Upper Jurassic-Lower Cretaceous palynostratigraphy of the Aklavik Range, Northwest Territories, Arctic Canada

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dc.contributor.advisorBeauchamp, Benoît
dc.contributor.advisorGalloway, Jennifer M.
dc.contributor.authorNguyen, Anne Van
dc.contributor.committeememberDutchak, Alex
dc.contributor.committeememberHenderson, Charles M.
dc.date2019-06
dc.date.accessioned2019-04-29T22:05:28Z
dc.date.available2019-04-29T22:05:28Z
dc.date.issued2019-04-26
dc.description.abstractQuantitative palynostratigraphy of Lower Cretaceous rocks from the Aklavik Range, Northwest Territories, is used to provide insight into paleoenvironmental conditions in the Boreal Realm during the Jurassic-Cretaceous transition. Paleoenvironmental reconstruction of this time interval is based on palynoassemblages preserved in the Husky Formation (upper Tithonian – lower Berriasian). Relative abundance of ecologically-important spore and pollen taxa such as Cupressaceae-Taxaceae and Classopollis classoides pollen reveal increasing humid conditions with a seasonally arid phase during the early Berriasian. Dinoflagellate cyst assemblages preserved in the purported Martin Creek Formation (lower Berriasian) include potential biostratigraphically significant species Oligosphaeridium cf. tenuiprocessum. A revised late Albian age is proposed for the succession, which may be stratigraphically attributed to the Arctic Red Formation. High relative abundance and diversity of fern spores indicate that high moisture conditions prevailed. Trends in the relative abundance of gymnosperm pollen suggest a transition from cool to warm temperatures during this time period.en_US
dc.identifier.citationNguyen, A. V. (2019). Upper Jurassic-Lower Cretaceous palynostratigraphy of the Aklavik Range, Northwest Territories, Arctic Canada (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/36424
dc.identifier.urihttp://hdl.handle.net/1880/110242
dc.language.isoengen_US
dc.publisher.facultyScienceen_US
dc.publisher.institutionUniversity of Calgaryen
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.en_US
dc.subjectbiostratigraphyen_US
dc.subject.classificationEcologyen_US
dc.subject.classificationGeologyen_US
dc.subject.classificationPaleobotanyen_US
dc.subject.classificationPaleoecologyen_US
dc.subject.classificationPaleontologyen_US
dc.subject.classificationPalynologyen_US
dc.titleUpper Jurassic-Lower Cretaceous palynostratigraphy of the Aklavik Range, Northwest Territories, Arctic Canadaen_US
dc.typemaster thesisen_US
thesis.degree.disciplineGeoscienceen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrue
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