IDENTIFIERS

Current Taxon Name (Soil Name): Gravois

OSD

Series Extent

User Site ID: 1995MO051051

User Pedon ID: 1995MO051051

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - MCL

Lab Pedon # - M9505116

NCSS Pedon Lab Data NASIS Record ID - 33649

Print Date: 12/11/2024

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: 38.3712688

Std. Longitude: -92.2437619

Datum: WGS84

Range: R12W

Section: 22

Location Description: Harry Bexten Property; about 150' upslope from pedon #50; sec 22, T 42 N R 12 W

State: Missouri

County: MO051—Cole

MLRA: 116B—Springfield Plain

PEDON

Describers Name: JLB, GC

Current Taxon Kind: series

Pedon Type: within range of map unit

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from PDP 3.x

Sampled As Information:

Soil Name - Gravois

PSC - 18 to 69 cm.

Classificaton Date - 2/23/1995

Moisture Class - udic

Dynamic Soil Properties:

Erosion Class - 2

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: colluvium and/or residuum weathered from cherty limestone

Landscape: upland

Landform: hillside

Geomorphic Component Hills: side slope

Hill Slope Profile: footslope

Slope Position: upper third

Slope Shape Across: convex

Slope Shape Down: concave

Drainage Class: moderately well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 2/23/1995 (actual site observation date)

Air Photo ID: 4-78

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	0—18 18—203	—- —-

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
12	—	—	186	—	270	991	—	—	12.8	23.9	0	—	—	—	—	—	4271	Jefferson City Water Plant	nonrecording

Ap—0 to 18 centimeters (0.0 to 7.1 inches); brown (10YR 4/3) silt loam; weak fine granular structure; friable; 6.0 very fine roots; 3.0 fine dendritic tubular pores; 7 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 5.9, hellige-truog; abrupt smooth boundary. Lab sample # MU052557

Bt1—18 to 30 centimeters (7.1 to 11.8 inches); dark yellowish brown (10YR 4/6) silt loam; moderate fine subangular blocky structure; firm; 3.0 very fine roots; 0.5 fine tubular pores; 10 percent distinct silt coats on vertical faces of peds and 30 percent distinct clay films on faces of peds; 1 percent fine spherical iron-manganese concretions between peds; 1 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.2, hellige-truog; clear smooth boundary. Lab sample # MU052558. Piezometer at top of horizon; discontinuous - phpvsfiid 146789; discontinuous - phpvsfiid 146790; discontinuous - phpvsfiid 146789; discontinuous - phpvsfiid 146790

Bt2—30 to 53 centimeters (11.8 to 20.9 inches); dark yellowish brown (10YR 4/6) silty clay loam; moderate fine subangular blocky structure; firm; 3.0 very fine roots; 0.5 fine tubular pores; 10 percent prominent silt coats on vertical faces of peds and 60 percent distinct clay films on faces of peds; 1 percent fine spherical iron-manganese concretions between peds; 1 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.1, hellige-truog; clear smooth boundary. Lab sample # MU052559. discontinuous - phpvsfiid 146791; discontinuous - phpvsfiid 146792; discontinuous - phpvsfiid 146791; discontinuous - phpvsfiid 146792

Bt3—53 to 64 centimeters (20.9 to 25.2 inches); dark yellowish brown (10YR 4/6) silty clay loam; 1 percent grayish brown (10YR 5/2) fine prominent mottles; moderate fine subangular blocky structure; firm; 2.0 very fine roots throughout; 0.5 fine tubular pores; 10 percent prominent manganese or iron-manganese stains on faces of peds and 30 percent distinct clay films on faces of peds and 30 percent distinct silt coats on vertical faces of peds; 1 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 5.6, hellige-truog; gradual smooth boundary. Lab sample # MU052560. continuous - phpvsfiid 146793; discontinuous - phpvsfiid 146794; patchy - phpvsfiid 146795; continuous - phpvsfiid 146793; discontinuous - phpvsfiid 146794; patchy - phpvsfiid 146795

2Btx1—64 to 89 centimeters (25.2 to 35.0 inches); 50 percent dark yellowish brown (10YR 4/4) and 50 percent dark yellowish brown (10YR 4/6) silty clay loam; 1 percent strong brown (7.5YR 5/8) fine prominent and 10 percent grayish brown (10YR 5/2) fine distinct mottles; weak medium prismatic parts to weak medium subangular blocky structure; very firm; brittle; 0.5 very fine roots between peds; 0.5 fine tubular pores; 10 percent prominent manganese or iron-manganese stains on faces of peds and 30 percent distinct clay films on vertical faces of peds and 30 percent prominent silt coats on vertical faces of peds; 5 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.5, hellige-truog; clear smooth boundary. Lab sample # MU052561. 25% brittle matrix Piezometer at top of horizon; continuous - phpvsfiid 146796; continuous - phpvsfiid 146797; patchy - phpvsfiid 146798; continuous - phpvsfiid 146796; continuous - phpvsfiid 146797; patchy - phpvsfiid 146798

3Btx2—89 to 137 centimeters (35.0 to 53.9 inches); dark yellowish brown (10YR 4/4) extremely gravelly clay loam; 1 percent strong brown (7.5YR 5/8) fine prominent and 10 percent grayish brown (10YR 5/2) fine distinct mottles; weak medium prismatic parts to moderate fine subangular blocky structure; very firm; brittle; 0.5 very fine roots; 0.5 fine tubular pores; 10 percent prominent clay films on vertical faces of peds and 10 percent prominent silt coats on vertical faces of peds and 30 percent prominent manganese or iron-manganese stains on faces of peds; 5 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 10 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.1, hellige-truog; gradual smooth boundary. Lab sample # MU052562. 20% brittle matrix piezometer at top of horizon; discontinuous - phpvsfiid 146799; patchy - phpvsfiid 146801; discontinuous - phpvsfiid 146800; discontinuous - phpvsfiid 146799; patchy - phpvsfiid 146801; discontinuous - phpvsfiid 146800

3Btx3—137 to 165 centimeters (53.9 to 65.0 inches); 50 percent strong brown (7.5YR 4/6) and 50 percent dark yellowish brown (10YR 4/4) extremely gravelly silt loam; 1 percent grayish brown (10YR 5/2) fine prominent mottles; moderate fine subangular blocky structure; very firm; brittle; 0.5 very fine roots; 0.5 fine tubular pores; 10 percent prominent silt coats on faces of peds and 10 percent prominent manganese or iron-manganese stains on faces of peds and 30 percent distinct clay films on faces of peds; 15 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 45 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; strongly acid, pH 5.3, hellige-truog; gradual smooth boundary. Lab sample # MU052563. 10% brittle matrix; discontinuous - phpvsfiid 146802; patchy - phpvsfiid 146803; patchy - phpvsfiid 146804; discontinuous - phpvsfiid 146802; patchy - phpvsfiid 146803; patchy - phpvsfiid 146804

3Bt—165 to 203 centimeters (65.0 to 79.9 inches); strong brown (7.5YR 5/6) very gravelly silty clay loam; 1 percent grayish brown (10YR 5/2) fine prominent mottles; moderate fine subangular blocky structure; friable; 0.5 very fine roots; 0.5 fine tubular pores; 10 percent prominent silt coats on vertical faces of peds and 30 percent distinct clay films on faces of peds and 30 percent prominent manganese or iron-manganese stains on faces of peds; 5 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 40 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; slightly acid, pH 6.1, hellige-truog. Lab sample # MU052564. discontinuous - phpvsfiid 146805; patchy - phpvsfiid 146807; discontinuous - phpvsfiid 146806; discontinuous - phpvsfiid 146805; patchy - phpvsfiid 146807; discontinuous - phpvsfiid 146806