D12 YELL Megapit Soils Description
Print Date: Feb 4 2019 | Country: |
Description Date: Jul 10 2018 | State: Wyoming |
Describer: Daniel Wood, Philip Goodin | County: Park |
Site ID: S2018WY029001 | MLRA: 43B -- Central Rocky Mountains |
Site Note: | Soil Survey Area: WY665 -- Yellowstone National Park, Wyoming-Montana-Idaho 4-POW -- Powell, Wyoming |
Pedon ID: S2018WY029001 | Map Unit: |
Pedon Note: | Quad Name: Blacktail Deer Creek, Wyoming |
Lab Source ID: KSSL | Std Latitude: 44.9559710 |
Lab Pedon #: 18N1800 | Std Longitude: -110.5419840 |
User Transect ID: | |
Soil Name as Described/Sampled: Pachel | |
Classification: Fine-loamy, mixed, superactive, frigid Pachic Argiustolls | Latitude: 44 degrees 57 minutes 21.50 seconds north |
Soil Name as Correlated: | Longitude: 110 degrees 32 minutes 31.14 seconds west |
Classification: | Datum: NAD83 |
Pedon Type: confirmation description | UTM Zone: 12 |
Pedon Purpose: laboratory sampling site | UTM Easting: 536126 meters |
Taxon Kind: family | UTM Northing: 4978161 meters |
Associated Soils: | |
Physiographic Division: Rocky Mountain System | Primary Earth Cover: Grass/herbaceous cover |
Physiographic Province: Middle Rocky Mountains | Secondary Earth Cover: |
Physiographic Section: | Existing Vegetation: |
State Physiographic Area: | Parent Material: |
Local Physiographic Area: | Bedrock Kind: |
Geomorphic Setting: on footslope of mountainbase of mountains on footslope of mountainbase of hillslope | Bedrock Depth: |
Upslope Shape: concave | Bedrock Hardness: |
Cross Slope Shape: linear | Bedrock Fracture Interval: |
Particle Size Control Section: 4 to 29 cm. | Surface Fragments: |
Description origin: Spreadsheet | Description database: KSSL |
Diagnostic Features: | mollic epipedon 0 to 98 cm. argillic horizon 4 to 29 cm. argillic horizon 45 to 200 cm. secondary carbonates 67 to 200 cm. |
Cont. Site ID: S2018WY029001 | Pedon ID: S2018WY029001 |
Slope (%) | Elevation (meters) | Aspect (deg) | MAAT (C) | MSAT (C) | MWAT (C) | MAP (mm) | Frost-Free Days | Drainage Class | Slope Length (meters) | Upslope Length (meters) |
9.0 | 2,036.0 | 343 | 6.0 | 432 | 100 | well |
A--0 to 4 centimeters (0.0 to 1.6 inches); brown (7.5YR 4/2) broken face loam, black (7.5YR 2.5/1) broken face, moist; 20 percent clay; moderate medium granular structure; soft, friable, slightly sticky, slightly plastic; very fine roots throughout and fine roots throughout; 2 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments; noneffervescent, by HCl, 1 normal; neutral, pH 7.2, pH indicator solutions; clear smooth boundary. Lab sample # 18N05260
Bt1--4 to 29 centimeters (1.6 to 11.4 inches); brown (7.5YR 4/2) broken face loam, black (7.5YR 2.5/1) broken face, moist; 24 percent clay; moderate medium subangular blocky structure; soft, very friable, slightly sticky, slightly plastic; very fine roots throughout and fine roots throughout; very fine low-continuity dendritic tubular and fine low-continuity dendritic tubular pores; 15 percent distinct clay films on all faces of peds; 4 percent nonflat subangular indurated 2 to 20-millimeter mixed rock fragments and 4 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments; noneffervescent, by HCl, 1 normal; neutral, pH 6.8, pH indicator solutions; gradual wavy boundary. Lab sample # 18N05261
Bw--29 to 45 centimeters (11.4 to 17.7 inches); brown (7.5YR 4/2) broken face loam, black (7.5YR 2.5/1) broken face, moist; 24 percent clay; weak medium granular structure; soft, very friable, moderately sticky, moderately plastic; very fine roots throughout and fine roots throughout; very fine low-continuity dendritic tubular pores; 3 percent nonflat subangular indurated 2 to 20-millimeter mixed rock fragments and 4 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments; noneffervescent, by HCl, 1 normal; neutral, pH 6.8, pH indicator solutions; gradual smooth boundary. Lab sample # 18N05262
Bt2--45 to 67 centimeters (17.7 to 26.4 inches); brown (7.5YR 4/2) broken face gravelly loam, black (7.5YR 2.5/1) broken face, moist; 26 percent clay; moderate medium subangular blocky structure; soft, friable, moderately sticky, moderately plastic; very fine roots throughout and fine roots throughout; very fine moderate-continuity dendritic tubular and fine low-continuity dendritic tubular pores; 25 percent distinct clay films on all faces of peds; 5 percent nonflat subangular indurated 2 to 20-millimeter mixed rock fragments and 10 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments; noneffervescent, by HCl, 1 normal; neutral, pH 7.0, pH indicator solutions; gradual wavy boundary. Lab sample # 18N05263
Btk1--67 to 98 centimeters (26.4 to 38.6 inches); brown (7.5YR 5/2) broken face gravelly clay loam, dark brown (7.5YR 3/2) broken face, moist; 28 percent clay; moderate medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; very fine roots throughout and medium roots throughout and fine roots throughout; very fine moderate-continuity dendritic tubular pores; 10 percent faint carbonate coats on rock fragments and 35 percent distinct clay films on all faces of peds; 2 percent medium distinct cylindrical indurated cemented carbonate nodules with clear boundaries in matrix; 5 percent nonflat subrounded indurated 250 to 600-millimeter mixed rock fragments and 5 percent nonflat subangular indurated 5 to 20-millimeter mixed rock fragments and 8 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments and 8 percent nonflat subrounded indurated 76 to 250-millimeter mixed rock fragments and 8 percent nonflat subangular indurated 20 to 76-millimeter mixed rock fragments; noneffervescent, by HCl, 1 normal; neutral, pH 7.2, pH indicator solutions; gradual wavy boundary. Lab sample # 18N05264
Btk2--98 to 126 centimeters (38.6 to 49.6 inches); light brown (7.5YR 6/3) broken face gravelly clay loam, brown (7.5YR 5/3) broken face, moist; 28 percent clay; moderate medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; very fine roots throughout and fine roots throughout; very fine low-continuity tubular pores; 15 percent distinct carbonate coats on rock fragments and 40 percent distinct clay films on all faces of peds; 3 percent medium distinct irregular weakly cemented carbonate masses with diffuse boundaries in matrix; 2 percent nonflat subrounded indurated 250 to 600-millimeter mixed rock fragments and 2 percent nonflat subrounded indurated 76 to 250-millimeter mixed rock fragments and 3 percent nonflat subangular indurated 20 to 76-millimeter mixed rock fragments and 4 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments and 5 percent nonflat subangular indurated 5 to 20-millimeter mixed rock fragments; very slight effervescence, by HCl, 1 normal; slightly alkaline, pH 7.6, pH indicator solutions; gradual wavy boundary. Lab sample # 18N05265
Btk3--126 to 161 centimeters (49.6 to 63.4 inches); light gray (10YR 7/2) broken face clay loam, brown (10YR 5/3) broken face, moist; 30 percent clay; moderate medium platy parts to moderate medium subangular blocky structure; moderately hard, friable, moderately sticky, moderately plastic; fine low-continuity tubular pores; 35 percent distinct clay films on all faces of peds and 40 percent distinct carbonate coats on bottom of rock fragments; 35 percent medium prominent threadlike weakly cemented carbonate masses with clear boundaries in matrix; 3 percent nonflat subangular indurated 20 to 76-millimeter mixed rock fragments and 3 percent nonflat subangular indurated 5 to 20-millimeter mixed rock fragments and 5 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments; strong effervescence, by HCl, 1 normal; moderately alkaline, pH 8.2, pH indicator solutions; diffuse wavy boundary. Lab sample # 18N05266
Btk4--161 to 200 centimeters (63.4 to 78.7 inches); pale brown (10YR 6/3) broken face clay loam, brown (10YR 4/3) broken face, moist; 30 percent clay; strong medium platy structure; hard, firm, moderately sticky, moderately plastic; fine low-continuity tubular pores; 40 percent distinct carbonate coats on bottom of rock fragments and 65 percent prominent clay films on all faces of peds; 15 percent medium prominent threadlike weakly cemented carbonate masses with clear boundaries in matrix; 3 percent nonflat subangular indurated 20 to 76-millimeter mixed rock fragments and 3 percent nonflat subangular indurated 5 to 20-millimeter mixed rock fragments and 5 percent nonflat subangular indurated 2 to 5-millimeter mixed rock fragments; strong effervescence, by HCl, 1 normal; moderately alkaline, pH 8.4, pH indicator solutions. Lab sample # 18N05267