Behaviour of Accessory Monazite and Age Significance During Metamorphism and Partial Melting During Grenville Orogeny: An Example from Otter Lake Area, Central Metasedimentary Belt, QC

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dc.contributor.authorSéjourné, Brianna L.
dc.date.accessioned2014-09-17T19:10:20Z
dc.date.available2014-09-17T19:10:20Z
dc.date.created2014
dc.date.issued2014
dc.identifier.urihttp://hdl.handle.net/10393/31574
dc.identifier.urihttp://dx.doi.org/10.20381/ruor-6587
dc.description.abstractThe accretionary Mesoproterozoic Grenville Orogeny (ca. 1300 – 980 Ma) involving the Central Metasedimentary Belt is a key building block of the eastern Laurentian margin. A petrographic, mineralogical, geochemical and geochronological study of the migmatite complex in Otter Lake (QC) within the Marble Domain is used to resolve regional metamorphic and magmatic events primarily recorded in the leucosome accessory minerals (i.e. monazite). The relationship between the different stages of monazite and garnet growth and dissolution during the tectonic evolution of the orogenic history for the interpreted metasomatic (injected) and anatectic (in situ) monazite-bearing neosomes from this study supports published thermochronological work in the area and challenges the claim that the Central Metasedimentary Belt was not heated above 500 °C during the Ottawan phase. Instead, the region shows Grenville magmatic and anatectic events were overprinted by high-temperature, fluid-rich Ottawan-phase metamorphism recorded within both injected (monazite-bearing) and in situ (monazite- and garnet-bearing) neosomes.
dc.language.isoen
dc.publisherUniversité d'Ottawa / University of Ottawa
dc.subjectQuebec
dc.subjectU-Th-Pb EMPA geochronology
dc.subjectGeochemistry
dc.subjectGarnet
dc.subjectMonazite
dc.subjectNeosomes
dc.subjectPartial melting
dc.subjectMetasomatism
dc.subjectAnatexis
dc.subjectMigmatite
dc.subjectMarble Domain
dc.subjectCentral Metasedimentary Belt
dc.subjectGrenville Province
dc.subjectMesoproterozoic
dc.titleBehaviour of Accessory Monazite and Age Significance During Metamorphism and Partial Melting During Grenville Orogeny: An Example from Otter Lake Area, Central Metasedimentary Belt, QC
dc.typeThesis
dc.faculty.departmentSciences de la terre / Earth Sciences
dc.contributor.supervisorSchneider, David
dc.degree.nameMSc
dc.degree.levelmasters
dc.degree.disciplineSciences / Science
thesis.degree.nameMSc
thesis.degree.levelMasters
thesis.degree.disciplineSciences / Science
uottawa.departmentSciences de la terre / Earth Sciences
CollectionThèses, 2011 - // Theses, 2011 -

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