D12 YELL Megapit Soils Description

PEDON 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

 

 


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