IDENTIFIERS

  • Current Taxon Name (Soil Name): Mattex
  • OSD
  • Series Extent
  • User Site ID: S1994TX067001
  • User Pedon ID: 94TX067001
  • Vegetation Plot ID: S1994TX067001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 95P0137
  • NCSS Pedon Lab Data NASIS Record ID - 67155
  • 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: 33.1053314
  • Std. Longitude: -94.1833344
  • Datum: WGS84
  • Location Description: From the intersection of US Highway 59 and TX 77 in Atlanta, TX; 200 feet north of intersection on US Highway 59; 0.7 miles east on ranch road; 700 feet north of ranch road in pasture. Atlanta Quad
  • State: Texas
  • County: TX067—Cass
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: TX616—Marion and Cass Counties, Texas
  • 7.5 Minute USGS Quad: 33094-A2—Atlanta South, Texas

    • PEDON

  • Describers Name: KR, KG, MG, DS, LO, MB
  • Current Taxonomic Class: Fine-loamy, mixed, semiactive, acid, thermic Fluvaquentic Epiaquepts
  • Current Taxon Kind: series
  • Pedon Type: taxadjunct to the series
  • Pedon Purpose: soil survey inventory
  • Pedon Record Orgin: Converted from PDP 3.x
  • Pedon #: 1
  • Correlated Information:
  • Soil Name - Mattex
  • PSC - 25 to 100 cm.
  • Classificaton Date - 2/9/2015
  • Sampled As Information:
  • Soil Name - Mattex
  • Taxonomic Class - Fine-loamy, siliceous Aeric Fluvaquents
  • PSC - 25 to 100 cm.
  • Classificaton Date - 10/11/1994
  • Moisture Class - udic
  • Dynamic Soil Properties:
  • Erosion Class - 0
  • Pedoderm Loose Cover Indicator - no
  • Hydric: yes
  • Certification Status: certified
  • QC Status: level 1


    • SITE

  • Landscape: coastal plain
  • Landform: flood plain
  • Runoff: very low
  • Drainage Class: somewhat poorly
  • Flooding: frequent flooding for long periods begining in nov
  • Wet Soil Moisture Duration: 30
  • Surface Fragments: 0.00 percent
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/11/1994 (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
    • Vegetation Plot Plants
    Plant Symbol Scientific Name National Vernacular Name Plant Type Group Canopy Cover % Vegetation Stata Level

    JUNCU

    SOLID

    Juncus

    Solidago

    rush

    goldenrod

    —

    —

    —

    —

    —

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

    ochric epipedon

    cambic horizon

    episaturation

    redox concentrations

    0—13

    13—200

    41—126

    41—200

    —-

    —-

    —-

    —-
    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

    1

    —

    —

    69

    —

    1168

    —

    —

    17.8

    22.2

    —

    —

    —

    —

    —

    —

    —

    —

    —
    Ap—0 to 13 centimeters (0.0 to 5.1 inches); 70 percent brown (10YR 4/3) exterior silty clay loam; 3 percent strong brown (7.5YR 5/6) medium distinct irregular and 3 percent brown (7.5YR 4/4) fine distinct irregular mottles; weak fine and medium subangular blocky structure; hard, friable, noncoherent; 21.0 very fine to coarse roots between peds; 3.0 fine to coarse tubular pores; 1 percent fine and medium irregular iron-manganese concretions throughout; fragments; extremely acid, pH 4.1, pH meter; clear smooth boundary. Lab sample # 95P00938
    Bw1—13 to 30 centimeters (5.1 to 11.8 inches); 70 percent dark yellowish brown (10YR 4/4) exterior clay loam; 3 percent grayish brown (10YR 5/2) fine and medium distinct irregular and 3 percent strong brown (7.5YR 5/6) fine and medium distinct irregular mottles; moderate fine and medium subangular blocky structure; slightly hard, friable, noncoherent; 21.0 fine to coarse roots between peds; 3.0 fine to coarse tubular pores; 10 percent faint grayish brown (10YR 5/2) coats; 3 percent fine and medium irregular iron-manganese concretions throughout; fragments; very strongly acid, pH 4.6, pH meter; clear wavy boundary. Lab sample # 95P00939. discontinuous - phpvsfiid 1167824; discontinuous - phpvsfiid 1167824
    Bw2—30 to 41 centimeters (11.8 to 16.1 inches); 60 percent dark yellowish brown (10YR 4/4) exterior clay loam; 3 percent strong brown (7.5YR 5/6) fine and medium distinct irregular and 21 percent grayish brown (10YR 5/2) fine and medium distinct irregular mottles; moderate fine and medium subangular blocky structure; slightly hard, friable, noncoherent; 21.0 fine and medium roots between peds; 3.0 fine to coarse tubular pores; 10 percent faint grayish brown (10YR 5/2) coats; 3 percent fine and medium irregular iron-manganese concretions throughout; fragments; strongly acid, pH 5.4, pH meter; clear wavy boundary. Lab sample # 95P00940. discontinuous - phpvsfiid 1167825; discontinuous - phpvsfiid 1167825
    Bg1—41 to 71 centimeters (16.1 to 28.0 inches); 80 percent light brownish gray (10YR 6/2) exterior loam; 3 percent dark yellowish brown (10YR 4/4) medium distinct irregular and 3 percent strong brown (7.5YR 5/6) medium distinct irregular and 3 percent dark yellowish brown (10YR 4/6) medium distinct irregular mottles; weak fine and medium subangular blocky structure; slightly hard, friable, noncoherent; 21.0 fine and medium roots between peds; 3.0 fine to coarse tubular pores; 3 percent fine and medium irregular iron-manganese concretions throughout; fragments; very strongly acid, pH 4.8, pH meter; gradual wavy boundary. Lab sample # 95P00941
    Bg2—71 to 104 centimeters (28.0 to 40.9 inches); 50 percent light brownish gray (10YR 6/2) exterior loam; 3 percent strong brown (7.5YR 5/6) fine distinct irregular and 21 percent brownish yellow (10YR 6/6) medium distinct irregular mottles; weak fine and medium subangular blocky structure; slightly hard, friable, noncoherent; 21.0 fine and medium roots between peds; 21.0 fine to coarse tubular pores; 10 percent faint iron stains on faces of peds; 3 percent fine and medium irregular iron-manganese concretions throughout; fragments; extremely acid, pH 4.4, pH meter; gradual wavy boundary. Lab sample # 95P00942. discontinuous - phpvsfiid 1167826; discontinuous - phpvsfiid 1167826
    Bg3—104 to 126 centimeters (40.9 to 49.6 inches); 60 percent light brownish gray (10YR 6/2) exterior loam; 3 percent strong brown (7.5YR 5/6) fine distinct irregular and 21 percent brownish yellow (10YR 6/6) medium distinct irregular mottles; moderate fine and medium subangular blocky structure; hard, friable, noncoherent; 3.0 fine and medium roots between peds; 21.0 fine to coarse tubular pores; 10 percent faint iron stains on faces of peds; 3 percent medium and coarse irregular iron-manganese concretions throughout; fragments; extremely acid, pH 4.4, pH meter; gradual wavy boundary. Lab sample # 95P00943. discontinuous - phpvsfiid 1167827; discontinuous - phpvsfiid 1167827
    Bg4—126 to 155 centimeters (49.6 to 61.0 inches); 60 percent grayish brown (10YR 5/2) exterior clay loam; 3 percent red (2.5YR 4/8) medium prominent irregular and 21 percent strong brown (7.5YR 5/6) medium distinct irregular mottles; moderate fine and medium subangular blocky structure; hard, firm, noncoherent; 3.0 fine and medium roots between peds; 21.0 fine and medium tubular pores; 1 percent medium and coarse irregular weakly coherent cemented brown (7.5YR 4/4) iron-manganese concretions throughout; fragments; extremely acid, pH 4.1, pH meter; gradual wavy boundary. Lab sample # 95P00944
    2Bg1—155 to 181 centimeters (61.0 to 71.3 inches); 70 percent grayish brown (10YR 5/2) exterior loam; 3 percent strong brown (7.5YR 5/6) medium distinct irregular and 3 percent red (2.5YR 4/8) medium prominent irregular mottles; moderate fine and medium subangular blocky structure; hard, firm, noncoherent; 3 percent medium and coarse irregular weakly coherent cemented brown (7.5YR 4/4) iron-manganese concretions throughout; fragments; extremely acid, pH 4.2, pH meter; gradual wavy boundary. Lab sample # 95P00945
    2Bg2—181 to 200 centimeters (71.3 to 78.7 inches); 50 percent grayish brown (10YR 5/2) exterior loam; 21 percent strong brown (7.5YR 5/6) medium distinct irregular and 21 percent red (2.5YR 4/8) medium prominent irregular mottles; moderate fine and medium subangular blocky structure; hard, firm, noncoherent; 3 percent medium and coarse irregular weakly coherent cemented brown (7.5YR 4/4) iron-manganese concretions throughout; fragments; extremely acid, pH 4.0, pH meter. Lab sample # 95P00946