IDENTIFIERS

Current Taxon Name (Soil Name): Kimbrough

OSD

Series Extent

User Site ID: S1992TX137002

User Pedon ID: 92TX137002

Vegetation Plot ID: S1992TX137002

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 92P0472

NCSS Pedon Lab Data NASIS Record ID - 64711

Print Date: 11/23/2024

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: 29.9500008

Std. Longitude: -100.5666656

Datum: WGS84

Location Description: From entrance of Canyon Ranch, 1.0 miles NE to cattle guard, 1.2 miles N beside fence, then 170 feet E in rangeland.

State: Texas

County: TX137—Edwards

Non-MLRA Soil Survey Area: TX607—Edwards and Real Counties, Texas

PEDON

Describers Name: L.E. Loomis, S.R. Albee

Pedon Type: TUD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 2

Sampled As Information:

Soil Name - Kimbrough

Taxonomic Class - Loamy, mixed, shallow Petrocalcic Calciustolls

PSC - 25 to 100 cm.

Classificaton Date - 2/14/1992

Moisture Class - ustic

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Landscape: plains

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Shape Down: convex

Runoff: very low

Drainage Class: well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 2/14/1992 (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

Site Erosion Accelerated: water erosion

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
ARIST ARIST BOBA3 DICOC ECHIN2 EPVI MATR3 PAHAH PAOB PAOB YUBAB2	Aristida Aristida Bothriochloa barbinodis Digitaria cognata var. cognata Echinocactus Ephedra viridis Mahonia trifoliolata Panicum hallii var. hallii Panicum obtusum Panicum obtusum Yucca baccata var. brevifolia	threeawn threeawn cane bluestem Carolina crabgrass echinocactus mormon tea algerita Hall's panicgrass vine mesquite vine mesquite Spanish dagger	— — — — — — — — — — —	— — — — — — — — — — —	— — — — — — — — — — —

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon petrocalcic horizon	0—36 36—53	—- —-

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	0	45.7	709	—	0	584	—	—	—	—	—	—	—	—	—	—	—	—	—

A1—0 to 25 centimeters (0.0 to 9.8 inches); dark grayish brown (10YR 4/2), very dark grayish brown (10YR 3/2), moist; silty clay loam; 37 percent clay; moderate fine and medium subangular blocky parts to moderate medium granular parts to moderate very fine and fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine and fine roots throughout and 0.5 medium and coarse roots throughout; 3.0 very fine high-continuity interstitial and 21.0 very fine high-continuity tubular pores; distinct pink (7.5YR 7/4) carbonate coats on lower surfaces of peds or rocks; 3 percent fine spherical worm casts; 2 percent by volume 75-162-250 millimeter conglomerate, unspecified fragments and 12 percent by volume 2-39-75 millimeter conglomerate, unspecified fragments; violent effervescence, by hcl, 1n; gradual wavy boundary. Lab sample # 92P02862; moist when described;. fine and very fine granules are former fecal pellets; 9% rock fragments 2-20 mm in diameter; continuous - phpvsfiid 174502; continuous - phpvsfiid 174502

Ak—25 to 36 centimeters (9.8 to 14.2 inches); 50 percent brown (10YR 4/3) and 50 percent very pale brown (10YR 8/3), 50 percent dark brown (10YR 3/3) and 50 percent very pale brown (10YR 7/3), moist; silty clay loam; 33 percent clay; moderate fine subangular blocky parts to moderate medium granular parts to moderate very fine and fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 21.0 very fine and fine roots around fragments and 0.5 medium roots around fragments; 3.0 very fine high-continuity interstitial and 21.0 very fine high-continuity tubular pores; 75 percent prominent pink (7.5YR 7/4) carbonate coats on lower surfaces of peds or rocks; 3 percent fine spherical worm casts; 20 percent by volume subangular conglomerate, unspecified fragments and 30 percent by volume angular conglomerate, unspecified fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # 92P02863; moist when described;. fine and very fine granules are former fecal pellets; 18% rock fragments 2-20 mm in diameter (these fragments are detached caliche and highly weathered limestone); continuous - phpvsfiid 174503; continuous - phpvsfiid 174503

Bkm1—36 to 43 centimeters (14.2 to 16.9 inches); pinkish white (7.5YR 8/2), pinkish white (7.5YR 8/2), moist; indurated; around fragments; 3 percent medium cylindrical worm casts; fragments; violent effervescence, by hcl, 1n. Lab sample # 92P02864. laminar cap indurated 1"""" thick, horizontal fractures 1-2"""" apart and vertical fractures 3-16"""" apart; no roots in horizon, but some matted on upper and lower surfaces; laminar caliche 5 mm thick on surface below fracture (7.5YR 7/4) (m)

Bkm2—43 to 53 centimeters (16.9 to 20.9 inches); 35 percent white (10YR 8/1) and 20 percent yellow (10YR 7/8) and 45 percent very pale brown (10YR 8/4), 35 percent pinkish white (7.5YR 8/2) and 20 percent yellow (10YR 7/8) and 45 percent very pale brown (10YR 7/4), moist; 1 percent red (10R 4/8) fine and medium distinct mottles; strongly cemented; 3.0 very fine and fine roots around fragments and 3.0 medium roots around fragments and 0.5 coarse roots around fragments; fragments; violent effervescence, by hcl, 1n. Lab sample # 92P02865. horizontal fractures 1"""" apart, (7.5YR 7/8) in horizontal bands; remainder of colors between end members; vertical fractures 1-4"""" apart; laminar caliche 5 mm thick on surface below fracture (7.5YR 7/4) (m)

Crk—53 to 117 centimeters (20.9 to 46.1 inches); 65 percent yellow (10YR 8/6) and 15 percent pinkish white (7.5YR 8/2) and 5 percent very pale brown (10YR 8/2), 65 percent yellow (10YR 7/8) and 15 percent pinkish white (7.5YR 8/2) and 5 percent very pale brown (10YR 8/2), moist; sandy loam; 12 percent clay; massive; extremely hard, firm, nonsticky, nonplastic; 0.5 very fine and fine roots in cracks; 1 percent fine spherical worm casts; fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # 92P02866; moist when described;. filled solution chamber?; massive, horizontal fractures 4-5"""" apart; 1% (10YR 4/3) fine earth in fractures; 15% (10YR 8/6) in matrix; (10YR 8/2) along fractures, veins, and fracture surfaces; roots in (10YR 8/2) fractures; worm casts in horizontal fractures

Bk—117 to 142 centimeters (46.1 to 55.9 inches); pink (7.5YR 7/4), brown (7.5YR 5/4), moist; loam; 22 percent clay; weak medium granular structure; soft, very friable, nonsticky, slightly plastic; 0.5 very fine and fine roots throughout and 0.5 medium and coarse roots throughout; 21.0 very fine and fine high-continuity interstitial pores; fragments; violent effervescence, by hcl, 1n; abrupt wavy boundary. Lab sample # 92P02867; moist when described;

R—142 centimeters (55.9 inches); fragments. basal calcarenite