IDENTIFIERS

  • Current Taxon Name (Soil Name): Ravenrock
  • OSD
  • Series Extent
  • User Site ID: S1984MD021001
  • User Pedon ID: S1984MD021001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 84P0719
  • NCSS Pedon Lab Data NASIS Record ID - 54962
  • Print Date: 11/24/2024

    • 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: 39.6248000
  • Std. Longitude: -77.4672444
  • Datum: WGS84
  • Location Description: Cunningham Falls State Park; 200 feet S of water treatment plant.
  • Map Unit: Re—ROUGH STONY LAND
  • State: Maryland
  • County: MD021—Frederick
  • MLRA: 130A—Northern Blue Ridge

    • PEDON

  • Current Taxonomic Class: Loamy-skeletal, mixed, active, mesic Ultic Hapludalfs
  • Current Taxon Kind: series
  • Pedon Type: classifies to current taxon name, full description
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Ravenrock
  • PSC - 18 to 68 cm.
  • Classificaton Date - 4/4/2017
  • Classifier - Ben Marshall
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - udic
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Lew
  • Taxonomic Class - Loamy-skeletal, mixed, mesic Ultic Hapludalfs
  • Taxon Kind - series
  • PSC - 18 to 68 cm.
  • Classificaton Date - 8/1/1984
  • Classifier - Soil Survey Staff
  • Soil Taxonomic Edition - first edition
  • Moisture Class - udic
  • Moisture SUBClass - typic
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

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

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 8/1/1984 (actual site observation date)
  • 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
  • Site Erosion Accelerated: water erosion
    • Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    weakly coherent

    162 - 200

    - 38 -

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

    ochric epipedon

    argillic horizon

    lithologic discontinuity

    redox concentrations

    lithologic discontinuity

    paralithic contact

    paralithic materials

    0—18

    18—142

    86—162

    142—162

    162—200

    162—200

    162—200

    —18—

    —124—

    —76—

    —20—

    —38—

    —38—

    —38—
    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

    18

    —

    —

    353

    —

    180

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    A—0 to 10 centimeters (0.0 to 3.9 inches); brown (7.5YR 4/4) interior silt loam; moderate very fine subangular blocky structure; friable; 5.5 medium roots; 10 percent by volume 2-39-75 millimeter mixed fragments; clear wavy boundary. Lab sample # 84P3967; observed in trench. many medium roots
    BE—10 to 18 centimeters (3.9 to 7.1 inches); strong brown (7.5YR 5/6) interior silt loam; moderate very fine subangular blocky structure; friable; 2.5 fine and medium roots; 2.5 very fine tubular pores; 20 percent by volume 2-39-75 millimeter mixed fragments; gradual wavy boundary. Lab sample # 84P3968; observed in trench. common fine and medium roots
    Bt1—18 to 41 centimeters (7.1 to 16.1 inches); yellowish red (5YR 4/6) interior silt loam; moderate very fine subangular blocky structure; friable; 5.5 medium and coarse roots; 2.5 very fine tubular pores; 55 percent , moist, clay films on faces of peds; 25 percent by volume 2-39-75 millimeter mixed fragments; clear wavy boundary. Lab sample # 84P3969; observed in trench. many clay films surface features on faces of peds; many medium and coarse roots; patchy - phpvsfiid 1053106; patchy - phpvsfiid 1053106
    Bt2—41 to 86 centimeters (16.1 to 33.9 inches); yellowish red (5YR 4/6) interior clay loam; moderate medium subangular blocky structure; friable; 2.5 fine roots; 2.5 very fine tubular pores; 55 percent distinct , moist, clay films on faces of peds; 30 percent by volume 2-39-75 millimeter mixed fragments; abrupt wavy boundary. Lab sample # 84P3970; observed in trench. many clay films surface features on faces of peds; common fine roots; patchy - phpvsfiid 1053107; patchy - phpvsfiid 1053107
    2Bt3—86 to 108 centimeters (33.9 to 42.5 inches); red (2.5YR 4/6) interior clay loam; weak fine platy structure; firm; 0.5 fine roots; 2.5 very fine tubular pores; 55 percent distinct , moist, clay films on faces of peds; 25 percent by volume 2-39-75 millimeter mixed fragments and 30 percent by volume 75-162-250 millimeter mixed fragments; abrupt wavy boundary. Lab sample # 84P3971; observed in trench. many clay films surface features on faces of peds; few fine roots; patchy - phpvsfiid 1053108; patchy - phpvsfiid 1053108
    2Bt4—108 to 142 centimeters (42.5 to 55.9 inches); red (2.5YR 4/8) interior silty clay; moderate medium angular blocky structure; friable; 5.5 medium roots; 0.5 very fine vesicular pores; 55 percent distinct , moist, clay films on faces of peds; 15 percent by volume 2-39-75 millimeter mixed fragments; abrupt irregular boundary. Lab sample # 84P3972; observed in trench. many clay films surface features on faces of peds; many medium roots; patchy - phpvsfiid 1053109; patchy - phpvsfiid 1053109
    2C—142 to 162 centimeters (55.9 to 63.8 inches); red (2.5YR 4/6) interior clay loam; massive; firm; 5.5 fine roots; 0.5 very fine vesicular pores; 37 percent distinct yellowish red (5YR 5/6), moist, iron stains; 25 percent by volume 2-39-75 millimeter mixed fragments; abrupt irregular boundary. Lab sample # 84P3973; observed in trench. common iron stains surface features; many fine roots
    3Cr—162 to 200 centimeters (63.8 to 78.7 inches); olive brown (2.5Y 4/4) interior bedrock; massive; very firm; fragments. Lab sample # 84P3974; observed in trench. Vertical cleavage fracture; cracks with interfinger of Bt/C.; Loam texture by lab analysis