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Multi-Scale Pedologic Investigation of Manganiferous Soils in the Maryland Piedmont

dc.contributor.advisorRabenhorst, Martinen_US
dc.contributor.authorBourgault, Rebeccaen_US
dc.date.accessioned2009-03-24T05:35:51Z
dc.date.available2009-03-24T05:35:51Z
dc.date.issued2008en_US
dc.identifier.urihttp://hdl.handle.net/1903/8982
dc.description.abstractManganese oxides are usually found in trace quantities in soils, but they are important due to their effects on soil chemistry and morphology. There are rare soils in the Maryland Piedmont that have extremely high amounts of manganese oxides that have not been previously studied. These manganiferous soils were examined at multiple scales in order to determine their spatial extent, to characterize their fundamental morphology, mineralogy, and chemical and physical properties, and to better understand their pedogenesis. The soils occupy areas of 1-2 ha in size, within 200 km<super>2</super> in eastern Frederick County and western Carroll County. The soils can have as much as 140 g kg<super>-1</super> Mn as oxides, which pigments the entire soil matrix black in subsoil horizons. It appears that the black, porous, Mn-rich material is derived directly from the dissolution of marble bedrock and accumulation of silicate residues plus Mn and Fe from within the rock.en_US
dc.format.extent13981490 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.titleMulti-Scale Pedologic Investigation of Manganiferous Soils in the Maryland Piedmonten_US
dc.typeThesisen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.contributor.departmentPlant Science and Landscape Architecture (PSLA)en_US
dc.subject.pqcontrolledAgriculture, Soil Scienceen_US
dc.subject.pqcontrolledChemistry, Agriculturalen_US
dc.subject.pqcontrolledGeologyen_US
dc.subject.pquncontrolleddolomite marbleen_US
dc.subject.pquncontrolledelectromagnetic inductionen_US
dc.subject.pquncontrollediron oxidesen_US
dc.subject.pquncontrolledmanganese oxidesen_US
dc.subject.pquncontrollednon-carbonate residueen_US
dc.subject.pquncontrolledrare soilsen_US


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