IDENTIFIERS

  • Current Taxon Name (Soil Name): Caribou
  • OSD
  • Series Extent
  • User Site ID: S1956ME003001
  • User Pedon ID: S1956ME003001
  • Vegetation Plot ID: S1956ME003001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 40A0399
  • NCSS Pedon Lab Data NASIS Record ID - 32927
  • Print Date: 2/16/2025

    • 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: 46.6568832
  • Std. Longitude: -68.0118179
  • Datum: WGS84
  • Location Description: Aroostook County, Maine. Pit bordering previous farm dump toward back of Aroostook Experiment Station Farm, approximately 2 miles south of Presque Isle.
  • State: Maine
  • County: ME003—Aroostook
  • MLRA: 146—Aroostook Area
  • Non-MLRA Soil Survey Area: ME607—Aroostook County, Maine, Northeastern Part

    • PEDON

  • Describers Name: J.S. Hardesty, W. Farley, E.J. Pedersen.
  • Current Taxonomic Class: Fine-loamy, mixed, frigid Typic Haplorthods
  • Current Taxon Kind: taxadjunct
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Caribou
  • PSC - 10 to 40 cm.
  • Classificaton Date - 7/11/2007
  • Sampled As Information:
  • Soil Name - Caribou
  • Classificaton Date - 7/12/1956
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Drainage Class: well
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 7/12/1956 (actual site observation date)
  • Surface Cover Properties:
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    ABIES

    HAMAM

    PICEA

    Abies

    Hamamelis

    Picea

    fir

    witchhazel

    spruce

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    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

    8

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    A1—0 to 8 centimeters (0.0 to 3.1 inches); very dark grayish brown (10YR 3/2) gravelly silt loam; moderate medium granular structure; very friable; 21.0 roots; 15 percent by volume subrounded 75-162-250 millimeter shale, unspecified fragments and 15 percent by volume subrounded quartzite fragments; very strongly acid, pH 4.8, unspecified; abrupt smooth boundary. Lab sample # 40A03001. Many earthworms are present in forested area; night crawler mounds occur on surface at 8-12 inch intervals.
    A2—8 to 13 centimeters (3.1 to 5.1 inches); light brownish gray (10YR 6/2) silt loam; weak thin platy structure; very friable; 0.5 roots; 0.5 fine pores; fragments; abrupt smooth boundary. Lab sample # 40A03002. Silt loam, appearing light gray in place, occurs at horizontal intervals of 4 to 8 feet as 6 to 8 inches wide and 2-3 inch thick spots.
    B21—8 to 20 centimeters (3.1 to 7.9 inches); reddish brown (5YR 4/4) silt loam; weak very fine granular structure; very friable; 21.0 roots; 7 percent by volume angular 75-162-250 millimeter shale, calcareous fragments; abrupt smooth boundary. Lab sample # 40A03003. Upper 1/2 to 1 inch darker color.
    B22—20 to 48 centimeters (7.9 to 18.9 inches); dark yellowish brown (10YR 4/4) gravelly silt loam; weak fine granular structure; very friable; 21.0 roots; 15 percent by volume subrounded 75-162-250 millimeter unspecified fragments; abrupt wavy boundary. Lab sample # 40A03004
    A'2—48 to 66 centimeters (18.9 to 26.0 inches); yellowish brown (10YR 5/4) gravelly silt loam; weak fine angular blocky parts to platy parts to weak fine granular structure; friable, nonsticky, nonplastic; brittle; 0.5 roots; 21.0 fine pores; clay films on lower surfaces of peds or rocks; subrounded 75-162-250 millimeter unspecified fragments and 25 percent by volume angular 75-162-250 millimeter shale, calcareous fragments; abrupt smooth boundary. Lab sample # 40A03005. Many fine vertical cylindrical pores opening on the horizontal platy or blocky ped surface.
    B'21—66 to 109 centimeters (26.0 to 42.9 inches); yellowish brown (10YR 5/4) very gravelly silty clay loam; moderate coarse subangular blocky parts to medium subangular blocky structure; friable; 21.0 fine pores; clay films on faces of peds and in pores; shale, calcareous fragments; slight effervescence; abrupt smooth boundary. Lab sample # 40A03006. Ped faces have a network of clay glazed pore channels and interiors also have many fine clay glazed irregular shaped pores; many 5YR 4/6 soft leached 1-3 inch calcareous shale fragments (ghosts), possible 50 percent of the 60 to 80 percent by volume coarse angular skeleton consists of soft or very soft low bulk density ghosts and most of the remaining shales though still firm or hard are leached.
    B'22—109 to 135 centimeters (42.9 to 53.1 inches); yellowish brown (10YR 5/4) very gravelly silty clay, clay loam; weak coarse subangular blocky parts to moderate subangular blocky structure; friable, slightly sticky, moderately plastic; 0.5 roots; clay films on faces of peds and in pores; fragments; slight effervescence; abrupt smooth boundary. Lab sample # 40A03007. Whole peds cannot be picked out because of the numerous coarse fragments ped interiors have a network of many fine clay glazed pores, definitely browner than horizon below, coarse fragments are larger than in the horizon above or below and resemble a stone line, about 20 percent of coarse fragments are very friable ghosts. This is a horizon that seems to have maximum clay whereas the horizon above has maximum ghosts.
    C1—135 to 160 centimeters (53.1 to 63.0 inches); yellowish brown (10YR 5/4) very gravelly clay loam; very friable, moderately sticky, moderately plastic; clay films on rock fragments; angular shale, calcareous fragments and quartzite fragments and 70 percent by volume subangular 75-162-250 millimeter shale, noncalcareous fragments; strong effervescence; diffuse smooth boundary. Lab sample # 40A03008. Many interstitial cavities near coarse fragments and these are clay glazed, essentially free of small pores; perhaps 5 percent of fragments are friable ghosts; diffuse smooth boundary.
    C2—160 to 193 centimeters (63.0 to 76.0 inches); yellowish brown (10YR 5/4) very gravelly clay loam; very friable, moderately sticky, moderately plastic; clay films on rock fragments; angular shale, calcareous fragments and quartzite fragments and 70 percent by volume subangular 75-162-250 millimeter shale, noncalcareous fragments; strong effervescence. Lab sample # 40A03009
    D1—193 to 229 centimeters (76.0 to 90.2 inches); yellowish brown (10YR 5/4) clay loam; firm; clay films on rock fragments; fragments; strong effervescence. Lab sample # 40A03010. Essentially broken up bedrock. Firm in place and removed with difficulty because of close packing of angular fragments. Many fragments are clay glazed.