IDENTIFIERS

  • Current Taxon Name (Soil Name): Terril
  • OSD
  • Series Extent
  • Local Phase: Acid Varient
  • User Site ID: S1966IA089933
  • User Pedon ID: S1965IA089933
  • User Site Association ID: NC-WAV_Terril_Pedons
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - ISU2015
  • Lab Pedon # - X45-492-3
  • NCSS Pedon Lab Data NASIS Record ID - 75273
  • Print Date: 3/2/2025

    • 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: 43.2981400
  • Std. Longitude: -92.1028000
  • Datum: WGS84
  • Township: 98N
  • Range: 11W
  • Section: 23
  • PLSS Details: 290 feet north and 580 feet west of the northeast corner
  • Location Description: "580ft W and 290 ft N of corner post in the NE corner", assumed to mean field post given description based on section corner would move it into different section. Postion estimated.
  • Country: US—United States
  • State: Iowa
  • County: IA089—Howard
  • MLRA: 104—Eastern Iowa and Minnesota Till Prairies
  • Regional Office: 11—Indianapolis, IN
  • MLRA Soil Survey Area: NC-WAV—Waverly, Iowa
  • Non-MLRA Soil Survey Area: IA089—Howard County, Iowa

    • PEDON

  • Describers Name: Voy,Brown and Buckner
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Cumulic Hapludolls
  • Current Taxon Kind: variant
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Terril
  • PSC - 25 to 100 cm.
  • Classificaton Date - 12/5/1966
  • Classifier - Voy,Brown and Buckner
  • Soil Taxonomic Edition - twelfth edition
  • Sampled As Information:
  • Soil Name - Terril
  • Taxonomic Class - Fine-loamy, mixed, superactive, mesic Cumulic Hapludolls
  • Taxon Kind - series
  • Classificaton Date - 12/5/1966
  • Classifier - Voy,Brown and Buckner
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Pedon Vegetation and Crop Cover Information:
  • Range Veg. Canopy Type Dominant - perennial grass
  • Range Veg. Canopy Type Secondary - perennial forbs or herbaceous
  • Hydric: no
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Parent Material: loamy till over silty and clayey residuum over residuum weathered from cherty limestone over Shattered limestone
  • Landform: slope flat
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 12/5/1966 (actual site observation date)
  • Data Collector: Unknown
  • 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 Horizon Lab Results - 1
    Horizon Top Depth Bottom Depth Sample ID Data Collector Total Clay CaCO3 Clay Total Silt Fine Silt Co. Silt Total Sand Total Sand Method VC Sand Co. Sand Med. Sand Fine Sand VF Sand VF Sand Method Texture Class - Field Lab Rubbed Fiber Unrubbed Fiber pH H2O
    cm cm % % % % % % % % % % % % %

    A1

    A2

    AB

    0

    41

    71

    41

    71

    89

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    —

    Iowa State University

    Iowa State University

    Iowa State University

    29.7

    29

    27

    —

    —

    —

    54.7

    46.6

    49.5

    31

    26.4

    27.8

    23.7

    20.2

    21.7

    15.6

    24.4

    23.5

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    sicl

    cl

    cl

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    Pedon Horizon Lab Results - 2
    Horizon Top Depth Bottom Depth Sample ID pH CaCl2 pH NaF pH Ox Delta pH LL PL PI Atter. Samp. Cond. COLE Pot. Acidity Ca + Mg - Meh 2 K Ca + Mg - Sat. Paste KCl Extract. Acidity Base Sat. - Meh 2 CEC-7 CEC-8.2
    cm cm % % % cm/cm meq/100g cmol(+)/kg cmol(+)/kg mmol(+)/l cmol(+)/kg % cmol(+)/kg cmol(+)/kg

    A1

    A2

    AB

    0

    41

    71

    41

    71

    89

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    Pedon Horizon Lab Results - 3
    Horizon Top Depth Bottom Depth Sample ID ECEC Phosphate P NO3-N EC EC Method EC 1:5 by volume CaCO3 Equiv. Equiv. Gypsum Na SAR Gypsum Req. Humic Color Fulvic Color Humic + Fulvic Color Al PI Pyro. Hue PyrO. Value Pyro. Chroma
    cm cm cmol(+)/kg mg/kg mg/kg dS/m dS/m % % mmol(+)/l % L-pcu/g L-pcu/g L-pcu/g %

    A1

    A2

    AB

    0

    41

    71

    41

    71

    89

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    Pedon Diagnostic Features
    Feature Kind Feature Depth L-H Feature Thickness L-RV-H
    cm

    mollic epipedon

    argillic horizon

    redox concentrations

    lithic contact

    0—71

    89—119

    145—170

    170—

    —71—

    —30—

    —25—

    —-
    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

    1

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    180

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    A1—0 to 41 centimeters (0.0 to 16.1 inches); black (10YR 2/1) silty clay loam; moderate fine granular, and moderate very fine granular structure; friable; fragments; neutral, pH 6.6; gradual smooth boundary.
    A2—41 to 71 centimeters (16.1 to 28.0 inches); black (10YR 2/1) clay loam; weak medium subangular blocky parts to moderate fine granular structure; friable; fragments; strongly acid, pH 5.4; gradual smooth boundary.
    AB—71 to 89 centimeters (28.0 to 35.0 inches); very dark grayish brown (10YR 3/2) interior clay loam; weak medium subangular blocky structure; friable; common medium and common fine pores; very dark brown (10YR 2/2), moist, organic stains on all faces of peds; fragments; strongly acid, pH 5.4; clear wavy boundary. "discontinous very dark brown(10YR 2/2/) ped coats" imputted as organic stain.; discontinuous - phpvsfiid 1948975; discontinuous - phpvsfiid 1948975
    Bt—89 to 117 centimeters (35.0 to 46.1 inches); brown (10YR 4/3) interior loam; weak medium prismatic parts to weak medium subangular blocky structure; friable; common medium and common fine pores; dark brown (10YR 3/3), moist, organic stains on all faces of peds; fragments; strongly acid, pH 5.4; clear smooth boundary. "B2" on sheet, Bt assumed.; "nearly continoous dark brown(10YR 3/3)prism and ped coats" imputted as organic stains.; continuous - phpvsfiid 1948976; continuous - phpvsfiid 1948976
    BC—117 to 137 centimeters (46.1 to 53.9 inches); brown (10YR 4/3) interior fine gravelly sandy clay loam; weak medium subangular blocky, and weak coarse subangular blocky structure; very friable; common medium and common fine pores; dark brown (10YR 3/3), moist, organic stains between sand grains and dark brown (10YR 3/3), moist, organic stains on all faces of peds; 20 percent by volume 2-3-5 millimeter mixed fragments; moderately acid, pH 5.8; abrupt wavy boundary. "nearly continous drk brown(10YR 3/3)ped coats and on many of sand and gravel particles" imputted as organic stain on all ped faces and between sand grains.; continuous - phpvsfiid 1948977; continuous - phpvsfiid 1948979; continuous - phpvsfiid 1948977; continuous - phpvsfiid 1948979
    2BC—137 to 145 centimeters (53.9 to 57.1 inches); light olive brown (2.5Y 5/4) silty clay loam; moderate fine subangular blocky structure; very firm; common medium and common fine and pores; fragments; neutral, pH 7.0; abrupt wavy boundary. "silty clay loam(residium)"
    3C—145 to 170 centimeters (57.1 to 66.9 inches); pale yellow (2.5Y 7/4) silt loam; structureless massive; very firm; 1 percent prominent yellowish brown (10YR 5/6), moist, masses of oxidized iron throughout; 5 percent by volume limestone, cherty fragments; slightly alkaline, pH 7.4; abrupt wavy boundary. "Calcarous below 63inches"(160cm); "Contains some limestone and cherty fragments in lower 3 inches"(8cm), fragment percent is estimated.; "silt loam(mealy limestone)"; "mottles" intrepreted as redox features
    4R—170 centimeters (66.9 inches); bedrock; fragments. "Shattered limestone bedrock"