IDENTIFIERS

Current Taxon Name (Soil Name): Union

OSD

Series Extent

User Site ID: 1997MO131067M

User Pedon ID: 1997MO131067

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - MCL

Lab Pedon # - M9713137

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: 38.1043000

Std. Longitude: -92.5569917

Datum: WGS84

Township: T39N

Range: R15W

Section: 22

PLSS Details: 3250 feet and 1900 feet W of the SE corner

Location Description: Southwest quarter, Northeast quarter, Sec. 22, T. 39 N., R. 15 W.

State: Missouri

County: MO131—Miller

MLRA: 116A—Ozark Highland

Non-MLRA Soil Survey Area: MO131—Miller County, Missouri

7.5 Minute USGS Quad: 38092-A5—Toronto, Missouri

PEDON

Describers Name: DWW, DEV, TOK

Current Taxonomic Class: Fine, mixed, active, mesic Oxyaquic Fragiudalfs

Current Taxon Kind: series

Pedon Type: classifies to current taxon name, full description

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: Converted from PDP 3.x

Correlated Information:

Soil Name - Union

PSC - 15 to 65 cm.

Classificaton Date - 11/14/2012

Classifier - J.R. Perkins

Soil Taxonomic Edition - eleventh edition

Moisture Subclass - udic

Sampled As Information:

Soil Name - Union

Taxonomic Class - Fine-silty, mixed Oxyaquic Fragiudalfs

Taxon Kind - series

PSC - 15 to 65 cm.

Classificaton Date - 8/20/1997

Moisture Class - udic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

Certification Status: certified

SITE

Parent Material: loess over pedisediment over residuum

Landscape: hills

Landform: interfluve

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Position: lower third

Slope Complexity: simple

Slope Shape Across: linear

Slope Shape Down: convex

Drainage Class: moderately well

Geology: Jefferson City Dolomite formation of the Ordovician group.

Surface Fragments:

Benchmark Soil?: yes

VEGETATION

SITE OBSERVATION

Observation Date: 8/20/1997 (actual site observation date)

Air Photo ID: 12A

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - hardwoods

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
fragipan	noncoherent	71 - 117	- 46 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon redox depletions with chroma 2 or less lithologic discontinuity fragipan lithologic discontinuity	0—15 15—203 51—117 71—117 71—117 117—203	—15— —188— —66— —46— —46— —86—

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	—	—	265	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

A—0 to 15 centimeters (0.0 to 5.9 inches); dark grayish brown (10YR 4/2), light brownish gray (10YR 6/2), dry; silt loam; weak fine granular structure; friable; common (4.0) medium roots and common (4.0) fine roots; fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU058387

Bt1—15 to 30 centimeters (5.9 to 11.8 inches); yellowish brown (10YR 5/4) silt loam; weak fine granular structure; friable; common (3.0) medium roots and common (3.0) fine roots; 10 percent faint dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; fragments; strongly acid, pH 5.1, hellige-truog; clear smooth boundary. Lab sample # MU058388. patchy - phpvsfiid 126919; patchy - phpvsfiid 126919

Bt2—30 to 51 centimeters (11.8 to 20.1 inches); yellowish brown (10YR 5/6) silty clay loam; weak fine subangular blocky structure; firm; common (3.0) medium roots and common (3.0) fine roots; 10 percent faint dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; fragments; very strongly acid, pH 5.0, hellige-truog; clear smooth boundary. Lab sample # MU058389. patchy - phpvsfiid 126920; patchy - phpvsfiid 126920

Bt3—51 to 71 centimeters (20.1 to 28.0 inches); yellowish brown (10YR 5/6) silty clay loam; moderate medium subangular blocky structure; firm; common (3.0) medium roots and common (3.0) fine roots; 20 percent distinct dark yellowish brown (10YR 4/4), moist, clay films on faces of peds; 20 percent dark grayish brown (10YR 4/2), moist, iron depletions; fragments; very strongly acid, pH 4.9, hellige-truog; clear smooth boundary. Lab sample # MU058390. patchy - phpvsfiid 126930; patchy - phpvsfiid 126930

2Btx1—71 to 97 centimeters (28.0 to 38.2 inches); 50 percent yellowish brown (10YR 5/6) and 30 percent grayish brown (10YR 5/2) and 20 percent brown (10YR 5/3) silt loam; moderate coarse prismatic parts to weak fine subangular blocky structure; extremely firm; brittle; common (1.0) fine roots between peds; 25 percent dark grayish brown (10YR 4/2), moist, iron depletions; 5 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 5.0, hellige-truog; gradual smooth boundary. Lab sample # MU058391. 60% brittleness; 6 inches between seams

2Btx2—97 to 117 centimeters (38.2 to 46.1 inches); 70 percent yellowish brown (10YR 5/6) and 30 percent grayish brown (10YR 5/2) extremely gravelly silt loam; weak coarse prismatic parts to weak fine subangular blocky structure; very firm; brittle; 5 percent distinct dark grayish brown (10YR 4/2) clay films on faces of peds; 5 percent dark grayish brown (10YR 4/2), moist, iron depletions; 5 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 60 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; very strongly acid, pH 4.8, hellige-truog; gradual smooth boundary. Lab sample # MU058392. 70% brittleness; 9 inches between seams; patchy - phpvsfiid 126931; patchy - phpvsfiid 126931

3Bt1—117 to 152 centimeters (46.1 to 59.8 inches); 70 percent yellowish red (5YR 5/6) and 30 percent red (2.5YR 4/6) extremely gravelly clay; moderate medium subangular blocky structure; firm; 30 percent distinct reddish brown (5YR 4/4) clay films on faces of peds; 10 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 55 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; moderately acid, pH 5.7, hellige-truog; gradual smooth boundary. Lab sample # MU058393. patchy - phpvsfiid 126932; patchy - phpvsfiid 126932

3Bt2—152 to 203 centimeters (59.8 to 79.9 inches); 85 percent dark red (2.5YR 3/6) and 5 percent red (2.5YR 4/8) and 10 percent strong brown (7.5YR 5/6) cobbly clay; strong medium subangular blocky structure; firm; 25 percent distinct dark reddish brown (2.5YR 3/4) clay films on faces of peds; 10 percent by volume subangular 75-162-250 millimeter limestone, cherty fragments and 20 percent by volume subangular 2-39-75 millimeter limestone, cherty fragments; neutral, pH 7.0, hellige-truog. Lab sample # MU058394. patchy - phpvsfiid 126933; patchy - phpvsfiid 126933