Geology of the late precambrian Flat River complex and associated volcanic rocks near Durham, North Carolina

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dc.contributor.authorMcConnell, Keith I.en
dc.contributor.committeechairGlover, Lynn IIIen
dc.contributor.committeememberSinha, A. Krishnaen
dc.contributor.committeememberGilbert, M. Charlesen
dc.contributor.departmentGeological Sciencesen
dc.date.accessioned2014-03-14T21:28:44Zen
dc.date.adate2013-02-06en
dc.date.available2014-03-14T21:28:44Zen
dc.date.issued1974-12-05en
dc.date.rdate2013-02-06en
dc.date.sdate2013-02-06en
dc.description.abstractDisotopic dating of zircons from the Flat River Complex in the Carolina "slate" belt north of Durham, N.C. shows this intrusive complex to be 650 ± m.y. old. Modal analyses of granophyric groundmass compared to experimental data, the presence of vent breccias and related pyroclastic deposits, and consideration of age relations between the intrusive and extrusive rocks indicate that the Flat River was emplaced at very shallow levels (< l km) and acted as the source for most of the volcanic material surrounding the complex. The age determined for the Flat River Complex indicates that deposition of the volcanic rocks began prior to 650 m.y. ago and extends the slate belt volcanicity interval to 130 m.y. (520 to 650 m.y. b.p.) Both subareal and marine depositional environments are represented in the stratigraphic sequence.en
dc.description.degreeMaster of Scienceen
dc.format.extentiii, 64 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-02062013-040240en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-02062013-040240/en
dc.identifier.urihttp://hdl.handle.net/10919/40961en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1974.M27.pdfen
dc.relation.isformatofOCLC# 38980925en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectVolcanic rocksen
dc.subject.lccLD5655.V855 1974.M27en
dc.titleGeology of the late precambrian Flat River complex and associated volcanic rocks near Durham, North Carolinaen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineGeological Sciencesen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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