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dc.contributor.authorvan der Kolk, Dolores A.
dc.date.accessioned2022-03-16T18:27:18Z
dc.date.available2022-03-16T18:27:18Z
dc.date.issued2010-05
dc.identifier.urihttp://hdl.handle.net/11122/12759
dc.descriptionThesis (M.S.) University of Alaska Fairbanks, 2010en_US
dc.description.abstract"Organic-rich, marine mudstone known informally as the Lower Cretaceous (Barremian-Aptian) pebble shale unit (PSU) is exposed in the northeastern Brooks Range. Outcrops were examined along the Canning River, an unnamed tributary of the Katakturuk River, and Marsh Creek. Gamma-ray data was measured for each stratigraphic section in order to correlate outcrop with wire-line well logs. Samples of the PSU were collected for thin section petrography, lithostratigraphy, biostratigraphy, total organic carbon (TOC), Rock-Eval II, vitrinite reflectance (R₀), and X-ray Fluorescence. The PSU contains bioturbated and laminated mudstones with thin-bedded siltstones interpreted as interbedded hemipelagites and turbidites. PSU foraminifers were deposited on the outer shelf and upper slope. Intervals with high TOC (2 to 6 wt %) indicate good source-rock quantity in the PSU; however, Rock Eval results suggest poor source-rock quality related to elevated thermal maturities (1.3 to 1.8 %R₀). The PSU is depleted in metals relative to average black shale"--Leaf iiien_US
dc.description.sponsorshipAlaska’s Division of Geological & Geophysical Surveys, Alaska Geological Society, the American Association of Petroleum Geologists, BP, the Geological Society of America, Geophysical Society of Alaska, University of Alaska Fairbanksen_US
dc.description.tableofcontents1. Introduction -- 2. Source-rock potential of the Lower Cretaceous Pebble Shale Unit, northeastern Alaska -- 3. Geochemistry, sedimentology, and stratigraphy of the Lower Cretaceous Pebble Shale Unit, northeastern Alaska -- 4. Conclusion -- References.en_US
dc.language.isoen_USen_US
dc.subjectStratigraphic geologyen_US
dc.subjectCretaceous geologyen_US
dc.subjectGeochemistryen_US
dc.subjectSedimentologyen_US
dc.subjectSadlerochit Mountainsen_US
dc.subject.otherMaster of Science in Geologyen_US
dc.titleGeochemistry, sedimentology, and stratigraphy of the Lower Cretaceous pebble shale unit, northeastern Alaskaen_US
dc.typeThesisen_US
dc.type.degreemsen_US
dc.identifier.departmentDepartment of Geology and Geophysicsen_US
dc.contributor.chairWhalen, Michael T.
dc.contributor.committeeMcCarthy, Paul J.
dc.contributor.committeeNewberry, Rainer J.
dc.contributor.committeeWartes, Marwan A.
refterms.dateFOA2022-03-16T18:27:19Z


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