IDENTIFIERS
Current Taxon Name (Soil Name):
MARSHALL
OSD
Series Extent
User Site ID:
S1963IA165001
User Pedon ID:
S1963IA165001
Lab Information:
Certified Lab Pedon Description -
no
Lab Source ID -
SSL
Lab Pedon # -
40A1495
NCSS Pedon Lab Data NASIS Record ID -
35103
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:
41.5297203
Std. Longitude:
-95.2258301
Datum:
WGS84
Township:
78N
Range:
38W
Section:
28
PLSS Details:
362 feet S and 968 feet W of the center of road corner in the NE 1/4, NW 1/4
Location Description:
approximately 3 miles N of Walnut, IA.
State:
Iowa
County:
IA165—Shelby
MLRA:
107—Iowa and Missouri Deep Loess Hills
Non-MLRA Soil Survey Area:
IA165—Shelby County, Iowa
PEDON
Describers Name:
R.I. Dideriksen and C.S. Fisher
Current Taxonomic Class:
Fine-silty, mixed, mesic Typic Hapludolls
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
1
Correlated Information:
Soil Name -
MARSHALL
PSC -
25 to 100 cm.
Classificaton Date -
7/16/2007
Sampled As Information:
Soil Name -
Marshall
Classificaton Date -
10/1/1963
Dynamic Soil Properties:
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Drainage Class:
well
Surface Fragments:
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
10/1/1963 (actual site observation date)
Surface Cover Properties:
Site Obs. Cover Kind 1 -
crop cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
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
—
—
—
—
270
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Ap—0 to 18 centimeters (0.0 to 7.1 inches); black (10YR 2/1) and black (10YR 2/1) rubbed and very dark brown (10YR 2/2) rubbed, dark gray (10YR 4/1), dry; silty clay loam; weak medium subangular blocky parts to weak fine granular structure; friable; 1 percent very dark brown (10YR 2/2) worm casts; fragments; slightly acid, pH 6.4, unspecified; abrupt smooth boundary. Lab sample # 40A11675. common fine and medium root channels; weak plow sole at 6-7 inches.
A12—18 to 40 centimeters (7.1 to 15.7 inches); black (10YR 2/1) and very dark brown (10YR 2/2) rubbed, dark gray (10YR 4/1), dry; silty clay loam; weak fine subangular blocky, and fine granular structure; friable; 10 percent very dark brown (10YR 2/2) worm casts; fragments; slightly acid, pH 6.2, unspecified; gradual smooth boundary. Lab sample # 40A11676. common fine and medium root channels; few fine peds of brown (10YR 4/3) in lower part.
A3—40 to 58 centimeters (15.7 to 22.8 inches); very dark grayish brown (10YR 3/2), dark gray (10YR 4/1) and grayish brown (10YR 5/2), dry; silty clay loam; weak fine subangular blocky structure; friable; 0.5 fine and medium tubular pores; fragments; slightly acid, pH 6.2, unspecified; clear smooth boundary. Lab sample # 40A11677. brown (10YR 4/3) peds are common; some 1/8 inch channel fills of very dark brown (10YR 2/2) material; kneaded color same.
B21—58 to 83 centimeters (22.8 to 32.7 inches); brown (10YR 4/3) and very dark grayish brown (10YR 3/2), pale brown (10YR 6/3), dry; silty clay loam; weak fine subangular blocky structure; friable; 0.5 fine tubular pores; 15 percent faint clay films; 1 percent very dark brown (10YR 2/2) worm casts; fragments; slightly acid, pH 6.4, unspecified; gradual smooth boundary. Lab sample # 40A11678. hue of horizon toward 2.5Y; some 1/2 inch spherical voids.; discontinuous - phpvsfiid 175037; discontinuous - phpvsfiid 175037
B22—83 to 95 centimeters (32.7 to 37.4 inches); brown (10YR 4/3) and yellowish brown (10YR 5/4) rubbed silty clay loam; 1 percent grayish brown (2.5Y 5/2) fine and 1 percent brown (7.5YR 4/4) fine mottles; weak medium prismatic parts to weak medium subangular blocky structure; 10.0 fine tubular pores; faint clay films on vertical faces of peds and 3 percent dark brown (10YR 3/3) oxide coats and 3 percent black (10YR 2/1) oxide coats; fragments; neutral, pH 6.6, unspecified; clear smooth boundary. Lab sample # 40A11679. discontinuous - phpvsfiid 175038; discontinuous - phpvsfiid 175038
B23—95 to 115 centimeters (37.4 to 45.3 inches); brown (10YR 4/3) and grayish brown (2.5Y 5/2) and olive gray (5Y 5/2) and yellowish brown (10YR 5/4) rubbed silty clay loam; 10 percent strong brown (7.5YR 5/6) fine and 10 percent brown (7.5YR 4/4) fine mottles; weak medium prismatic parts to weak medium subangular blocky structure; friable; 10.0 fine tubular pores; 3 percent faint clay films on vertical faces of peds and 15 percent dark brown (10YR 3/3) oxide coats and 15 percent black (10YR 2/1) oxide coats; fragments; neutral, pH 6.6, unspecified; gradual smooth boundary. Lab sample # 40A11680. very few 1/2 inch spherical voids.; discontinuous - phpvsfiid 175041; discontinuous - phpvsfiid 175041
B31—115 to 143 centimeters (45.3 to 56.3 inches); yellowish brown (10YR 5/4) and olive gray (5Y 5/2) silt loam; 25 percent yellowish brown (10YR 5/6) medium and 25 percent yellowish brown (10YR 5/8) medium mottles; weak medium prismatic parts to weak medium subangular blocky structure; firm; 10.0 fine tubular pores; 37 percent dark brown (10YR 3/3) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; slightly acid, pH 6.4, unspecified; diffuse smooth boundary. Lab sample # 40A11681
B32—143 to 160 centimeters (56.3 to 63.0 inches); yellowish brown (10YR 5/4) and olive gray (5Y 5/2) silt loam; 25 percent yellowish brown (10YR 5/6) medium and 25 percent yellowish brown (10YR 5/8) medium mottles; massive; 10.0 fine tubular pores; 37 percent dark brown (10YR 3/3) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; slightly acid, pH 6.4, unspecified; diffuse smooth boundary. Lab sample # 40A11682. some vertical cleavage; very few indistinct grainy silt coats on some cleavage faces.
C1—160 to 183 centimeters (63.0 to 72.0 inches); yellowish brown (10YR 5/4) and olive gray (5Y 5/2) silt loam; 25 percent yellowish brown (10YR 5/6) medium and 25 percent yellowish brown (10YR 5/8) medium mottles; massive; 10.0 fine tubular pores; 37 percent dark brown (10YR 3/3) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; slightly acid, pH 6.4, unspecified. Lab sample # 40A11683. same as horizon above but vertical cleavage may be absent; very few indistinct grainy silt coats on some cleavage faces.