IDENTIFIERS

User Site ID: S83TX193001

User Pedon ID: S83TX193001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - TAMU

Lab Pedon # - S83TX193001

NCSS Pedon Lab Data NASIS Record ID - 82639

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: 31.4594306

Std. Longitude: -98.2213806

Datum: WGS84

Location Description: From ther intersection of U.S. Hwy 84 and 281 in Evant, 8.0 km west on U.S. Hwy 84 and 3.0 km south on county road. Site is 400 m NE of road.

State: Texas

County: TX193—Hamilton

PEDON

Describers Name: Stahnke, Lane

Pedon Type: taxadjunct to the series

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: Pedon PC 5.0

Sampled As Information:

Soil Name - Cho

Taxonomic Class - Fine, smectitic, thermic Petrocalcic Calciustolls

Taxon Kind - taxadjunct

PSC - 25 to 52 cm.

Classificaton Date - 9/4/2012

Classifier - A Stahnke

Soil Taxonomic Edition - eleventh edition

Moisture Class - ustic

Moisture SUBClass - typic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 7/6/1983 (actual site observation date)

Data Collector: West, Hallmark, Stahnke, Lane, McCaleb, Williamson, Kiniry

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

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, paralithic	—	156 - 185	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon cambic horizon petrocalcic horizon redox concentrations calcic horizon paralithic contact redox depletions with chroma 2 or less	0—33 16—52 52—77 52—185 77—156 156—185 180—185	—- —- —- —- —- —- —-

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
—	—	—	—	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 16 centimeters (0.0 to 6.3 inches); very dark grayish brown (10YR 3/2), very dark brown (10YR 2/2), moist; silty clay; weak medium prismatic, and moderate very fine subangular blocky structure; hard, firm; 2.0 medium roots and 2.0 fine roots; 1 percent worm casts and 2 percent carbonate nodules; fragments; strong effervescence; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # TAMU1828

Bk1—16 to 33 centimeters (6.3 to 13.0 inches); brown (7.5YR 4/2), dark brown (7.5YR 3/2), moist; silty clay; weak medium prismatic, and moderate very fine subangular blocky structure; hard, firm; 2.0 very fine roots and 2.0 fine roots; and 5 percent medium carbonate nodules; fragments; violent effervescence; moderately alkaline, pH 8.2; abrupt wavy boundary. Lab sample # TAMU1829

Bk2—33 to 52 centimeters (13.0 to 20.5 inches); yellowish brown (10YR 5/4), dark yellowish brown (10YR 4/4), moist; silty clay; weak medium subangular blocky structure; hard, firm; 1.0 very fine roots; 20 percent moderately coherent cemented carbonate nodules and strongly coherent cemented carbonate nodules and 1 percent coarse carbonate masses and 5 percent very coarse moderately coherent cemented carbonate nodules; fragments; violent effervescence; moderately alkaline, pH 8.2; abrupt wavy boundary. Lab sample # TAMU1830

Bkm1—52 to 60 centimeters (20.5 to 23.6 inches); white (10YR 8/1), very pale brown (10YR 8/3), moist; massive; extremely hard; 0.5 fine roots in cracks; 1 percent fine distinct yellowish brown (10YR 5/6) masses of oxidized iron and 20 percent medium distinct brownish yellow (10YR 6/6) masses of oxidized iron; fragments; violent effervescence; moderately alkaline, pH 8.2; abrupt wavy boundary. Lab sample # TAMU1831

Bkm2—60 to 77 centimeters (23.6 to 30.3 inches); 10YR (10YR/),, yellow (10YR 7/6), moist; silt loam; weak coarse subangular blocky structure; hard, firm; 0.5 very fine roots; 1 percent coarse distinct reddish yellow (5YR 6/8) masses of oxidized iron and 10 percent fine faint brownish yellow (10YR 6/8) masses of oxidized iron; 5 percent coarse moderately coherent cemented carbonate nodules and 20 percent coarse carbonate masses; fragments; violent effervescence; moderately alkaline, pH 8.2; clear wavy boundary. Lab sample # TAMU1832

B'k1—77 to 103 centimeters (30.3 to 40.6 inches); 10YR (10YR/),, very pale brown (10YR 8/3), moist; silt loam; weak coarse subangular blocky structure; hard, firm; 1 percent medium distinct reddish yellow (5YR 6/8) masses of oxidized iron and 20 percent coarse distinct brownish yellow (10YR 6/6) masses of oxidized iron; 15 percent white (N 8/) carbonate masses; 1 percent by volume shell fragments fragments; violent effervescence; moderately alkaline, pH 8.2; clear smooth boundary. Lab sample # TAMU1833

B'k2—103 to 133 centimeters (40.6 to 52.4 inches); 2.5Y 8/ (2.5Y 8/),, 2.5Y 8/ (2.5Y 8/),, moist; silt loam; weak coarse subangular blocky structure; hard, firm; 0.5 fine roots; 1 percent medium reddish yellow (5YR 6/6) masses of oxidized iron and 10 percent medium distinct brownish yellow (10YR 6/6) masses of oxidized iron and 20 percent coarse distinct very pale brown (10YR 8/3) masses of oxidized iron; 60 percent carbonate masses; fragments; violent effervescence; moderately alkaline, pH 8.2; abrupt smooth boundary. Lab sample # TAMU1834

CBk—133 to 156 centimeters (52.4 to 61.4 inches); 2.5Y 8/ (2.5Y 8/),, 2.5Y 8/ (2.5Y 8/),, moist; silt loam; weak fine platy structure; very hard, very firm; 0.5 fine roots; 1 percent fine iron-manganese concretions and 10 percent medium distinct brownish yellow (10YR 6/6) masses of oxidized iron and 20 percent coarse distinct very pale brown (10YR 8/3) masses of oxidized iron; 60 percent carbonate masses and carbonate masses; fragments; violent effervescence; moderately alkaline, pH 8.2; abrupt smooth boundary. Lab sample # TAMU1835

Cr1—156 to 180 centimeters (61.4 to 70.9 inches); 10YR (10YR/),, yellow (10YR 7/6), moist; loam; massive; extremely hard, extremely firm; 10 percent fine distinct brownish yellow (10YR 6/8) masses of oxidized iron; 1 percent indurated cemented carbonate nodules; fragments; violent effervescence; moderately alkaline, pH 8.2; abrupt smooth boundary. Lab sample # TAMU1836

Cr2—180 to 185 centimeters (70.9 to 72.8 inches); 10YR (10YR/),, very pale brown (10YR 7/4), moist; massive; extremely hard, extremely firm; 10 percent medium faint light gray (10YR 7/1) iron depletions and 20 percent coarse distinct yellowish brown (10YR 5/8) masses of oxidized iron; fragments; violent effervescence; moderately alkaline, pH 8.2. Lab sample # TAMU1837