Nebraska Soils Field Trip - Virginia Tech

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4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook *** Primary Characterization Data *** Pedon ID: S12IA155001 Sampled As : Monona ( Pottawattamie County, Iowa ) Fine-silty, mixed, superactive, mesic Typic Hapludoll Print Date: May 2 2012 9:15AM USDA-NRCS-NSSC-National Soil Survey Laboratory ; Pedon No. 12N0013 Clay Mineralogy -1- -2- -3- -4- -5- -6- -7- -8- -9- -10- -11- -12- -13- -14- -15- -16- -17- -18- X-Ray Thermal Elemental EGME Inter Depth Fract 7A1b1 7A4a SiO2 Al2O3 Fe2O3 MgO CaO K2O Na2O Retn preta tion Layer (cm) Horz ion ( - - - - -- - peak size - - - - - - - - ) (- - - - - - - - % - - - - - - - -) (- - -- - - - - - - - - - - - - - % - - - - - - - - - - - - - - - -) mg g -1 12N00054 30-52 Bw1 tcly MT 3 MI 3 KK 2 VR 2 KK 32 SMEC 12N00057 99-117 BC tcly MT 5 MI 2 KK 2 KK 33 SMEC FRACTION INTERPRETATION: tcly - Total Clay, MINERAL INTERPRETATION: KK - Kaolinite MI - Mica MT - Montmorillonite VR - Vermiculite RELATIVE PEAK SIZE: 5 Very Large 4 Large 3 Medium 2 Small 1 Very Small Sand - Silt Mineralogy (2.0-0.002 mm) -1- -2- -3- -4- -5- -6- -7- -8- -9- -10- -11- -12- -13- -14- -15- -16- -17- -18- X-Ray Thermal Optical EGME Inter Layer Depth (cm) Horz Tot Grain Count Retn preta Re Fract 7B1a2 tion ion ( - - - - - - - peak size -- - - - - - - ) (- - - - - - - % - - - - - - - - - -) (- - - - - - - - - - - - - - - - - - % - - - - - - -- - - - - - - -) mg g -1 12N00054 30-52 Bw1 csi 69 QZ 65 FK 18 BT 5 MS 4 CD 2 AR 1 SMIX FE 1 OP 1 PR 1 BY tr FP tr GC tr GN tr GS tr HN tr PO tr ZR tr 12N00057 99-117 BC csi 73 QZ 66 FK 15 BT 4 CD 4 MS 4 FE 2 SMIX FRACTION INTERPRETATION: csi - Coarse Silt, 0.02-0.05 mm MINERAL INTERPRETATION: FP 1 GC 1 GN 1 HN 1 PR 1 AR tr BY tr CA tr GS tr OP tr PO tr SS tr ZR tr AR - Weatherable Aggregates BT - Biotite BY - Beryl CA - Calcite CD - Chert (Chalcedony FE - Iron Oxides (Goethite FK - Potassium Feldspar FP - Plagioclase Feldspar GC - Glass Coated Grain GN - Garnet GS - Glass HN - Hornblende MS - Muscovite OP - Opaques PO - Plant Opal PR - Pyroxene QZ - Quartz SS - Sponge Spicule ZR - Zircon INTERPRETATION (BY HORIZON): SMIX - Mixed Sand 94
4th IUSS Soil Classification Conference <strong>Field</strong> Tour Guidebook LOCATION MONONA IA+KS MO NE Established Series Rev. FFR-RAL-TWN 07/2004 MONONA SERIES The Monona series consists of very deep, well drained soils formed in loess. These soils are on interfluves and side slopes on dissected till plains and risers and treads on loess covered stream terraces. Slopes range from 0 to 40 percent. Mean annual air temperature is about 10 degrees C (51 degrees F). Mean annual precipitation is about 71 centimeters (29 inches). TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Typic Hapludolls TYPICAL PEDON: Monona silt loam, on a slope of 1 percent, in a cultivated field, at an elevation of 418 meters (1,370 feet) above sea level. (Colors are for moist soil unless otherwise stated.) Ap--0 to 18 centimeters (0 to 7 inches); very dark brown (10YR 2/2) silt loam, very dark grayish brown (10YR 3/2) dry; weak fine subangular blocky structure parting to weak fine granular; friable; few very fine pores; slightly acid; clear smooth boundary. A--18 to 38 centimeters (7 to 15 inches); very dark brown (10YR 2/2) and dark brown (10YR 3/3) silt loam, brown (10YR 5/3) dry; weak very fine subangular blocky structure parting to weak very fine granular; friable; few very fine pores; slightly acid; clear smooth boundary. [Combined thickness of the A horizon is 25 to 61 centimeters (10 to 24 inches).] Bw1--38 to 53 centimeters (15 to 21 inches); brown (10YR 4/3) silt loam; weak fine subangular blocky structure; friable; common very fine pores; neutral; gradual smooth boundary. Bw2--53 to 76 centimeters (21 to 30 inches); brown (10YR 4/3) silt loam; weak fine subangular blocky structure; friable; many very fine pores; few very fine dark concretions (oxides); neutral; gradual smooth boundary. [Combined thickness of the Bw horizon is 30 to 114 centimeters (12 to 45 inches).] C--76 to 152 centimeters (30 to 60 inches); brown (10YR 4/3) silt loam; massive; very friable; few very fine pores; many very fine dark concretions (oxides); common very fine distinct brown (7.5YR 4/4) relict redoximorphic concentrations; few fine distinct grayish brown (2.5Y 5/2) relict redoximorphic depletions; neutral grading with depth to slightly alkaline. TYPE LOCATION: Major Land Resource Area (MLRA) 107; Harrison County, Iowa; about 7 miles east of Woodbine; about 67 meters (220 feet) north and 318 meters (1,044 feet) east of southwest corner of section 13, T. 80 N., R. 41 W.; USGS Portsmouth quadrangle; lat. 41 degrees 43 minutes 59 seconds N. and long. 95 degrees 34 minutes 22 seconds W., NAD 83. 95
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Taxonomic Classifications of surfac
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Soil Taxonomy Fine-loamy, mixed, ac
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