IDENTIFIERS
Current Taxon Name (Soil Name):
Okemah
OSD
Series Extent
User Site ID:
S1962OK111001
User Pedon ID:
1962OK111001
Lab Information:
Certified Lab Pedon Description -
yes
Lab Source ID -
SSL
Lab Pedon # -
40A4718
NCSS Pedon Lab Data NASIS Record ID -
41420
Print Date:
12/11/2024
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:
35.7372222
Std. Longitude:
-96.1750000
Datum:
WGS84
Township:
15N
Range:
11E
Section:
31
PLSS Details:
about 1350 feet S and 100 feet W of the NE corner
Map Unit:
OkB—Okemah silt loam, 1 to 3 percent slopes
State:
Oklahoma
County:
OK111—Okmulgee
MLRA:
112—Cherokee Prairies
Non-MLRA Soil Survey Area:
OK111—Okmulgee County, Oklahoma
7.5 Minute USGS Quad:
35096-F2—Nuyaka, Oklahoma
PEDON
Describers Name:
Earl C. Nance, W.A. Sparwasser
Current Taxonomic Class:
Fine, mixed, thermic Aquic Paleudolls
Current Taxon Kind:
series
Pedon Type:
OSD pedon
Pedon Purpose:
full pedon description
Pedon Record Orgin:
NASIS
Pedon #:
1
Correlated Information:
Soil Name -
Okemah (flagged as OSD)
PSC -
53 to 103 cm.
Classificaton Date -
7/30/2008
Moisture Class -
udic
Moisture Subclass -
aquic
Sampled As Information:
Soil Name -
Okemah (flagged as OSD)
PSC -
53 to 103 cm.
Classificaton Date -
6/1/1962
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
alluvium or colluvium derived from shale
Landscape:
hills
Landform:
paleoterrace
Geomorphic Component Hills:
base slope
Hill Slope Profile:
footslope
Slope Complexity:
simple
Slope Shape Across:
convex
Slope Shape Down:
convex
Runoff:
medium
Drainage Class:
somewhat poorly
Flooding:
none flooding
Ponding:
none ponding
Bedrock:
limestone and shale
Geology:
Pennsylvanian member of the Wann And Iola Formation formation in the Kc Group group.
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
Ecological Site ID
Ecological Site Name
Correlation Data
Classifier
R112XY059OK
Loamy prairie (Northeast) PE 62-80
SITE OBSERVATION
Observation Date:
6/1/1962 (actual site observation date)
Surface Cover Properties:
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Site Erosion Accelerated:
water erosion
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
—
—
227.1
—
1041
—
—
15
—
—
—
—
—
—
—
—
—
—
A1—0 to 10 centimeters (0.0 to 3.9 inches); black (10YR 2/1) interior, dark gray (10YR 4/1) interior, dry; silt loam; strong fine subangular blocky parts to moderate medium and coarse granular structure; slightly hard, friable; 15 percent worm casts; fragments; moderately acid, pH 6.0, hellige-truog; diffuse smooth boundary. Lab sample # 40A35829. moderately acid Horizon was previously referred to as A1
A2—10 to 30 centimeters (3.9 to 11.8 inches); very dark brown (10YR 2/2) interior, dark gray (10YR 4/1) interior, dry; silt loam; strong fine subangular blocky parts to moderate medium and coarse granular structure; slightly hard, friable; 15 percent worm casts; fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 40A35830. moderately acid Horizon was previously referred to as A2
AB—30 to 53 centimeters (11.8 to 20.9 inches); very dark brown (10YR 2/2) interior, dark gray (10YR 4/1) interior, dry; silty clay loam; weak medium subangular blocky parts to moderate medium and coarse granular structure; hard, firm; 1 percent fine iron-manganese concretions and 1 percent fine distinct grayish brown (10YR 5/2), moist, iron depletions and 1 percent fine prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron; fragments; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 40A35831. moderately acid Horizon was previously referred to as A3
Bt1—53 to 74 centimeters (20.9 to 29.1 inches); very dark gray (10YR 3/1) interior and dark yellowish brown (10YR 4/4) interior and reddish brown (5YR 4/4) interior and olive brown (2.5Y 4/4) interior silty clay; weak medium subangular blocky structure; very hard, very firm; clay films on all faces of peds and 1 percent slickensides (pedogenic); 1 percent fine iron-manganese concretions; fragments; slightly acid, pH 6.5, hellige-truog; gradual smooth boundary. Lab sample # 40A35832. slightly acid Horizon was previously referred to as Bt1
Bt2—74 to 109 centimeters (29.1 to 42.9 inches); dark gray (10YR 4/1) interior and olive brown (2.5Y 4/4) interior and grayish brown (10YR 5/2) interior and reddish brown (2.5YR 4/4) interior clay; weak coarse subangular blocky structure; very hard, very firm; clay films on all faces of peds; 1 percent fine iron-manganese concretions; fragments; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # 40A35833. neutral Horizon was previously referred to as Btg
Bt3—109 to 157 centimeters (42.9 to 61.8 inches); very dark brown (10YR 2/2) interior and olive brown (2.5Y 4/4) interior and yellowish brown (10YR 5/4) interior and dark reddish brown (2.5YR 3/4) interior clay; weak coarse subangular blocky structure; very hard, very firm; clay films on all faces of peds; fragments; moderately alkaline, pH 8.0, hellige-truog; gradual smooth boundary. Lab sample # 40A35834. moderately alkaline Horizon was previously referred to as Bt3
BC—157 to 201 centimeters (61.8 to 79.1 inches); olive brown (2.5Y 4/4) interior and light olive brown (2.5Y 5/4) interior clay; structureless massive; very hard, very firm; 1 percent iron concretions and 1 percent medium prominent gray (N 5/), moist, iron depletions and 1 percent medium prominent dark yellowish brown (10YR 4/6), moist, masses of oxidized iron; 1 percent fine carbonate concretions; fragments; moderately alkaline, pH 8.0, hellige-truog. Lab sample # 40A35835. moderately alkaline