IDENTIFIERS

  • Current Taxon Name (Soil Name): Grayrock
  • OSD
  • Series Extent
  • User Site ID: S2000TX365001
  • User Pedon ID: S2000TX365001
  • Lab Information:
  • Certified Lab Pedon Description - no
  • Lab Source ID - SSL
  • Lab Pedon # - 01P0133
  • NCSS Pedon Lab Data NASIS Record ID - 13015
  • Print Date: 11/13/2025

    • 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: 32.3169899
  • Std. Longitude: -94.4739304
  • Datum: WGS84
  • Location Description: Martin Lake mine; Beckville C-II (Grid 1641B)
  • State: Texas
  • County: TX365—Panola
  • MLRA: 133B—Western Coastal Plain
  • Non-MLRA Soil Survey Area: TX365—Panola County, Texas

    • PEDON

  • Describers Name: Neitsch, Lane, Golden
  • Current Taxonomic Class: Fine-silty, mixed, nonacid Typic Udorthents
  • Current Taxon Kind: series
  • Pedon Type: not classified to current taxon name
  • Pedon Purpose: full pedon description
  • Pedon Record Orgin: NASIS
  • Pedon #: 1
  • Sampled As Information:
  • Soil Name - Grayrock
  • Taxonomic Class - Fine-silty, mixed, nonacid Typic Udorthents
  • PSC - 25 to 100 cm.
  • Classificaton Date - 10/18/2000
  • Dynamic Soil Properties:
  • Pedoderm Loose Cover Indicator - no
  • Hydric: no


    • SITE

  • Landscape: coastal plain
  • Anthropogenic Feature: surface mine
  • Geology: East Texas Timberlands formation.
  • Surface Fragments:
  • Benchmark Soil?: no

    • VEGETATION

    SITE OBSERVATION

  • Observation Date: 10/18/2000 (actual site observation date)
  • Surface Cover Properties:
  • Site Obs. Cover Kind 1 - grass/herbaceous cover
  • Site Obs. Cover Kind 2 - hayland
  • Pedoderm Loose Cover Indicator - no
  • Drained? - no
  • Bedded Soil? - no
  • Forest Plantation? - no
    • 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

    —

    —

    101

    —

    320

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    —

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    Ap—0 to 18 centimeters (0.0 to 7.1 inches); dark grayish brown (10YR 4/2), grayish brown (10YR 5/2), dry; fine sandy loam; 18 percent clay; 8 percent yellowish brown (10YR 5/4) mottles; weak medium subangular blocky parts to weak fine granular structure; slightly hard, friable; 3.0 very fine roots throughout and 6.0 medium roots throughout and 1.0 coarse roots throughout; 1.0 medium irregular and 1.0 fine irregular pores; fragments; clear smooth boundary. Lab sample # 01P00921; observed in pit, small. Eight percent sandy clay loam oxidized material scattered randomly in horizon. Few fine lignite particles.
    C1—18 to 48 centimeters (7.1 to 18.9 inches); dark grayish brown (2.5Y 4/2), grayish brown (2.5Y 5/2), dry; fine sandy loam; 17 percent clay; 5 percent yellowish brown (10YR 5/4) mottles; weak very coarse prismatic parts to weak medium subangular blocky structure; slightly hard, friable; 3.0 medium roots throughout and 3.0 fine roots throughout; 1.0 medium irregular and 1.0 fine irregular pores; 1 percent sand coats on surfaces along root channels; 1 percent fine mica flakes, unspecified; 3 percent by volume 20-?-50 millimeter claystone fragments; clear smooth boundary. Lab sample # 01P00922; observed in pit, small
    C2—48 to 83 centimeters (18.9 to 32.7 inches); 40 percent dark grayish brown (2.5Y 4/2) and 35 percent yellowish brown (10YR 5/4), light yellowish brown (2.5Y 6/3) and light yellowish brown (10YR 6/4), dry; loam; 21 percent clay; 2 percent gray (10YR 6/1) mottles; weak very coarse prismatic parts to weak medium subangular blocky structure; slightly hard, friable; 3.0 very fine roots throughout and 3.0 medium roots throughout; 1.0 medium irregular and 1.0 fine irregular pores; 1 percent sand coats on surfaces along root channels; 1 percent fine mica flakes, unspecified; 10 percent by volume claystone fragments; clear smooth boundary. Lab sample # 01P00923; observed in pit, small. Less than one percent lignite particles.
    C3—83 to 127 centimeters (32.7 to 50.0 inches); dark grayish brown (2.5Y 4/2), light yellowish brown (2.5Y 6/3), dry; loam; 18 percent clay; 1 percent very dark gray (10YR 3/1) and 1 percent strong brown (7.5YR 5/6) and 5 percent yellowish brown (10YR 5/6) mottles; weak very coarse prismatic parts to weak medium subangular blocky structure; slightly hard, friable; 1.0 very fine roots throughout and 0.5 medium roots throughout and 1.0 fine roots throughout; 0.5 medium irregular and 0.5 fine irregular pores; 1 percent fine mica flakes, unspecified; 1 percent by volume 20-?-80 millimeter claystone fragments; clear smooth boundary. Lab sample # 01P00924; observed in pit, small
    C4—127 to 155 centimeters (50.0 to 61.0 inches); dark grayish brown (10YR 4/2) loam; 20 percent clay; weak coarse subangular blocky structure; slightly hard, friable; 1.0 very fine roots throughout and 0.5 medium roots throughout and 1.0 fine roots throughout; 0.5 medium irregular and 0.5 fine irregular pores; 1 percent fine mica flakes, unspecified; 10 percent by volume siltstone, unspecified fragments and 10 percent by volume claystone fragments; clear smooth boundary. Lab sample # 01P00925; observed in pit, small. Fifteen percent oxidized sandy clay loam BC materials in colors of 2.5YR 4/6, 10YR 6/1, 7.5YR 5/6. Less than one percent lignite particles.
    C5—155 to 200 centimeters (61.0 to 78.7 inches); red (10R 4/8) and brownish yellow (10YR 6/8) and black (10YR 2/1) and brown (10YR 5/3) loam; 22 percent clay; weak coarse subangular blocky structure; slightly hard, friable; 1.0 very fine roots throughout and 1.0 fine roots throughout; 0.5 medium irregular and 0.5 fine irregular pores; 5 percent by volume siltstone, unspecified fragments; clear smooth boundary. Lab sample # 01P00926; observed in pit, small. Few fine lignite fragments 0.5-1 inch in size.