IDENTIFIERS

Current Taxon Name (Soil Name): Marshall

OSD

Series Extent

User Site ID: S1963IA165002

User Pedon ID: S1963IA165002

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 40A0217

NCSS Pedon Lab Data NASIS Record ID - 32746

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: -95.2269440

Datum: WGS84

Township: 78N

Range: 38W

Section: 28

PLSS Details: 434 feet S and 1224 feet W of 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, superactive, mesic Typic Hapludolls

Current Taxon Kind: series

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 2

Correlated Information:

Soil Name - Marshall

PSC - 25 to 100 cm.

Classificaton Date - 7/11/2007

Moisture Class - udic

Sampled As Information:

Soil Name - Marshall

Classificaton Date - 10/1/1963

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Geomorphic Component Hills: interfluve

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
3	—	—	—	—	270	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap—0 to 18 centimeters (0.0 to 7.1 inches); very dark brown (10YR 2/2), dark gray (10YR 4/1) and grayish brown (10YR 5/2), dry; silty clay loam; weak medium subangular blocky parts to weak fine granular structure; friable; fragments; slightly acid, pH 6.4, unspecified; clear smooth boundary. Lab sample # 40A01614. kneaded color the same as moist color; common fine and medium root channels; weak plow sole at 6-8 inches.

A12—18 to 33 centimeters (7.1 to 13.0 inches); very dark brown (10YR 2/2) and very dark grayish brown (10YR 3/2) rubbed, grayish brown (10YR 5/2), dry; silty clay loam; weak fine subangular blocky, and fine granular structure; friable; 1 percent worm casts; fragments; slightly acid, pH 6.4, unspecified; clear smooth boundary. Lab sample # 40A01615. common fine and medium root channels; common dark brown and brown peds in lower part.

A3—33 to 45 centimeters (13.0 to 17.7 inches); brown (10YR 4/3) and very dark grayish brown (10YR 3/2) and 30 percent brown (10YR 4/3) and dark brown (10YR 3/3) rubbed and very dark grayish brown (10YR 3/2) rubbed, grayish brown (10YR 5/2) and pale brown (10YR 6/3), dry; silty clay loam; weak fine subangular blocky structure; friable; 3.0 very fine and fine tubular pores; 3 percent faint black stains on faces of peds; 1 percent worm casts; fragments; slightly acid, pH 6.4, unspecified; clear smooth boundary. Lab sample # 40A01616. few dark wormcasts and fills in old root channels.; discontinuous - phpvsfiid 191596; discontinuous - phpvsfiid 191596

B21—45 to 68 centimeters (17.7 to 26.8 inches); yellowish brown (10YR 5/4), brown (10YR 4/3) and pale brown (10YR 6/3), dry; silty clay loam; weak fine subangular blocky structure; friable; 3.0 very fine and fine tubular pores; faint clay films on faces of peds; fragments; slightly acid, pH 6.5, unspecified; gradual smooth boundary. Lab sample # 40A01617. very few dark fills in old root channels.; discontinuous - phpvsfiid 191597; discontinuous - phpvsfiid 191597

B22—68 to 85 centimeters (26.8 to 33.5 inches); yellowish brown (10YR 5/4) and brown (10YR 4/3) silty clay loam; 1 percent dark yellowish brown (10YR 4/4) fine and 10 percent grayish brown (2.5Y 5/2) fine mottles; weak medium prismatic parts to weak medium subangular blocky structure; friable; 3.0 very fine and fine tubular pores; 15 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; slightly acid, pH 6.5, unspecified; gradual smooth boundary. Lab sample # 40A01618. discontinuous - phpvsfiid 191598; discontinuous - phpvsfiid 191598

B31—85 to 113 centimeters (33.5 to 44.5 inches); yellowish brown (10YR 5/4) silt loam; 10 percent brown (7.5YR 4/4) fine and 10 percent dark brown (10YR 3/3) fine and 25 percent grayish brown (2.5Y 5/2) medium mottles; weak medium prismatic parts to weak medium subangular blocky structure; friable; 10.0 very fine and fine tubular pores; 37 percent dark brown (10YR 3/3) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; neutral, pH 6.6, unspecified; gradual smooth boundary. Lab sample # 40A01619. less clay films than above; oxides are yellowish brown (10YR 5/4) when kneaded.

B32—113 to 128 centimeters (44.5 to 50.4 inches); yellowish brown (10YR 5/4) and olive gray (5Y 5/2) silt loam; 10 percent brown (7.5YR 4/4) fine mottles; weak medium prismatic parts to weak medium subangular blocky structure; friable; 10.0 very fine and fine tubular pores; 3 percent faint silt coats on vertical faces of peds and 37 percent dark brown (10YR 3/3) oxide coats and 37 percent black (10YR 2/1) oxide coats; fragments; slightly acid, pH 6.5, unspecified; diffuse smooth boundary. Lab sample # 40A01620. some darker fills in vertical channels.

C1—128 to 148 centimeters (50.4 to 58.3 inches); brown (7.5YR 4/4) and olive gray (5Y 5/2) silt loam; massive; friable; 10.0 very fine and fine tubular pores; 3 percent faint silt coats on vertical faces of peds; fragments; neutral, pH 6.6, unspecified; diffuse smooth boundary. Lab sample # 40A01621. slight increase in accumulations of oxides; some vertical cleavage.

C2—148 to 173 centimeters (58.3 to 68.1 inches); yellowish brown (10YR 5/6) and olive gray (5Y 5/2) silt loam; massive; friable; 10.0 very fine and fine tubular pores; faint silt coats on faces of peds; fragments; neutral, pH 6.8, unspecified; diffuse smooth boundary. Lab sample # 40A01622. some vertical cleavage; slight increase in accumulations of oxides.

C3—173 to 193 centimeters (68.1 to 76.0 inches); yellowish brown (10YR 5/6) and olive gray (5Y 5/2) silt loam; massive; friable; 10.0 very fine and fine tubular pores; faint silt coats on faces of peds; fragments; neutral, pH 6.8, unspecified. Lab sample # 40A01623. same as above horizon but no cleavage noted.