IDENTIFIERS

Current Taxon Name (Soil Name): Speed

OSD

Series Extent

User Site ID: 1994MO203036M

User Pedon ID: 1994MO203036M

Transect:

Transect Stop Number - 1

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - MCL

Lab Pedon # - M9461336

NCSS Pedon Lab Data NASIS Record ID - 32097

User Project ID: 2021-25NCSPR013

Project Name: MLRA 116A - Mark Twain National Forest Update

Print Date: 12/4/2024

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: 37.0894111

Std. Longitude: -91.4045972

Datum: WGS84

State: Missouri

County: MO203—Shannon

MLRA: 116A—Ozark Highland

Non-MLRA Soil Survey Area: MO203—Shannon County, Missouri

7.5 Minute USGS Quad: 37091-A4—Bartlett, Missouri

PEDON

Describers Name: SV, LT

Current Taxonomic Class: Fine-silty, mixed, semiactive, mesic Argiaquic Argialbolls

Current Taxon Kind: taxadjunct

Pedon Type: taxadjunct to the series

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: Converted from PDP 3.x

Correlated Information:

Soil Name - Speed

PSC - 53 to 103 cm.

Classificaton Date - 10/31/2023

Classifier - Campbell and Meinert

Soil Taxonomic Edition - thirteenth edition

Moisture Class - aquic

Moisture Subclass - typic

Sampled As Information:

Soil Name - Gabriel

Taxonomic Class - Fine-silty, mixed, superactive, mesic Typic Argiaquolls

Taxon Kind - series

PSC - 76 to 126 cm.

Classificaton Date - 8/10/1994

Moisture Class - aquic

Moisture SUBClass - typic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

Certification Status: certified

QC Status: level 1

Field Measured Properties: 36 Cation exchange capacity to clay ratio

SITE

Parent Material: alluvium

Landscape: valley

Landform: stream terrace

Geomorphic Component Hills: base slope

Geomorphic Component Terraces: tread

Hill Slope Profile: toeslope

Slope Shape Across: concave

Slope Shape Down: linear

Drainage Class: poorly

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 8/10/1994 (actual site observation date)

Air Photo ID: 19

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
mollic epipedon albic horizon redox depletions with chroma 2 or less argillic horizon aquic conditions	0—33 33—76 33—33 76—137 76—137	—- —- —- —- —-

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	—	—	229	—	70	—	—	—	—	—	—	—	—	—	—	—	—	—	—

Ap1—0 to 18 centimeters (0.0 to 7.1 inches); very dark grayish brown (10YR 3/2), grayish brown (10YR 5/2), dry; silt loam; strong medium granular structure; friable; 8.0 very fine roots; 0.5 very fine tubular and 4.0 very fine interstitial pores; 15 percent distinct dark brown (7.5YR 3/3) iron stains; 1 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; slightly acid, pH 6.3, hellige-truog; clear smooth boundary. Lab sample # MU051833

Ap2—18 to 33 centimeters (7.1 to 13.0 inches); very dark grayish brown (10YR 3/2) silt loam; moderate medium subangular blocky structure; friable; 0.5 fine roots; 4.0 very fine interstitial pores; 15 percent faint pale red (2.5YR 6/2) silt coats and 35 percent distinct dark brown (7.5YR 3/2) iron stains; 1 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; slightly acid, pH 6.5, hellige-truog; clear wavy boundary. Lab sample # MU051834

E1—33 to 53 centimeters (13.0 to 20.9 inches); grayish brown (10YR 5/2) silt loam; 10 percent light brownish gray (10YR 6/2) fine distinct and 10 percent dark yellowish brown (10YR 3/6) fine prominent mottles; moderate medium subangular blocky structure; friable; 0.5 fine roots; 8.0 very fine tubular pores; 15 percent distinct gray (10YR 6/1) skeletans; 1 percent fine and medium iron-manganese concretions; 1 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; neutral, pH 6.6, hellige-truog; gradual wavy boundary. Lab sample # MU051835

E2—53 to 76 centimeters (20.9 to 29.9 inches); light brownish gray (10YR 6/2) silt loam; 1 percent yellowish brown (10YR 5/6) fine prominent and 10 percent gray (10YR 6/1) medium distinct mottles; moderate fine subangular blocky structure; friable; 0.1 fine roots; 8.0 very fine tubular pores; 15 percent distinct gray (10YR 6/1) skeletans; 10 percent fine and medium iron-manganese concretions; 1 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; neutral, pH 6.6, hellige-truog; gradual smooth boundary. Lab sample # MU051836

Btg1—76 to 91 centimeters (29.9 to 35.8 inches); gray (10YR 5/1) silty clay loam; 15 percent sand; 30 percent clay; 10 percent gray (10YR 6/1) medium distinct and 10 percent dark yellowish brown (10YR 4/6) medium prominent and 10 percent yellowish brown (10YR 5/6) medium prominent mottles; moderate medium subangular blocky structure; firm; 0.1 very fine roots; 4.0 fine tubular pores; 35 percent distinct dark gray (10YR 4/1) clay films on faces of peds; 1 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU051837

Btg2—91 to 109 centimeters (35.8 to 42.9 inches); gray (10YR 5/1) silty clay loam; 10 percent sand; 34 percent clay; 35 percent dark yellowish brown (10YR 4/6) coarse prominent mottles; moderate medium subangular blocky structure; firm; 0.1 very fine roots; 4.0 fine tubular pores; 15 percent distinct gray (10YR 5/1) clay films on faces of peds and in pores and 75 percent distinct iron stains; 1 percent fine and medium iron-manganese concretions; 7 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; neutral, pH 6.7, hellige-truog; gradual smooth boundary. Lab sample # MU051838

Btg3—109 to 122 centimeters (42.9 to 48.0 inches); gray (10YR 5/1) loam; 30 percent sand; 33 percent clay; 10 percent dark yellowish brown (10YR 4/6) coarse prominent mottles; moderate fine subangular blocky structure; firm; 0.1 very fine roots; 0.5 fine tubular pores; 15 percent distinct gray (10YR 5/1) clay films and 15 percent distinct iron stains; 10 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; neutral, pH 6.7, hellige-truog; gradual wavy boundary. Lab sample # MU051839

Btg4—122 to 137 centimeters (48.0 to 53.9 inches); gray (10YR 5/1) gravelly sandy clay loam; 20 percent sand; 36 percent clay; 10 percent dark yellowish brown (10YR 4/4) medium prominent mottles; weak fine subangular blocky structure; firm; 0.5 fine tubular pores; 15 percent faint dark gray (10YR 4/1) clay films; 20 percent by volume nonflat subrounded indurated 2-40-75 millimeter chert fragments; neutral, pH 6.6, hellige-truog. Lab sample # MU051840