Current Taxonomic Class: Fine-loamy, mixed, thermic Argidic Argidurids

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 4

Correlated Information:

Soil Name - DESFIREX

PSC - 14 to 49 cm.

Classificaton Date - 7/16/2007

Moisture Class - aridic (torric)

Sampled As Information:

Soil Name - Desfirex

Taxonomic Class - Fine-loamy, mixed, thermic Typic Argidurid

Taxon Kind - series

Classificaton Date - 9/12/1995

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: fan piedmont

Landform: fan skirt

Runoff: very low

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 9/12/1995 (actual site observation date)

Air Photo ID: 28

Plant Association Name: RANGE SITE: 030XB005NV

Surface Cover Properties:

Site Obs. Cover Kind 1 - other

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: wind and water erosion

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
AMDU2	Ambrosia dumosa	burrobush	—	—	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon calcic horizon duripan	0—13 13—56 56—109 71—81	—- —- —- —-

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	—	—	817	—		102	—	—	19.4	28.9	11.1	18.3	27.8	10	—	—	CA9099	TWENTYNINE PALMS	TAPS, GROWTH, F

A1—0 to 5 centimeters (0.0 to 2.0 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; loamy coarse sand; moderate fine and medium platy structure; slightly hard, very friable, nonsticky, nonplastic; 10.0 very fine roots; 10.0 very fine vesicular pores; 10 percent by volume rounded 2-39-75 millimeter granite fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; abrupt wavy boundary. Lab sample # 97P02512

A2—5 to 13 centimeters (2.0 to 5.1 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; loamy coarse sand; moderate medium and coarse subangular blocky structure; slightly hard, very friable, nonsticky, nonplastic; 10.0 very fine roots and 4.0 fine roots; 2.0 very fine and fine low-continuity tubular pores; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 97P02513

Btk1—13 to 30 centimeters (5.1 to 11.8 inches); dark yellowish brown (10YR 4/4), light yellowish brown (10YR 6/4), dry; sandy clay loam; moderate fine and medium subangular blocky structure; extremely hard, firm, moderately sticky, moderately plastic; 4.0 very fine and fine roots between peds and 0.9 medium roots between peds; 3.0 very fine moderate-continuity tubular pores; 7 percent prominent very pale brown (10YR 8/2), dry, carbonate coats on lower surfaces of peds or rocks and 30 percent distinct reddish yellow (7.5YR 6/6), dry, clay films on faces of peds and in pores and 40 percent distinct reddish yellow (7.5YR 6/6), dry, clay bridges between sand grains; 2 percent fine irregular noncoherent cemented very pale brown (10YR 8/2) carbonate threads; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; slight effervescence, by hcl, 1n; slightly alkaline, pH 7.7, hellige-truog; clear wavy boundary. Lab sample # 97P02514. discontinuous - phpvsfiid 183270; patchy - phpvsfiid 183272; discontinuous - phpvsfiid 183271; discontinuous - phpvsfiid 183270; patchy - phpvsfiid 183272; discontinuous - phpvsfiid 183271

Btk2—30 to 56 centimeters (11.8 to 22.0 inches); brown (7.5YR 4/4), light brown (7.5YR 6/4), dry; sandy clay loam; strong medium and coarse subangular blocky structure; extremely hard, very firm, moderately sticky, moderately plastic; 4.0 very fine roots and 0.9 fine roots between peds; 3.0 very fine moderate-continuity tubular pores; 7 percent prominent very pale brown (10YR 8/2), dry, carbonate coats on lower surfaces of peds or rocks and 15 percent faint reddish yellow (7.5YR 6/6), dry, clay films on faces of peds and in pores and 30 percent prominent reddish yellow (7.5YR 6/6), dry, clay bridges on faces of peds; 3 percent coarse and very coarse irregular very pale brown (10YR 8/2) carbonate masses between peds and 1 percent fine and medium irregular noncoherent cemented very pale brown (10YR 8/2) carbonate threads; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; strong effervescence, by hcl, 1n; slightly alkaline, pH 7.8, hellige-truog; clear wavy boundary. Lab sample # 97P02515. patchy - phpvsfiid 183275; discontinuous - phpvsfiid 183273; discontinuous - phpvsfiid 183274; patchy - phpvsfiid 183275; discontinuous - phpvsfiid 183273; discontinuous - phpvsfiid 183274

Bkq—56 to 71 centimeters (22.0 to 28.0 inches); yellowish brown (10YR 5/4), light yellowish brown (10YR 6/4), dry; loamy coarse sand; massive; hard, firm, very weakly coherent by carbonates and silica; brittle; 0.9 very fine roots; 2.0 very fine and fine low-continuity tubular pores; 7 percent prominent very pale brown (10YR 8/2), dry, carbonate coats on lower surfaces of peds or rocks; 3 percent medium platy moderately coherent cemented brownish yellow (10YR 6/6) silica concretions and 35 percent very coarse and extremely coarse spherical weakly coherent cemented brownish yellow (10YR 6/6) durinodes and 10 percent very coarse and extremely coarse spherical weakly coherent cemented very pale brown (10YR 8/2) carbonate nodules; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; 40 percent krotovinas (lateral area percent); violent effervescence, by hcl, 1n; moderately alkaline, pH 7.9, hellige-truog; clear irregular boundary. Lab sample # 97P02516. patchy - phpvsfiid 183276; patchy - phpvsfiid 183276

Bkqm—71 to 81 centimeters (28.0 to 31.9 inches); light gray (10YR 7/2), very pale brown (10YR 8/2), dry; massive; hard, firm, very weakly coherent by carbonates and silica; brittle; 0.5 very fine and fine roots in cracks and 0.9 very fine and fine roots top of horizon; 0.5 very fine low-continuity constricted tubular pores; 3 percent distinct light reddish brown (5YR 6/4), dry, iron stains on vertical faces of peds; 10 percent fine and medium platy indurated cemented brownish yellow (10YR 6/6) silica concretions and 45 percent very coarse and extremely coarse spherical weakly coherent cemented brownish yellow (10YR 6/6) durinodes and 15 percent very coarse and extremely coarse spherical extremely weakly coherent cemented very pale brown (10YR 8/2) carbonate nodules; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.1, hellige-truog; clear smooth boundary. Lab sample # 97P02517. patchy - phpvsfiid 183277; patchy - phpvsfiid 183277

Bkq'—81 to 109 centimeters (31.9 to 42.9 inches); yellowish brown (10YR 5/4), very pale brown (10YR 7/4), dry; massive; hard, friable, extremely weakly coherent by carbonates and silica; brittle; 4.0 very fine and fine roots; 0.5 very fine low-continuity tubular pores; 7 percent prominent very pale brown (10YR 8/2), dry, carbonate coats on lower surfaces of peds or rocks; 45 percent coarse spherical moderately coherent cemented brownish yellow (10YR 6/6) durinodes and 5 percent very coarse and extremely coarse cylindrical weakly coherent cemented very pale brown (10YR 8/2) carbonate nodules; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; 35 percent krotovinas (lateral area percent); violent effervescence, by hcl, 1n; moderately alkaline, pH 8.3, hellige-truog; clear irregular boundary. patchy - phpvsfiid 183278; patchy - phpvsfiid 183278

Ckq—109 to 152 centimeters (42.9 to 59.8 inches); light olive brown (2.5Y 5/3), pale yellow (2.5Y 8/3), dry; single grain; loose, nonsticky, nonplastic; 7 percent prominent very pale brown (10YR 8/2), dry, carbonate coats on lower surfaces of peds or rocks; 10 percent coarse and very coarse cylindrical moderately coherent cemented brownish yellow (10YR 6/6) durinodes and 5 percent very coarse and extremely coarse spherical very pale brown (10YR 8/2) carbonate masses; 10 percent by volume subrounded 2-39-75 millimeter granite fragments; strong effervescence; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 97P02518. patchy - phpvsfiid 183279; patchy - phpvsfiid 183279