IDENTIFIERS
Current Taxon Name (Soil Name):
Cornwall
OSD
Series Extent
User Site ID:
1998MO123008M
User Pedon ID:
1998MO123008M
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
MCL
Lab Pedon # -
M9012308
NCSS Pedon Lab Data NASIS Record ID -
26844
Print Date:
11/26/2024
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:
37.4558334
Std. Longitude:
-90.1877747
Datum:
WGS84
Township:
T32N
Range:
R8E
Section:
17
PLSS Details:
3500 feet S and 3950 feet E of the NW corner
Location Description:
3,500 feet south and 3,950 feet east of the northwest corner of sec. 17, T. 32 N., R. 8 E.
Map Unit:
28C—Cornwall silt loam, 3 to 8 percent slopes74646—Cornwall silt loam, 3 to 8 percent slopes
State:
Missouri
County:
MO123—Madison
MLRA:
116A—Ozark Highland
MLRA Soil Survey Area:
NC-SPM—Springfield, Missouri
Non-MLRA Soil Survey Area:
MO123—Madison County, Missouri
7.5 Minute USGS Quad:
37090-D2—Marquand, Missouri
PEDON
Describers Name:
KLB, ERB and MLC
Current Taxonomic Class:
Fine-silty, mixed, active, mesic Fragiaquic Paleudults
Current Taxon Kind:
series
Pedon Type:
OSD pedon
Pedon Purpose:
laboratory sampling site
Pedon Record Orgin:
Converted from PDP 3.x
Correlated Information:
Soil Name -
Cornwall
PSC -
13 to 63 cm.
Classificaton Date -
7/23/2012
Moisture Class -
udic
Sampled As Information:
Soil Name -
Cornwall
Taxonomic Class -
Fine-silty, mixed, active, mesic Fragiaquic Paleudults
Taxon Kind -
series
PSC -
13 to 63 cm.
Classificaton Date -
10/17/1990
Dynamic Soil Properties:
Erosion Class -
1
Pedoderm Loose Cover Indicator -
no
Hydric:
no
Field Measured Properties:
50 Cation exchange capacity to clay ratio
SITE
Parent Material:
loess over residuum
Landscape:
plateau
Landform:
stream terrace
Runoff:
medium
Drainage Class:
moderately well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
10/17/1990 (actual site observation date)
Air Photo ID:
D-6
Surface Cover Properties:
Site Obs. Cover Kind 1 -
grass/herbaceous cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Site Erosion Accelerated:
water erosion
Pedon Diagnostic Features
Feature Kind
Feature Depth L-H
Feature Thickness L-RV-H
cm
ochric epipedon
argillic horizon
fragic soil properties
0—13
13—152
43—99
—-
—-
—-
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
3
—
—
191
—
220
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Ap—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3), light gray (10YR 7/2), dry; silt loam; weak fine granular structure; friable; moderate permeability; 10.0 fine roots; fragments; neutral, pH 7.2, hellige-truog; clear wavy boundary. Lab sample # MU012351
Bt1—13 to 28 centimeters (5.1 to 11.0 inches); yellowish brown (10YR 5/6) silty clay loam; weak very fine and fine subangular blocky structure; friable; 5.0 fine roots; 35 percent distinct clay films on faces of peds; fragments; strongly acid, pH 5.4, hellige-truog; abrupt wavy boundary. Lab sample # MU012352. Horizon was split for sampling.
Bt2—28 to 43 centimeters (11.0 to 16.9 inches); silty clay loam; fragments; 30 BT; strongly acid, pH 5.1, hellige-truog. Lab sample # MU012353
2Btx1—43 to 69 centimeters (16.9 to 27.2 inches); yellowish brown (10YR 5/6) silt loam; 10 percent yellowish red (5YR 5/6) medium prominent and 10 percent pale brown (10YR 6/3) medium and coarse prominent mottles; weak very coarse prismatic parts to moderate medium platy structure; firm; brittle; moderately slow permeability; 5.0 fine roots between peds; 15 percent distinct clay films on faces of peds; 10 percent fine black (10YR 2/1) iron-manganese masses; 2 percent by volume 2-39-75 millimeter unspecified fragments; 40 BT; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU012354
2Btx21—69 to 84 centimeters (27.2 to 33.1 inches); yellowish brown (10YR 5/6) silt loam; 10 percent yellowish red (5YR 4/6) medium and coarse prominent mottles; moderate very coarse prismatic parts to moderate fine subangular blocky structure; firm; brittle; 15 percent distinct clay films on faces of peds; 10 percent fine masses of oxidized iron and 10 percent fine iron-manganese masses and 30 percent very coarse and extremely coarse noncoherent cemented light brownish gray (10YR 6/2) iron depletions; 2 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog; gradual wavy boundary. Lab sample # MU012355. Horizon was split for sampling; x horizons may be buried Ex horizons; base sums in the low 20%s.
2Btx22—84 to 99 centimeters (33.1 to 39.0 inches); silt loam; brittle; 2 percent by volume 2-39-75 millimeter unspecified fragments; very strongly acid, pH 4.9, hellige-truog. Lab sample # MU012356
3Bt3—99 to 124 centimeters (39.0 to 48.8 inches); red (2.5YR 4/6) very gravelly silty clay loam; 1 percent brown (10YR 5/3) medium prominent and 1 percent strong brown (7.5YR 5/8) fine prominent mottles; moderate fine and medium subangular blocky structure; very firm; 35 percent prominent clay films on faces of peds; 42 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.1, hellige-truog. Lab sample # MU012357. Horizon was split for sampling; and appears to be a Btb; base saturation 35 and 36%.
3Bt4—124 to 152 centimeters (48.8 to 59.8 inches); very gravelly silty clay loam; 42 percent by volume 2-39-75 millimeter unspecified fragments; strongly acid, pH 5.2, hellige-truog. Lab sample # MU012358