IDENTIFIERS

  • Current Taxon Name (Soil Name): Mexico
  • OSD
  • Series Extent
  • User Site ID: 2004MO219050
  • User Pedon ID: 2004MO219050
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - MCL
  • Lab Pedon # - M0421950
  • NCSS Pedon Lab Data NASIS Record ID - 30435
  • Print Date: 2/17/2025

    • 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: 38.8228389
  • Std. Longitude: -90.9979861
  • Datum: WGS84
  • Township: T47N
  • Range: R1W
  • Section: 23
  • PLSS Details: 120 feet east and 1490 feet south of the northwest corner
  • Location Description: Clay Pigeon Site. Located on a gentle slope of summit knob. <1/4 mile S of I-70 & RR on east side of Springtouh Rd.l
  • Country: US—United States
  • State: Missouri
  • County: MO219—Warren
  • MLRA: 113—Central Claypan Areas
  • Non-MLRA Soil Survey Area: MO603—Montgomery and Warren Counties, Missouri
  • 7.5 Minute USGS Quad: 38090-G8—Foristell, Missouri

    • PEDON

  • Describers Name: Mike Chalfant, LeAnn Bullard, Wyn Kelley
  • Current Taxonomic Class: Fine, smectitic, mesic Albaquic Hapludalfs
  • Current Taxon Kind: family
  • Pedon Type: within range of map unit
  • Pedon Purpose: research site
  • Pedon Record Orgin: Windows Pedon
  • Pedon #: 50
  • Sampled As Information:
  • Soil Name - Mexico
  • Taxonomic Class - Fine, smectitic, mesic Albaquic Hapludalfs
  • PSC - 38 to 89 cm.
  • Classificaton Date - 1/14/2004
  • Soil Taxonomic Edition - ninth edition
  • Moisture SUBClass - aquic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: upland
  • Landform: ridge
  • Geomorphic Component Hills: interfluve
  • Hill Slope Profile: shoulder
  • Slope Position: upper third
  • Slope Complexity: simple
  • Slope Shape Across: concave
  • Slope Shape Down: linear
  • Runoff: medium
  • Drainage Class: somewhat poorly
  • Flooding: none flooding
  • Ponding: none ponding
  • Geology: Holocene Stage formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 1/14/2004 (actual site observation date)
  • Air Photo ID: 38090g8nw
  • Surface Water Kind: none observed
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - pastureland, tame
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Site Erosion Accelerated: water erosion gully
    • Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    ochric epipedon

    argillic horizon

    abrupt textural change

    0—38

    30—533

    38—

    —0—

    —0—

    —0—
    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

    4

    —

    —

    221.9

    —

    288

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark brown (10YR 3/3) interior silt loam; weak fine granular, and moderate very fine subangular blocky structure; very friable; 7.0 very fine and fine roots; 7.0 very fine and fine pores; fragments; abrupt smooth boundary. Lab sample # MU026241. Peorria Loess
    EA—18 to 38 centimeters (7.1 to 15.0 inches); brown (10YR 4/3) interior silt loam; moderate fine subangular blocky structure; very friable; 7.0 very fine and fine roots; 7.0 very fine and fine pores; 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish red (5YR 5/8), moist, iron depletions with clear boundaries in matrix; fragments; abrupt smooth boundary. Lab sample # MU026242
    Bt—38 to 76 centimeters (15.0 to 29.9 inches); brown (10YR 4/3) interior silty clay; moderate very fine subangular blocky structure; very firm; 3.0 very fine and fine roots; 3.0 very fine and fine pores; 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/8), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026243
    Btg1—76 to 116 centimeters (29.9 to 45.7 inches); 45 percent brown (10YR 4/3) interior and 55 percent grayish brown (10YR 5/2) interior silty clay loam; moderate very fine subangular blocky structure; firm; 0.9 very fine roots; 3.0 very fine tubular pores; 1 percent medium faint irregular noncoherent cemented dark yellowish brown (10YR 4/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; gradual smooth boundary. Lab sample # MU026244
    2Btg2—116 to 146 centimeters (45.7 to 57.5 inches); grayish brown (10YR 5/2) interior silt loam; moderate fine subangular blocky, and moderate medium platy structure; firm; 3.0 very fine tubular and 0.9 fine tubular pores; 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026245. discontinuous - phpvsfiid 886469; discontinuous - phpvsfiid 886469
    2Btg3—146 to 183 centimeters (57.5 to 72.0 inches); grayish brown (10YR 5/2) interior silty clay loam; moderate medium subangular blocky, and moderate coarse prismatic structure; firm; 3.0 very fine tubular and 0.9 fine tubular pores; 15 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; fragments; clear smooth boundary. Lab sample # MU026246. patchy - phpvsfiid 886470; patchy - phpvsfiid 886470
    3Btg4—183 to 244 centimeters (72.0 to 96.1 inches); grayish brown (10YR 5/2) interior silt loam; moderate medium subangular blocky, and moderate coarse prismatic structure; firm; 0.9 very fine tubular pores; 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/4), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; clear smooth boundary. Lab sample # MU026247. 1st Till deposit; discontinuous - phpvsfiid 886471; discontinuous - phpvsfiid 886471
    3Btssg1—244 to 335 centimeters (96.1 to 131.9 inches); gray (10YR 5/1) interior silty clay; moderate medium subangular blocky, and strong coarse prismatic structure; very firm; 5 percent distinct slickensides (pedogenic) and 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix; 1 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; clear smooth boundary. patchy - phpvsfiid 886473; discontinuous - phpvsfiid 886472; patchy - phpvsfiid 886473; discontinuous - phpvsfiid 886472
    3Btssg2—335 to 427 centimeters (131.9 to 168.1 inches); grayish brown (10YR 5/2) interior silty clay; moderate medium subangular blocky, and moderate coarse prismatic, and weak thick platy structure; very firm; 15 percent distinct pressure faces and 15 percent faint slickensides (pedogenic) and 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 1 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; clear smooth boundary. patchy - phpvsfiid 886475; discontinuous - phpvsfiid 886474; patchy - phpvsfiid 886476; patchy - phpvsfiid 886475; discontinuous - phpvsfiid 886474; patchy - phpvsfiid 886476
    3Btssg3—427 to 533 centimeters (168.1 to 209.8 inches); 45 percent yellowish brown (10YR 5/6) interior and 55 percent black (10YR 5/1) interior silty clay; moderate medium angular blocky, and weak coarse prismatic, and weak thick platy structure; very firm; 5 percent distinct slickensides (pedogenic) and 15 percent distinct pressure faces and 35 percent distinct clay films on all faces of peds; 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 2 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; clear smooth boundary. 2 grey joints; discontinuous - phpvsfiid 886481; patchy - phpvsfiid 886482; patchy - phpvsfiid 886483; discontinuous - phpvsfiid 886481; patchy - phpvsfiid 886482; patchy - phpvsfiid 886483
    3Cdk—533 to 657 centimeters (209.8 to 258.7 inches); yellowish brown (10YR 5/6) interior clay loam; massive; firm; 7.0 very fine tubular pores; 5 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented strong brown (7.5YR 5/8), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 3 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; strong effervescence; clear smooth boundary. Many Joints possibly, 3ctdkb; patchy - phpvsfiid 886477; patchy - phpvsfiid 886477
    4Bk1—657 to 770 centimeters (258.7 to 303.1 inches); yellowish brown (10YR 5/6) interior clay loam; weak very coarse prismatic structure; firm; 7.0 very fine tubular pores; 5 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented light brownish gray (10YR 6/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 10 percent fine carbonate masses; 2 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; strong effervescence; clear smooth boundary. nearly massisve, 2nd Till; patchy - phpvsfiid 886478; patchy - phpvsfiid 886478
    4Bk2—770 to 914 centimeters (303.1 to 359.8 inches); yellowish brown (10YR 5/6) interior clay loam; weak coarse prismatic structure; very firm; 5 percent distinct clay films; 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented grayish brown (10YR 5/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 10 percent fine carbonate masses; 3 percent by volume 2-?-75 millimeter mixed fragments and 4 percent by volume 2-?-75 millimeter chert fragments; strong effervescence; clear smooth boundary. some crystaline pebbles; patchy - phpvsfiid 886479; patchy - phpvsfiid 886479
    4BCk—914 to 1097 centimeters (359.8 to 431.9 inches); yellowish brown (10YR 5/6) interior clay loam; weak coarse prismatic structure; very firm; 3 percent faint clay films; 1 percent medium faint irregular noncoherent cemented light brownish gray (2.5Y 6/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 3 percent by volume 2-?-75 millimeter mixed fragments and 4 percent by volume 2-?-75 millimeter chert fragments; strong effervescence; abrupt smooth boundary. joints in places, plates are not pedogenic (geoplates), somecCrystalline stones; patchy - phpvsfiid 886480; patchy - phpvsfiid 886480
    4Cd—1097 to 1219 centimeters (431.9 to 479.9 inches); yellowish brown (10YR 5/6) interior clay loam; massive; very firm; 1 percent medium faint irregular noncoherent cemented light brownish gray (2.5Y 6/2), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented gray (10YR 6/1), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 3 percent by volume 2-?-75 millimeter mixed fragments and 5 percent by volume 2-?-75 millimeter chert fragments; strong effervescence; abrupt smooth boundary. joints
    5Bk1—1219 to 1341 centimeters (479.9 to 528.0 inches); yellow (10YR 7/6) interior silt loam; weak fine subangular blocky, and weak thin platy structure; very friable; fragments; violent effervescence; clear smooth boundary. loess-like, no apparent bedding planes
    5Bk2—1341 to 1470 centimeters (528.0 to 578.7 inches); brownish yellow (10YR 6/6) interior very fine sandy loam; weak thin platy structure; very friable; fragments; violent effervescence; clear smooth boundary. very powdery material, no surface features seen, bedding planes slightly variegated and some slights wavy
    5Bk3—1470 to 1603 centimeters (578.7 to 631.1 inches); brownish yellow (10YR 6/6) interior very fine sandy loam; weak very fine subangular blocky, and weak thin platy structure; very friable; fragments; violent effervescence; clear smooth boundary. very powdery material, no surface features
    5Bk4—1603 to 1706 centimeters (631.1 to 671.7 inches); yellowish brown (10YR 5/4) interior very fine sandy loam; weak thin platy structure; very friable; 5 percent prominent light gray (10YR 7/1), moist, skeletans; fragments; violent effervescence; abrupt smooth boundary. 1 mm thickness bedding planes in bottom of horizion, 1-2 inches above skeletans 1mm band of 10yr 5/4 slightly lighter strongly effervescant.; patchy - phpvsfiid 886485; patchy - phpvsfiid 886485
    6Bk5—1706 to 1768 centimeters (671.7 to 696.1 inches); yellowish brown (10YR 5/4) interior clay loam; weak fine subangular blocky structure; firm; 10 percent faint clay films; 1 percent medium faint irregular noncoherent cemented yellowish brown (10YR 5/6), moist, iron depletions with clear boundaries in matrix and 1 percent medium faint irregular noncoherent cemented black (10YR 2/1), moist, iron depletions with clear boundaries in matrix; 5 percent fine carbonate masses; 1 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments and 3 percent by volume 2-?-75 millimeter charcoal fragments; strong effervescence; abrupt smooth boundary. variegated bands in upper horizion 3mm, 3rd Till; patchy - phpvsfiid 886468; patchy - phpvsfiid 886468
    7Agb—1768 to 1813 centimeters (696.1 to 713.8 inches); very dark gray (10YR 3/1) interior silty clay loam; massive; firm; 2 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments and 3 percent by volume 2-?-75 millimeter schist, unspecified fragments; slight effervescence; gradual smooth boundary. fine blocky peds in places, 4th till, Moberly like formation (w/ members or outwash deposits) also could be an Atlanta formation deposit
    7Cg1—1813 to 2225 centimeters (713.8 to 876.0 inches); very dark gray (10YR 3/1) interior silty clay loam; weak very thick platy, and massive; firm; 2 percent fine carbonate masses; 3 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments and 3 percent by volume schist, unspecified fragments; slight effervescence; abrupt smooth boundary. More till like vs. wash, crystalline rock, some plates are wedges
    8Cg2—2225 to 2308 centimeters (876.0 to 908.7 inches); gray (10YR 5/1) interior loamy sand; single grain; loose; 1 percent by volume 2-?-75 millimeter chert fragments and 3 percent by volume 2-?-75 millimeter mixed fragments; strong effervescence; abrupt smooth boundary. an occassional sandy loam soil body (a 1 cm dic sbk like for also) many (30%) clean sand grains
    9Btgb—2308 to 2336 centimeters (908.7 to 919.7 inches); dark reddish gray (2.5YR 4/1) interior clay loam; moderate very fine subangular blocky, and moderate medium prismatic structure; firm; 3.0 very fine tubular pores; 15 percent faint clay films on vertical faces of peds; 1 percent by volume 75-?-250 millimeter chert fragments and 2 percent by volume rounded 2-?-75 millimeter mixed fragments and 3 percent by volume 2-?-75 millimeter charcoal fragments; slight effervescence; clear smooth boundary. patchy - phpvsfiid 886486; patchy - phpvsfiid 886486
    9Btkgb—2336 to 2385 centimeters (919.7 to 939.0 inches); dark reddish gray (2.5YR 4/1) interior sandy clay loam; weak fine subangular blocky, and weak medium prismatic structure; friable; 3.0 very fine tubular pores; 3 percent distinct clay films on vertical faces of peds and 35 percent distinct skeletans on vertical faces of peds; 1 percent by volume rounded 2-?-75 millimeter chert fragments; strong effervescence; clear smooth boundary. patchy - phpvsfiid 886487; patchy - phpvsfiid 886488; patchy - phpvsfiid 886487; patchy - phpvsfiid 886488
    9Bkgb—2385 to 2514 centimeters (939.0 to 989.8 inches); dark gray (2.5Y 4/1) interior clay loam; moderate wedge structure; firm; 3.0 very fine tubular pores; 30 percent distinct skeletans on vertical faces of peds; 5 percent fine carbonate masses; 1 percent by volume 2-?-75 millimeter unspecified fragments and 1 percent by volume 2-?-75 millimeter schist, unspecified fragments; strong effervescence; clear smooth boundary. clean sand grains on plates; discontinuous - phpvsfiid 886484; discontinuous - phpvsfiid 886484
    9Ckg1—2514 to 2598 centimeters (989.8 to 1022.8 inches); gray (2.5Y 5/1) interior fine sandy loam; platy structure; very friable; 0.9 very fine tubular pores; 1 percent by volume rounded 2-?-75 millimeter mixed fragments; strong effervescence; gradual smooth boundary. Alluvial wash or Glacial outwash
    9Ckg2—2598 to 2672 centimeters (1022.8 to 1052.0 inches); dark gray (2.5Y 4/1) interior sandy clay loam; massive; very friable; 0.9 very fine tubular pores; 5 percent prominent skeletans; 1 percent by volume 2-?-75 millimeter mixed fragments; strong effervescence; gradual smooth boundary. 86 feet 4 inches to 86 feet 9 inches Sicl layer vf <1% coarse frag, very fine wedgelike structure, picture taken, 87 feet 3 inches - 87 feet 9 inches sicl by wedgelike structure also.; discontinuous - phpvsfiid 886489; discontinuous - phpvsfiid 886489
    10Ckg3—2672 to 2712 centimeters (1052.0 to 1067.7 inches); dark gray (2.5Y 4/1) interior extremely gravelly sandy clay loam; 40 percent by volume subangular 2-?-75 millimeter limestone, unspecified fragments; strong effervescence; gradual smooth boundary. Some broken limestone was from the drilling process
    11Ckg4—2712 to 2835 centimeters (1067.7 to 1116.1 inches); dark gray (2.5Y 4/1) interior sandy clay loam; massive; firm; 2 percent by volume angular 2-?-75 millimeter limestone, unspecified fragments and 5 percent by volume 2-?-75 millimeter mixed fragments; strong effervescence.
    11Ckg5—2835 to 2911 centimeters (1116.1 to 1146.1 inches); dark gray (2.5Y 4/1) interior clay loam; 20 percent sand; massive; firm; 2 percent by volume rounded 2-?-75 millimeter schist, unspecified fragments and 3 percent by volume rounded 2-?-75 millimeter mixed fragments; slight effervescence. changed to roarty core drilling
    5Bk3—2911 to 3017 centimeters (1146.1 to 1187.8 inches); fragments. Ray: core when through some rock frags and sandier colapsed in felling sed or sluff from above and then it felt firmer