Broken-formations of the Pulaski thrust sheet near Pulaski, Virginia

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dc.contributor.authorSchultz, Arthur P.en
dc.contributor.committeechairLowry, Wallace D.en
dc.contributor.committeememberGray, D.R.en
dc.contributor.committeememberWones, D.R.en
dc.contributor.committeememberCostain, John K.en
dc.contributor.committeememberBambach, Richard K.en
dc.contributor.committeememberBartholomew, M.J.en
dc.contributor.departmentGeologyen
dc.date.accessioned2015-04-29T18:30:56Zen
dc.date.available2015-04-29T18:30:56Zen
dc.date.issued1983en
dc.description.abstractBroken-formations (Hsu, 1974; Harris and Milici, 1977) occur in the lower part of the Pulaski thrust sheet and contain some of the most strongly deformed sedimentary rocks in the Valley and Ridge province of the southern Appalachians. Deformation in this zone ranges from grain-scale cataclasis to regional-scale faulting. The broken-formations are distinguished from rocks structurally higher on the sheet and from rocks of the underlying Saltville sheet by (1) a sharp increase in the variability of fold and fault styles, (2) greater ranges in fold plunges and dips of axial surfaces, (3) a low degree of preferred orientation of folds and faults, (4) an increase in the frequency of mesoscopic structures, and (5) the presence of Max Meadows tectonic breccia. Structural analyses indicate that deformation in the broken-formations is Alleghanian in age and that the deformed zone formed under elastico-frictional conditions, possibly under elevated fluid pressures with temporally variant stresses and that lithology may have played an important role in localizing the broken-formations along the base of the Pulaski sheet.en
dc.description.degreePh. D.en
dc.format.extentviii, 99, [1] leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/51938en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 10921942en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1983.S249en
dc.subject.lcshThrust faults (Geology) -- Virginia -- Pulaski Countyen
dc.titleBroken-formations of the Pulaski thrust sheet near Pulaski, Virginiaen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineGeologyen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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