Distribution and sources of organic matter in surface marine sediments across the North American Arctic margin
| Autor: | Robie W. Macdonald, Zou Zou A. Kuzyk, Charles Gobeil, Alison E. O'Connor, Miguel A. Goñi, Mark B. Yunker |
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| Rok vydání: | 2013 |
| Předmět: |
0106 biological sciences
Total organic carbon chemistry.chemical_classification Provenance 010504 meteorology & atmospheric sciences Terrigenous sediment 010604 marine biology & hydrobiology Oceanography 01 natural sciences Geophysics Total inorganic carbon Arctic chemistry Space and Planetary Science Geochemistry and Petrology Isotopes of carbon Earth and Planetary Sciences (miscellaneous) Sedimentary organic matter Organic matter 14. Life underwater Geology 0105 earth and related environmental sciences |
| Zdroj: | Journal of Geophysical Research: Oceans. 118:4017-4035 |
| ISSN: | 2169-9275 |
| Popis: | [1] As part of the International Polar Year research program, we conducted a survey of surface marine sediments from box cores along a section extending from the Bering Sea to Davis Strait via the Canadian Archipelago. We used bulk elemental and isotopic compositions, together with biomarkers and principal components analysis, to elucidate the distribution of marine and terrestrial organic matter in different regions of the North American Arctic margin. Marked regional contrasts were observed in organic carbon loadings, with the highest values (� 1m g Cm � 2 sediment) found in sites along Barrow Canyon and the Chukchi and Bering shelves, all of which were characterized by sediments with low oxygen exposure, as inferred from thin layers ( |
| Databáze: | OpenAIRE |
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