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Title	Linking marine core lithofacies and mineral and grain-size compositions on the Baffin Island Margin: changes in provenance and transport
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Author	Andrews, J T; Jenner, K; Campbell, C
Source	Journal of Sedimentary Research vol. 90, issue 7, 2020 p. 763-775, https://doi.org/10.2110/jsr.2020.50
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Year	2020
Alt Series	Natural Resources Canada, Contribution Series 20200408
Publisher	SEPM Society for Sedimentary Geology
Document	serial
Lang.	English
Media	paper; on-line; digital
File format	pdf; html
Province	Nunavut
Area	Baffin Island; Canada
Lat/Long WENS	-81.0000 -55.0000 74.0000 67.0000
Subjects	Science and Technology; sedimentology; lithofacies; minerals; provenance; sediment transport
Illustrations	location maps; profiles; graphs; diagrams; tables
Released	2020 08 04
Abstract	We evaluate the linkages between lithofacies and mineral composition of late Quaternary sediments along the Baffin Slope for cores 2013029 64, 74, and 77. Four major lithofacies were identified: diamicton (L1), laminated red-brown mud (L2), tan carbonate mud (L3), and brown bioturbated mud (L4). In addition, gold-brown mud (L2a) beds were identified within red-brown mud throughout the Baffin margin and a thin, locally distributed light gray mud (L2b), also identified within red-brown mud, was localized to the Home Bay region. A classification decision tree (CDT) correctly predicted ~ 87% of the lithofacies based on five binary choices based on the estimated weight %s of (in order): quartz, kaolinite, plagioclase, iron oxides, and smectites. The detrital tan carbonate (DC) minerals, calcite and dolomite, did not appear in the chosen CDT solution although this lithofacies is easily recognized in cores because of its tan color and the facies is well predicted in the CDT. The addition of grain size did not substantially improve the prediction of the lithofacies although it did change the % importance of the minerals in the CDT.
GEOSCAN ID	327222