IDENTIFIERS
Current Taxon Name (Soil Name):
Darwin
OSD
Series Extent
User Site ID:
1990MO019064
User Pedon ID:
1990MO019064
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
MCL
Lab Pedon # -
M9001964
NCSS Pedon Lab Data NASIS Record ID -
26625
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:
38.6812366
Std. Longitude:
-92.3098366
Datum:
WGS84
Range:
R13W
Section:
17
Location Description:
2500 feet east and 1600 feet north of SW cor. sec. 17, T.45 N., R. 13W.
State:
Missouri
County:
MO019—Boone
MLRA:
115—Central Mississippi Valley Wooded Slopes
PEDON
Describers Name:
F.J. Young
Current Taxon Kind:
taxadjunct
Pedon Type:
not classified to current taxon name
Pedon Purpose:
full pedon description
Pedon Record Orgin:
Converted from PDP 3.x
Sampled As Information:
Soil Name -
Darwin
PSC -
25 to 100 cm.
Classificaton Date -
12/11/1990
Moisture Class -
udic
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Parent Material:
alluvium
Landform:
flood plain
Slope Shape Across:
linear
Slope Shape Down:
linear
Runoff:
negligible
Drainage Class:
somewhat poorly
Flooding:
occasional flooding
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
12/11/1990 (actual site observation date)
Air Photo ID:
50
Surface Cover Properties:
Site Obs. Cover Kind 1 -
crop cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Pedon Diagnostic Features
Feature Kind
Feature Depth L-H
Feature Thickness L-RV-H
cm
mollic epipedon
cambic horizon
0—25
25—165
—-
—-
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
0
—
—
—
—
914
—
—
—
—
—
—
—
—
—
—
—
—
—
Ap—0 to 25 centimeters (0.0 to 9.8 inches); very dark grayish brown (2.5Y 3/2), dark grayish brown (10YR 4/2), dry; silty clay loam; weak very fine granular, and weak very fine subangular blocky structure; friable; fragments; neutral, pH 6.7, hellige-truog; clear smooth boundary. Lab sample # MU010806. (Note: The granular structure is on the surface and in the lower part of the horizon.)
Bg1—25 to 56 centimeters (9.8 to 22.0 inches); dark grayish brown (2.5Y 4/2) silty clay; moderate very fine subangular blocky structure; firm; 15 percent fine olive brown (2.5Y 4/3) masses of oxidized iron; fragments; neutral, pH 7.0, hellige-truog; gradual smooth boundary. Lab sample # MU010807
Bg2—56 to 76 centimeters (22.0 to 29.9 inches); dark grayish brown (2.5Y 4/2) silty clay; moderate very fine subangular blocky structure; firm; 15 percent fine olive brown (2.5Y 4/3) masses of oxidized iron; fragments; slightly alkaline, pH 7.4, hellige-truog; gradual smooth boundary. Lab sample # MU010808
Bg3—76 to 114 centimeters (29.9 to 44.9 inches); grayish brown (10YR 5/2) clay; strong fine and medium subangular blocky structure; firm; yellowish brown (10YR 5/4) masses of oxidized iron; 60 percent fine brown (10YR 5/3); fragments; slightly alkaline, pH 7.6, hellige-truog; gradual smooth boundary. Lab sample # MU010809
Bg4—114 to 165 centimeters (44.9 to 65.0 inches); gray (10YR 5/1) silty clay; strong medium subangular blocky structure; firm; 15 percent fine reddish brown (5YR 4/4) masses of oxidized iron; 15 percent fine yellowish brown (10YR 5/6); fragments; slightly alkaline, pH 7.6, hellige-truog. Lab sample # MU010810