Structural geology of the Pend d'Oreille area and tectonic evolution of the southern Kootenay Arc

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dc.contributor.advisorSimony, Philip S.
dc.contributor.authorEinarsen, Jon Marion
dc.coverage.spatial200000819en
dc.date.accessioned2005-07-29T23:08:30Z
dc.date.available2005-07-29T23:08:30Z
dc.date.issued1994
dc.descriptionBibliography: p. 161-171.en
dc.description.abstractStructural and stratigraphic boundaries between late Paleozoic and early Mesozoic oceanic assemblages, the early Paleozoic North American outer continental margin, and the late Proterozoic to early Paleozoic North American miogeocline are preserved in the southern Kootenay Arc of southeastern British Columbia, in the Pend d'Oreille River area. This dissertation provides the first detailed interpretation of the structural and tectonic evolution of the southern Kootenay Arc. In the Pend d'Oreille River area the oceanic and outer continental margin assemblages are condensed against the North American miogeocline by the Waneta, Tillicum Creek and Argillite faults. All of these faults are margin-ward verging thrust faults, which are overturned at high structural levels. Mapping conducted during this study suggests that some of the Cambrian metasedimentary rocks in the hangingwall of the Argillite fault, previously mapped as Laib Formation, are laterally continuous, and correlative, to the Index Formation of the Lardeau Group. The recognition of Index Formation rocks within the study area provides the basis for the first regional structural interpretation of the southern Kootenay Arc. In addition, an erosional unconformity at the top of the Index Formation was identified during this study, indicating that a pre-Mississippian deformational event affected the North American outer continental margin in the Pend d' Oreille River area. The Argillite fault is herein interpreted to be a segment of a thrust fault that extends the length of the southern Kootenay Arc. The complete structure is described in this dissertation, and is referred to as the Kootenay Thrust. The Kootenay Thrust is a craton-ward verging thrust fault, overturned at high structural levels, that carried an island arc assemblage, marginal basin assemblages, and the lower Paleozoic outer continental margin assemblage in its hangingwall over lower to middle Paleozoic miogeoclinal stratigraphy in its footwall. This dissertation provides the first whole-rock major, trace, rare earth element, and Rb/Sr analyses of two Cretaceous stocks, and the first whole-rock major and trace element analyses of Paleozoic metabasite rocks in the Pend d' Oreille River area.en
dc.format.extentxii, 172 leaves : ill., maps, col. plates ; 30 cm.en
dc.identifier.citationEinarsen, J. M. (1994). Structural geology of the Pend d'Oreille area and tectonic evolution of the southern Kootenay Arc (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/18333en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/18333
dc.identifier.isbn0612041786en
dc.identifier.lccQE 628.5 B7 E56 1994aen
dc.identifier.urihttp://hdl.handle.net/1880/30463
dc.language.isoeng
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subject.lccQE 628.5 B7 E56 1994aen
dc.subject.lccAdditional Copy: QE 628.5 B7 E56 1994en
dc.subject.lcshGeology, Structural - British Columbia - Pend d'Oreille River Region
dc.subject.lcshPend d'Oreille River Region (B.C.)
dc.titleStructural geology of the Pend d'Oreille area and tectonic evolution of the southern Kootenay Arc
dc.typedoctoral thesis
thesis.degree.disciplineGeology and Geophysics
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameDoctor of Philosophy (PhD)
ucalgary.item.requestcopytrue
ucalgary.thesis.accessionTheses Collection 58.002:Box 970 520538280
ucalgary.thesis.additionalcopyQE 628.5 B7 E56 1994en
ucalgary.thesis.notesoffsiteen
ucalgary.thesis.uarcreleaseyen
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