IDENTIFIERS

  • Current Taxon Name (Soil Name): Bonanza
  • OSD
  • Series Extent
  • User Site ID: 10CA630CKS003
  • User Pedon ID: 10CKS003
  • Vegetation Plot ID: 10CA630CKS003
  • Lab Information:
  • Certified Lab Pedon Description - yes
  • Lab Source ID - SSL
  • Lab Pedon # - 10N0897
  • NCSS Pedon Lab Data NASIS Record ID - 28318
  • Print Date: 4/29/2024

    • 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: 37.9580083
  • Std. Longitude: -120.5411833
  • Datum: WGS84
  • Township: 01 N
  • Range: 13 E
  • Section: 10
  • PLSS Details: about 920 feet south and 640 feet east of the northwest corner of
  • Location Description: about 9 miles east southeast of the city of Sonora, California
  • Map Unit: 7074—Loafercreek-Bonanza complex, 3 to 15 percent slopes
  • State: California
  • County: CA009—Calaveras
  • MLRA: 18—Sierra Nevada Foothills
  • Regional Office: SW—Southwest
  • Non-MLRA Soil Survey Area: CA630—Central Sierra Foothills Area, California, Parts of Calaveras and Tuolumne Counties
  • 7.5 Minute USGS Quad: 37120-H5—New Melones Dam, California

    • PEDON

  • Describers Name: Savastio, Chris
  • Current Taxonomic Class: Loamy, mixed, superactive, thermic, shallow Ultic Haploxeralfs
  • Current Taxon Kind: series
  • Pedon Type: representative pedon for component
  • Pedon Purpose: laboratory sampling site
  • Pedon Record Orgin: NASIS
  • Correlated Information:
  • Soil Name - Bonanza
  • PSC - 17 to 41 cm.
  • Classificaton Date - 7/19/2018
  • Classifier - Cathy Scott
  • Soil Taxonomic Edition - twelfth edition
  • Moisture Class - xeric
  • Moisture Subclass - typic
  • Sampled As Information:
  • Soil Name - Dunstone
  • Classificaton Date - 3/18/2010
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Parent Material: colluvium over residuum weathered from greenstone
  • Landscape: Sierra Nevada foothills
  • Landform: hillslope
  • Geomorphic Component Hills: nose slope
  • Hill Slope Profile: shoulder
  • Slope Complexity: simple
  • Slope Shape Across: convex
  • Slope Shape Down: convex
  • Runoff: medium
  • Drainage Class: well
  • Flooding: none flooding
  • Bedrock: moderately coherent greenstone at 41cm with 10 to <45
  • Geology: Greenstone member of the Gopher Ridge Metavolcanics formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

  • Ecological Sites. (Click Ecological Site ID For Link to EDIT.)
    Ecological Site ID Ecological Site Name Correlation Data Classifier
    F018XI201CA Moderately Deep Thermic Foothills Jul 6 2017 Julie Baker

    • SITE OBSERVATION

  • Observation Date: 3/18/2010 (actual site observation date)
  • Plant Association Name: Blue Oak Woodland
  • 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
  • Current Weather - sunny
  • Current Air Temp - 22
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    2GA

    ALLIU

    ERODI

    PLAGI

    QUDO

    QUWI2

    —

    Allium

    Erodium

    Plagiobothrys

    Quercus douglasii

    Quercus wislizeni

    Grass, annual

    onion

    stork's bill

    popcornflower

    blue oak

    interior live oak

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    Pedon Restrictions
    Kind Hardness Restriction Depth L-H Restriction Thickness L-RV-H
    cm

    bedrock, paralithic

    bedrock, lithic

    moderately coherent

    —

    41 - 55

    55 -

    —

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

    ochric epipedon

    argillic horizon

    paralithic materials

    lithic contact

    0—17

    17—41

    41—55

    55—200

    —17—

    —26—

    —14—

    —-
    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

    —

    —

    390

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    150

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    Oi—0 to 1 centimeters (0.0 to 0.4 inches); slightly decomposed plant material; fragments; clear smooth boundary.; observed in pit, small
    A—1 to 5 centimeters (0.4 to 2.0 inches); brown (7.5YR 5/3) broken face, brown (7.5YR 4/2) broken face, moist; loam; 46 percent sand; 37 percent silt; 16 percent clay; moderate fine granular structure; slightly hard, friable, slightly sticky, slightly plastic; 8.0 very fine roots throughout and 0.8 fine roots throughout; 0.8 very fine irregular and 0.8 medium tubular pores; 2 percent by volume weakly coherent cemented 2-3-5 millimeter greenstone fragments; slightly acid, pH 6.5, hellige-truog; clear wavy boundary. Lab sample # 10N04396; observed in pit, small
    Bt1—5 to 17 centimeters (2.0 to 6.7 inches); brown (7.5YR 5/4) broken face, dark brown (7.5YR 3/3) broken face, moist; loam; 47 percent sand; 37 percent silt; 17 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 3.0 very fine roots throughout; 0.8 very fine irregular and 0.8 medium tubular pores; 30 percent faint clay films on all faces of peds; 2 percent by volume weakly coherent cemented 2-10-20 millimeter greenstone fragments and 4 percent by volume strongly coherent cemented 2-10-20 millimeter greenstone fragments; slightly acid, pH 6.3, hellige-truog; gradual wavy boundary. Lab sample # 10N04397; observed in pit, small
    Bt2—17 to 31 centimeters (6.7 to 12.2 inches); brown (7.5YR 5/4) broken face, brown (7.5YR 4/4) broken face, moist; loam; 44 percent sand; 36 percent silt; 20 percent clay; moderate medium subangular blocky structure; slightly hard, friable, slightly sticky, slightly plastic; 0.8 very fine roots throughout and 0.8 fine roots throughout; 3.0 very fine irregular and 0.8 medium tubular pores; 50 percent faint clay films on all faces of peds; 1 percent by volume strongly coherent cemented 2-10-20 millimeter greenstone fragments and 2 percent by volume weakly coherent cemented 2-3-5 millimeter greenstone fragments; slightly acid, pH 6.5, hellige-truog; gradual wavy boundary. Lab sample # 10N04398; observed in pit, small
    Bt3—31 to 41 centimeters (12.2 to 16.1 inches); brown (7.5YR 5/4) broken face, brown (7.5YR 4/3) broken face, moist; loam; 40 percent sand; 35 percent silt; 25 percent clay; moderate medium subangular blocky structure; soft, friable, slightly sticky, slightly plastic; 0.8 very fine roots throughout and 0.8 fine roots throughout; 0.8 very fine irregular and 0.8 medium tubular pores; 75 percent faint clay films on all faces of peds; 1 percent by volume strongly coherent cemented 2-3-5 millimeter greenstone fragments and 7 percent by volume weakly coherent cemented 2-3-5 millimeter greenstone fragments; slightly acid, pH 6.4, hellige-truog; clear irregular boundary. Lab sample # 10N04399; observed in pit, small
    Cr—41 to 55 centimeters (16.1 to 21.7 inches); bedrock; fragments; clear irregular boundary.; observed in pit, small
    R—55 to 200 centimeters (21.7 to 78.7 inches); bedrock; fragments.