Nebraska Soils Field Trip - Virginia Tech

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4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook RANGE IN CHARACTERISTICS: Thickness of the mollic epipedon--25 to 61 centimeters (10 to 24 inches) Depth to relict redoximorphic features--56 to 165 centimeters (22 to 65 inches) Depth to carbonates--61 to more than 203 centimeters (24 to more than 80 inches) Content of clay in the particle-size control section (weighted average)--20 to 27 percent Content of sand in the particle-size control section (weighted average)--less than 5 percent Clay content decreases regularly with depth A or Ap horizon: Hue--10YR Value--2 or 3 Chroma--1 to 3 Texture--silt loam or silty clay loam Clay content--20 to 35 percent Sand content--less than 5 percent Reaction--moderately acid to neutral AB or BA horizon (if it occurs): Hue--10YR Value--2 or 3 Chroma--2 or 3 Texture--silt loam or silty clay loam Clay content--20 to 30 percent Sand content--less than 5 percent Reaction--slightly acid or neutral Thickness--0 to 6 inches Bw horizon: Hue--10YR Value--4 or 5 Chroma--3 or 4 Texture--silt loam or silty clay loam Clay content--20 to 27 percent Sand content--less than 5 percent Reaction--slightly acid or neutral BC horizon (if it occurs): Hue--10YR Value--4 or 5 Chroma--3 or 4 Texture--silt loam Clay content--18 to 26 percent Sand content--less than 5 percent Reaction--neutral or slightly alkaline Thickness--0 to 12 inches 96
4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook Redoximorphic features present in this horizon are believed to be relict and not considered to be related to present day saturation C horizon: Hue--10YR Value--4 or 5 Chroma--3 to 6 Texture--silt loam Clay content--18 to 24 percent Sand content--less than 10 percent Calcium carbonate equivalent--0 to 25 percent Reaction--neutral to moderately alkaline Redoximorphic features present in this horizon are believed to be relict and not considered to be related to present day saturation Some pedons have sandy and gravelly sediments within a depth of 60 inches COMPETING SERIES: These are the Annieville, Biggsville, Dinsmore, Exira, Galva, Keg, Marshall, Northboro, Ponca, Port Byron, Raddle, Salix, and Truman series. Annieville--have a sand content of more than 10 percent within depths of 102 to 152 centimeters (40 to 60 inches) Biggsville--have zones within a depth of 152 centimeters (60 inches) that are frequently saturated for periods longer than one month in most years Dinsmore--have a sand content of 30 to 70 percent within depths of 102 to 152 centimeters (40 to 60 inches) Exira--have a clay content of 30 to 35 percent in the particle-size control section and have many or common redoximorphic features within depths of 76 centimeters (30 inches) Galva--have a clay content of 30 to 35 percent in the particle-size control section and have carbonates within depths of 81 to 183 centimeters (32 to 72 inches) Keg--have a sand content of 10 to 35 percent in the lower half of the series control section Marshall--have a clay content of 27 to 35 percent in the particle-size control section Northboro--have cambic horizons with matrix hues of 5YR or 7.5YR Ponca--have carbonates within a depth of 61 centimeters (24 inches) Port Byron--are more acid throughout the series control section Raddle--are more acid throughout the series control section and have a sand content of more than 5 percent in the lower half of the series control section Salix--have a sand content of 15 to 60 percent in the lower third of the series control section and have carbonates within depths of 51 to 91 centimeters (20 to 36 inches) Truman--have a sand content of more than 10 percent in the series control section GEOGRAPHIC SETTING: Parent material--loess Landform--interfluves and side slopes on dissected till plains and risers and treads on loess covered stream terraces Slopes--0 to 40 percent Elevation--335 to 457 meters (1,100 to 1,500 feet) above sea level Mean annual air temperature--8 to 12 degrees C (47 to 54 degrees F) 97
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4 th International Union of Soil Sc
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Taxonomic Classifications of surfac
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Page 121 and 122: Pedon ID: S11NE153001 *** Primary C
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41° 9' 27'' 41° 9' 12'' 4th IUSS
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Soil Taxonomy Fine-loamy, mixed, ac
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Nebraska Soils Field Trip - Virginia Tech

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