IDENTIFIERS

Current Taxon Name (Soil Name): Ursa

OSD

Series Extent

User Site ID: 1978IL157043

User Pedon ID: 1978IL157043

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - IL SCL

Lab Pedon # - 78IL157043

NCSS Pedon Lab Data NASIS Record ID - 21067

Print Date: 11/21/2024

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: 38.2180222

Std. Longitude: -89.9844881

Datum: WGS84

Township: 4S

Range: 8W

Section: 4

PLSS Details: 1320 feet S & 1160 feet W of NE corner

State: Illinois

County: IL157—Randolph

MLRA: 114—Southern Illinois and Indiana Thin Loess and Till Plain

Non-MLRA Soil Survey Area: IL157—Randolph County, Illinois

7.5 Minute USGS Quad: 38089-B8—Red Bud, Illinois

PEDON

Describers Name: CCM, RWS

Current Taxonomic Class: Fine, smectitic, mesic Chromic Vertic Hapludalfs

Current Taxon Kind: taxadjunct

Pedon Type: map unit inclusion

Pedon Purpose: soil survey inventory

Pedon Record Orgin: PedonPC

Pedon #: 43

Correlated Information:

Soil Name - Ursa

PSC - 25 to 75 cm.

Classificaton Date - 1/4/2010

Moisture Class - udic

Sampled As Information:

Soil Name - Westmore

Classificaton Date - 10/1/1978

Dynamic Soil Properties:

Erosion Class - 3

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: Roxana loess over Illinoian glacial till containing strongly developed Sangamon age paleosol over siltstone and claystone residuum over calcareous interbedded siltsone and claystone bedrock

Landscape: till plain, upland

Landform: drainageway

Slope Shape Across: convex

Runoff: high

Drainage Class: moderately well

Bedrock: strongly coherent siltstone, calcareous at 150cm

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 10/1/1978 (actual site observation date)

Air Photo ID:

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - hayland

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Yield Study ID -

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
bedrock, lithic	strongly coherent	150 - 165	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon slickensides lithic contact	0—25 25—124 91—124 150—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
11	—	—	128	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap—0 to 25 centimeters (0.0 to 9.8 inches); brown (10YR 4/3) silt loam; moderate medium granular, and structureless massive; firm; 3.0 roots between peds; fragments; slightly acid, pH 6.5, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26137; observed in pit, small

B21t—25 to 41 centimeters (9.8 to 16.1 inches); yellowish brown (10YR 5/4) silty clay loam; 10 percent reddish yellow (5YR 6/8) medium prominent and 25 percent strong brown (7.5YR 5/6) medium distinct mottles; moderate fine subangular blocky structure; firm; 3.0 roots between peds; distinct brown (7.5YR 5/3), moist, clay films on all faces of peds; fragments; strongly acid, pH 5.1, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26138; observed in pit, small. patchy - phpvsfiid 480302; patchy - phpvsfiid 480302

B22t—41 to 51 centimeters (16.1 to 20.1 inches); brown (10YR 5/3) and grayish brown (10YR 5/2) silty clay loam; 10 percent reddish yellow (7.5YR 6/6) medium distinct and 25 percent reddish yellow (5YR 6/8) medium prominent mottles; moderate fine subangular blocky structure; firm; distinct pale brown (10YR 6/3), moist, silt coats on all faces of peds and faint brown (10YR 5/3), moist, clay films on all faces of peds; fragments; very strongly acid, pH 4.7, lamotte-morgan; abrupt smooth boundary. Lab sample # IL26139; observed in pit, small. continuous - phpvsfiid 480303; patchy - phpvsfiid 480304; continuous - phpvsfiid 480303; patchy - phpvsfiid 480304

IIB23t—51 to 69 centimeters (20.1 to 27.2 inches); pale brown (10YR 6/3) and grayish brown (10YR 5/2) silty clay loam; 10 percent brownish yellow (10YR 6/8) medium prominent and 10 percent reddish yellow (5YR 6/8) medium prominent mottles; moderate medium prismatic parts to moderate medium angular blocky structure; firm; distinct dark grayish brown (10YR 4/2), moist, clay films on all faces of peds; 5 percent by volume angular strongly coherent cemented mixed fragments; strongly acid, pH 5.3, lamotte-morgan; clear smooth boundary. Lab sample # IL26140; observed in pit, small. patchy - phpvsfiid 480300; patchy - phpvsfiid 480300

IIB24t—69 to 91 centimeters (27.2 to 35.8 inches); strong brown (7.5YR 5/6) silty clay; 25 percent brownish yellow (10YR 6/6) medium distinct mottles; moderate coarse prismatic parts to weak medium angular blocky structure; very firm; distinct grayish brown (10YR 5/2), moist, clay films on all faces of peds; 10 percent prominent iron-manganese masses in matrix; 10 percent by volume angular strongly coherent cemented mixed fragments; moderately acid, pH 6.0, lamotte-morgan; clear smooth boundary. Lab sample # IL26141; observed in pit, small. continuous - phpvsfiid 480301; continuous - phpvsfiid 480301

IIIB25t—91 to 124 centimeters (35.8 to 48.8 inches); yellowish brown (10YR 5/6) gravelly clay; 10 percent brownish yellow (10YR 6/8) medium distinct mottles; moderate very coarse prismatic structure; very firm; distinct dark yellowish brown (10YR 4/4), moist, clay films on all faces of peds and slickensides (pedogenic) on vertical faces of peds; 18 percent by volume angular strongly coherent cemented mixed fragments; neutral, pH 7.0, lamotte-morgan; gradual smooth boundary. Lab sample # IL26142; observed in pit, small. continuous - phpvsfiid 480298; continuous - phpvsfiid 480298

IIIC—124 to 150 centimeters (48.8 to 59.1 inches); light gray (2.5Y 7/1) and olive yellow (2.5Y 6/6) very channery clay; structureless massive; very firm; 80 percent by volume angular strongly coherent cemented mixed fragments; slightly alkaline, pH 7.5, lamotte-morgan; clear irregular boundary.; observed in pit, small

R—150 to 165 centimeters (59.1 to 65.0 inches); bedrock; angular strongly coherent cemented siltstone, unspecified fragments and angular strongly coherent cemented claystone fragments; slight effervescence, by hcl, unspecified; slightly alkaline, pH 7.6, lamotte-morgan.; observed in pit, small