IDENTIFIERS

  • Current Taxon Name (Soil Name): Oxyaquic Argixerolls
  • OSD
  • Series Extent
  • User Site ID: 10CA630BJM074
  • User Pedon ID: S2011CA009004
  • Vegetation Plot ID: 10CA630BJM074
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 12N7644
  • NCSS Pedon Lab Data NASIS Record ID - 55302
  • 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: 38.0358333
  • Std. Longitude: -120.7111111
  • Datum: WGS84
  • Map Unit: 7083—Aquic Haploxeralfs-Loafercreek-Dunstone complex, 1 to 12 percent slopes
  • State: California
  • County: CA009—Calaveras
  • MLRA: 18—Sierra Nevada Foothills
  • Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties
  • 7.5 Minute USGS Quad: 38120-A6—Salt Spring Valley, California

    • PEDON

  • Describers Name: Ben Marshall
  • Current Taxonomic Class: Fine-loamy, mixed, active, thermic Oxyaquic Argixerolls
  • Current Taxon Kind: family
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: laboratory sampling site
  • Correlated Information:
  • Soil Name - Oxyaquic Argixerolls
  • PSC - 20 to 70 cm.
  • Classificaton Date - 12/27/2017
  • Classifier - Andrew Brown
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - oxyaquic
  • Sampled As Information:
  • Soil Name - Aquic Argixerolls
  • Classificaton Date - 11/10/2010
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: alluvium derived from igneous, metamorphic and sedimentary rock
  • Landscape: Sierra Nevada foothills
  • Landform: alluvial flat
  • Geomorphic Component Terraces: tread
  • Geomorphic Component Flats: talf
  • Slope Complexity: simple
  • Slope Shape Across: linear
  • Slope Shape Down: linear
  • Drainage Class: well
  • Flooding: none flooding
  • Ponding: occasional ponding for very brief periods
  • Surface Fragments: 2.00 percent nonflat subrounded indurated 2- to 75-millimeter mixed, 2.00 percent nonflat subrounded indurated 2- to 75-millimeter mixed,
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 11/10/2010 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - other grass/herbaceous cover
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
  • Current Weather - sunny
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    AVFA

    TRIFO

    Avena fatua

    Trifolium

    wild oat

    clover

    —

    —

    —

    —

    —

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

    mollic epipedon

    argillic horizon

    0—45

    20—203

    —-

    —-
    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

    2

    —

    —

    335.8

    —

    210

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 20 centimeters (0.0 to 7.9 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; silt loam; 24 percent sand; 54 percent silt; 22 percent clay; weak medium subangular blocky structure; soft, friable, slightly sticky, slightly plastic; many (8.0) very fine roots throughout and many (8.0) fine roots throughout; common (3.0) medium interstitial pores; 5 percent by volume nonflat subrounded indurated 2-?-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; strongly acid, pH 5.5, pH meter; clear smooth boundary.; slightly moist when described; observed in pit, small
    Bt1—20 to 45 centimeters (7.9 to 17.7 inches); brown (10YR 4/3), dark brown (10YR 3/3), moist; silt loam; 23 percent sand; 52 percent silt; 25 percent clay; moderate medium angular blocky structure; soft, friable, moderately sticky, moderately plastic; common (3.0) medium tubular pores; 10 percent distinct clay films on all faces of peds; 5 percent distinct masses of reduced iron in matrix; 5 percent by volume nonflat subrounded indurated 2-?-75 millimeter mixed fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.3, pH meter; clear smooth boundary.; slightly moist when described; observed in pit, small
    2Bt2—45 to 80 centimeters (17.7 to 31.5 inches); dark yellowish brown (10YR 4/4), dark yellowish brown (10YR 3/4), moist; gravelly loam; 42 percent sand; 32 percent silt; 26 percent clay; moderate medium subangular blocky structure; slightly hard, friable, very sticky, very plastic; common (3.0) medium tubular pores; 20 percent prominent clay films on all faces of peds; 2 percent medium distinct manganese masses in matrix and 5 percent medium distinct masses of reduced iron in matrix and 5 percent medium distinct masses of oxidized iron in matrix; 30 percent by volume nonflat subrounded indurated 2-?-50 millimeter mixed fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.4, pH meter; clear smooth boundary.; moist when described; observed in pit, small
    3Bt3—80 to 118 centimeters (31.5 to 46.5 inches); dark brown (7.5YR 3/3), very dark brown (7.5YR 2.5/3), moist; extremely gravelly sandy clay loam; 69 percent sand; 10 percent silt; 21 percent clay; moderate medium subangular blocky structure; slightly hard, friable, very sticky, very plastic; common (3.0) medium tubular pores; 20 percent prominent clay films on all faces of peds; 2 percent manganese masses in matrix and 5 percent masses of oxidized iron in matrix; 65 percent by volume nonflat subrounded indurated 2-?-25 millimeter mixed fragments; noneffervescent, by hcl, 1n; slightly acid, pH 6.4, pH meter; abrupt smooth boundary.; moist when described; observed in pit, small
    4Bt4—118 to 150 centimeters (46.5 to 59.1 inches); strong brown (7.5YR 5/6), strong brown (7.5YR 4/6), moist; gravelly loam; 39 percent sand; 41 percent silt; 21 percent clay; moderate medium subangular blocky structure; moderately hard, firm, moderately sticky, moderately plastic; 10 percent distinct clay films on all faces of peds; 3 percent manganese masses in matrix and 10 percent masses of oxidized iron in matrix; 20 percent by volume nonflat subrounded indurated 2-?-75 millimeter mixed fragments; slight effervescence, by hcl, 1n; neutral, pH 6.9, pH meter; abrupt smooth boundary.; moist when described; observed in pit, small