IDENTIFIERS

  • Current Taxon Name (Soil Name): Gem
  • OSD
  • Series Extent
  • User Site ID: S1979ID087001
  • User Pedon ID: 79ID087001
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - KSSL
  • Lab Pedon # - 79P0433
  • NCSS Pedon Lab Data NASIS Record ID - 47166
  • Print Date: 4/21/2025

    • 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: 44.2591540
  • Std. Longitude: -116.7015850
  • Datum: WGS84
  • Township: 11N
  • Range: 3W
  • Section: 28
  • PLSS Details: 680 meters W and 714 meters N of SE corner
  • Location Description: NE Weiser 24 km.
  • Map Unit: 73—Gem-Reywat complex, 2 to 30 percent slopes
  • State: Idaho
  • County: ID087—Washington
  • MLRA: 10—Central Rocky and Blue Mountain Foothills
  • 7.5 Minute USGS Quad: 44116-C6—Nutmeg Flat, Idaho

    • PEDON

  • Describers Name: G.H.L., L.M.R., D.L.M., S.H., K.W.H., M.A.F.
  • Current Taxonomic Class: Fine-loamy, mixed, superactive, mesic Typic Argixerolls
  • Current Taxon Kind: taxadjunct
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: Converted from SSL-CMS data
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Gem
  • PSC - 18 to 65 cm.
  • Classificaton Date - 7/11/2007
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Gem
  • Taxonomic Class - Fine, montmorillonitic, mesic Calcic(Ultic) Argixe
  • Taxon Kind - series
  • Classificaton Date - 9/1/1979
  • Moisture Class - xeric
  • Dynamic Soil Properties:
  • Erosion Class - 1
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: residuum weathered from basalt
  • Landscape: hills
  • Landform: hillslope
  • Geomorphic Component Hills: side slope
  • Hill Slope Profile: backslope
  • Slope Position: upper third
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: none ponding
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 9/1/1979 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • 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

    bedrock, lithic

    —

    —

    65 - 89

    89 -

    —

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

    argillic horizon

    18—65

    —-
    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

    10

    —

    —

    1089

    —

    180

    585

    —

    125

    10.1

    —

    —

    10.6

    —

    —

    —

    —

    —

    —

    —
    A—0 to 8 centimeters (0.0 to 3.1 inches); brown (10YR 4/3) interior, very dark brown (10YR 2/2) interior, moist; loam; 22 percent clay; weak medium platy structure; slightly hard, friable, slightly sticky, slightly plastic; 2.5 very fine roots and 0.5 fine and medium roots; 2.5 very fine interstitial and 0.5 fine and medium tubular pores; 5 percent by volume nonflat indurated 2-39-75 millimeter mixed fragments observed by visual inspection method; slightly acid, pH 6.4, hellige-truog; clear smooth boundary. Lab sample # 79P02342. common very fine roots; few fine and medium roots
    BA—8 to 18 centimeters (3.1 to 7.1 inches); dark brown (10YR 3/3) interior, very dark brown (10YR 2/2) interior, moist; loam; 23 percent clay; weak medium and coarse platy structure; hard, friable, moderately sticky, moderately plastic; 2.5 very fine roots and 0.5 medium roots; 0.5 fine interstitial and 2.5 fine tubular pores; clay films between sand grains; 5 percent by volume nonflat indurated 2-39-75 millimeter mixed fragments observed by visual inspection method; slightly acid, pH 6.4, hellige-truog; abrupt wavy boundary. Lab sample # 79P02343. common very fine roots; few medium roots
    Bt1—18 to 28 centimeters (7.1 to 11.0 inches); brown (10YR 4/3) interior, very dark brown (10YR 2/2) interior, moist; sandy clay loam; 30 percent clay; moderate medium subangular blocky structure; very hard, firm, very sticky, very plastic; 2.5 very fine roots and 0.5 fine roots; 2.5 very fine and fine interstitial pores; pressure faces on nodules and pressure faces in root channels and/or pores; 5 percent by volume nonflat indurated 2-39-75 millimeter mixed fragments observed by visual inspection method; neutral, pH 6.6, hellige-truog; clear wavy boundary. Lab sample # 79P02344. common very fine roots; few fine roots
    Bt2—28 to 43 centimeters (11.0 to 16.9 inches); dark brown (7.5YR 3/4) interior, dark brown (7.5YR 3/4) interior, moist; clay loam; 30 percent clay; moderate medium prismatic, and strong fine and medium angular blocky structure; very hard, firm, very sticky, very plastic; 2.5 very fine roots and 0.5 fine roots; 2.5 very fine and fine interstitial and 2.5 very fine tubular pores; 55 percent slickensides (pedogenic) on faces of peds and 55 percent slickensides (pedogenic) in root channels and/or pores; 5 percent by volume nonflat indurated 2-39-75 millimeter mixed fragments observed by visual inspection method; neutral, pH 6.6, hellige-truog; clear wavy boundary. Lab sample # 79P02345. many intersecting slickensides surface features on faces of peds; many intersecting slickensides surface features in root channels and/or pores; common very fine roots; few fine roots
    Bt3—43 to 58 centimeters (16.9 to 22.8 inches); brown (10YR 4/3) interior, dark yellowish brown (10YR 3/4) interior, moist; clay loam; 30 percent clay; strong fine subangular blocky structure; very hard, firm, very sticky, very plastic; 5.5 very fine roots and 0.5 fine roots; 5.5 very fine tubular and 5.5 fine interstitial pores; 55 percent slickensides (pedogenic) on faces of peds and 55 percent slickensides (pedogenic) in root channels and/or pores; 10 percent by volume nonflat indurated 2-39-75 millimeter mixed fragments observed by visual inspection method; neutral, pH 6.6, hellige-truog; abrupt wavy boundary. Not sampled.; many intersecting slickensides surface features on faces of peds; many intersecting slickensides surface features in root channels and/or pores; many very fine roots; few fine roots
    BCt—58 to 65 centimeters (22.8 to 25.6 inches); dark brown (7.5YR 3/4) interior and yellowish brown (10YR 5/6) interior, brown (7.5YR 4/4) interior and dark yellowish brown (10YR 4/6) interior, moist; clay loam; 32 percent clay; moderate fine platy structure; hard, friable, slightly sticky, slightly plastic; 0.5 very fine roots; 0.5 very fine interstitial pores; 55 percent slickensides (pedogenic) on faces of peds and 55 percent slickensides (pedogenic) in root channels and/or pores; 10 percent by volume nonflat indurated 2-39-75 millimeter mixed fragments observed by visual inspection method; neutral, pH 6.7, hellige-truog; clear wavy boundary. Lab sample # 79P02346. many intersecting slickensides surface features on faces of peds; many intersecting slickensides surface features in root channels and/or pores; few very fine roots
    Cr—65 to 89 centimeters (25.6 to 35.0 inches); coarse sandy loam; 8 percent clay; very hard; fragments. Lab sample # 79P02347. Decomposing basalt. Rock structure.; many intersecting slickensides surface features
    R—89 centimeters (35.0 inches); bedrock; fragments. Basalt bedrock. Not sampled.