Nebraska Soils Field Trip - Virginia Tech

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4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook Monona silty clay loam Loess Depth: 15 to 5 meters Parent material: leached loess Landscape position: interfluves and side slopes on dissected till plains and risers and treads on loess covered stream terraces. Percent slope: 0-40% Classification: Fine-silty, mixed, superactive, mesic Typic Hapludolls Drainage class: Well drained Associated soils: Judson silty clay loam (foot slope) Sand content: less than 5 percent Silt content: coarse silt to fine ratio is approximately 1.5 to 1.75 to 1 in the B horizon Clay content: 27 to 30 percent in the upper B horizon Monona silty clay loam Lab data: PSDA & Rock Fragments -1- -2- -3- -4- -5- -6- -7- -8- -9- -10- -11- -12- -13- -14- -15- -16- -17- ( Rock Fragments (- - Total - - - -) (- Clay - -) (- - Silt -- - -) (- - - -- - - - Sand - - - - - - -) (mm) ) Clay Silt Sand Fine CO3 Fine Coarse VF F M C VC (- - - - Weight - - - - - -) >2 mm < .002 .05 < < .002 .02 .05 .10 .25 .5 1 2 5 20 .1- wt % Depth .002 -.05 -2 .0002 .002 -.02 -.05 -.10 -.25 -.50 -1 -2 -5 -20 -75 75 whole Layer (cm) Horz Prep (- - - - - - - - - - - - - - % of
4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook Marshall silty clay loam Loess Depth: 5 meters on the summits Parent material: leached loess Landscape position: interfluves and side slopes on uplands and on risers and treads on stream terraces. Percent slope: 0-25% Classification: Fine-silty, mixed, superactive, mesic Typic Hapludolls Drainage class: Well drained Associated soils: Exira silty clay loam (sideslopes) Judson silty clay loam (foot slope) Sand content: less than 10 percent Silt content: coarse silt to fine ratio is approximately 1.2 to 1.4 to 1 in the B horizon. Clay content: 27 to 35 percent in the B horizon Marshall silty clay loam lab data: PSDA & Rock Fragments -1- -2- -3- -4- -5- -6- -7- -8- -9- -10- -11- -12- -13- -14- -15- -16- -17- ( Rock Fragments (- - -- Total - -- -) (- -Clay - -) (- - Silt - - -) (- - - - - - Sand - - - - - - -) (mm) ) Clay Silt Sand Fine CO3 Fine Coarse VF F M C VC (- - - - - Weight - - - - -) >2 mm < .002 .05 < < .002 .02 .05 .10 .25 .5 1 2 5 20 .1- wt % Depth .002 -.05 -2 .0002 .002 -.02 -.05 -.10 -.25 -.50 -1 -2 -5 -20 -75 75 whole Layer (cm) Horz Prep (- - - - - - - - - - - - - - % of
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4 th International Union of Soil Sc
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4th IUSS Soil Classification Confer
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Soil Taxonomy Fine-loamy, mixed, ac
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