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The genesis and characteristics of the fragipan of the Beltsville soils

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dc.contributor.authorGlenn, Rollin C.en
dc.contributor.departmentAgronomyen
dc.date.accessioned2015-06-23T19:07:59Zen
dc.date.available2015-06-23T19:07:59Zen
dc.date.issued1957en
dc.description.abstractThree profiles of the Beltsville soil from Fairfax County, Virginia were studied in relation to the mechanical composition, the mineralogical composition, and some of the chemical and physical properties. Soil samples were selected to represent a profile developed over Coastal Plain deposits, schist, and granite, respectively. A high kaolinite content, a low quartz and illite content, and the presence of gibbsite in the horizons below the fragipan indicate that this material has undergone more intensive or a different type of weathering than the material in the solum. Two horizons high in clay were found in each of the profiles studied: one above the fragipan, which is the present illuvial horizon, and the other below the fragipan, which may be a buried illuvial horizon. In two of the profiles the heavy textured horizon below the fragipan had a higher clay content than the present illuvial horizon. Fragipan formation possibly resulted from the deposition of material eluviated from a fine textured mantle above. The heavy texture of the material below the fragipan was probably effective in initiating the development of the fragipan.en
dc.description.degreeMaster of Scienceen
dc.format.extent73 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/53014en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Instituteen
dc.relation.isformatofOCLC# 25850580en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1957.G536en
dc.subject.lcshSoils -- Virginiaen
dc.subject.lcshBeltsville soilsen
dc.titleThe genesis and characteristics of the fragipan of the Beltsville soilsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAgronomyen
thesis.degree.grantorVirginia Polytechnic Instituteen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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