IDENTIFIERS

Current Taxon Name (Soil Name): Plato

OSD

Series Extent

User Site ID: 1994MO125002S

User Pedon ID: 1994MO125002

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 95P0337

Print Date: 12/17/2024

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: 38.2633324

Std. Longitude: -91.8658371

Datum: WGS84

Township: T41N

Range: R9W

Section: 36

PLSS Details: 300 feet N and 100 feet W of the SE corner

State: Missouri

County: MO125—Maries

MLRA: 116A—Ozark Highland

Non-MLRA Soil Survey Area: MO125—Maries County, Missouri

7.5 Minute USGS Quad: 38091-B7—Paydown, Missouri

PEDON

Current Taxonomic Class: Fine, mixed Aquic Fragiudalfs

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: Converted from PDP 3.x

Pedon #: 2

Sampled As Information:

Soil Name - Plato

Taxonomic Class - Fine, mixed Aquic Fragiudalfs

Taxon Kind - series

PSC - 30 to 80 cm.

Classificaton Date - 5/1/1994

Moisture Class - udic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: loess derived from mixed

Landscape: hills

Landform: ridge

Drainage Class: somewhat poorly

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/1/1994 (actual site observation date)

Surface Cover Properties:

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
2	—	—	259	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 5/3) interior silt loam; moderate fine granular structure; friable; 3.0 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine moderate-continuity vesicular pores; 3 percent fine spherical iron-manganese concretions throughout; fragments; moderately alkaline, pH 8.1, hellige-truog; clear smooth boundary. Lab sample # 95P02627. All gravels throughout this pedon are chert.

E—20 to 30 centimeters (7.9 to 11.8 inches); 75 percent pale brown (10YR 6/3) interior silt loam; 3 percent light brownish gray (10YR 6/2) fine faint irregular and 3 percent yellowish brown (10YR 5/4) fine faint irregular mottles; moderate fine subangular blocky structure; friable; 3.0 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine moderate-continuity vesicular pores; 3 percent fine spherical iron-manganese concretions throughout; fragments; moderately alkaline, pH 8.1, hellige-truog; clear wavy boundary. Lab sample # 95P02628

Bt1—30 to 53 centimeters (11.8 to 20.9 inches); 70 percent strong brown (7.5YR 4/6) interior silty clay; 21 percent brown (7.5YR 5/2) medium prominent irregular mottles; moderate fine prismatic parts to moderate fine subangular blocky structure; firm; 0.5 very fine roots throughout; 0.5 very fine moderate-continuity vesicular pores; 30 percent prominent clay films on faces of peds and 30 percent prominent clay films on tops of soil columns; fragments; extremely acid, pH 4.0, hellige-truog; clear smooth boundary. Lab sample # 95P02629. continuous - phpvsfiid 181769; continuous - phpvsfiid 194357; continuous - phpvsfiid 181769; continuous - phpvsfiid 194357

Bt2—53 to 81 centimeters (20.9 to 31.9 inches); 50 percent dark yellowish brown (10YR 4/6) interior and 49 percent grayish brown (10YR 5/2) interior silty clay loam; 1 percent strong brown (7.5YR 4/6) fine distinct irregular mottles; moderate medium prismatic parts to moderate fine subangular blocky structure; firm; 0.5 very fine roots throughout; 0.5 very fine moderate-continuity vesicular pores; 30 percent distinct clay films on faces of peds; fragments; extremely acid, pH 4.0, hellige-truog; clear smooth boundary. Lab sample # 95P02630. discontinuous - phpvsfiid 194358; discontinuous - phpvsfiid 194358

2Btx1—81 to 97 centimeters (31.9 to 38.2 inches); dark yellowish brown (10YR 4/4) interior silt loam; weak very coarse prismatic structure; extremely firm*; 3.0 very fine and fine moderate-continuity vesicular pores; 30 percent prominent clay films on faces of peds; fragments; extremely acid, pH 4.0, hellige-truog; clear smooth boundary. Lab sample # 95P02631. discontinuous - phpvsfiid 194359; discontinuous - phpvsfiid 194359

2Btx2—97 to 122 centimeters (38.2 to 48.0 inches); brown (10YR 5/3) interior silt loam; weak very coarse prismatic structure; extremely firm*; 3.0 very fine and fine moderate-continuity vesicular pores; 30 percent distinct clay films on faces of peds; fragments; extremely acid, pH 4.0, hellige-truog; clear smooth boundary. Lab sample # 95P02632. discontinuous - phpvsfiid 194360; discontinuous - phpvsfiid 194360

2Btx3—122 to 135 centimeters (48.0 to 53.1 inches); 65 percent yellowish brown (10YR 5/4) interior very gravelly silt loam; 21 percent pale brown (10YR 6/3) fine faint irregular mottles; weak very coarse prismatic structure; extremely firm*; 0.5 very fine moderate-continuity vesicular pores; 1 percent fine spherical iron-manganese concretions throughout; 40 percent by volume subrounded 2-39-75 millimeter unspecified fragments; extremely acid, pH 4.0, hellige-truog; clear smooth boundary. Lab sample # 95P02633

2Btx4—135 to 165 centimeters (53.1 to 65.0 inches); pale brown (10YR 6/3) interior extremely gravelly silt loam; weak very fine massive; extremely firm*; 0.5 very fine moderate-continuity vesicular pores; 5 percent by volume subrounded 75-162-250 millimeter unspecified fragments and 65 percent by volume subrounded 2-39-75 millimeter unspecified fragments; slightly acid, pH 6.3, hellige-truog. Lab sample # 95P02634