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| Harland, Rex; Asteman, Irina Polovodova; Morley, Audrey; Morris, Angela; Harris, Anthony; Howe, John A.. |
| The analyses of dinoflagellate cyst records, from the latest Quaternary sediments recovered from DSDP Core 610A taken on the Feni Ridge in the southern Rockall Trough, and part of core MD01-2461 on the continental margin of the Porcupine Seabight in the eastern North Atlantic Ocean, has provided evidence for significant oceanographic change encompassing the Last Glacial Maximum (LGM) and part of the Holocene. This together with other published records has led to a regional evaluation of oceanographic change in the eastern North Atlantic over the past 68 ka, based upon a distinctive dinoflagellate event ecostratigraphy. These changes reflect changes in the surface waters of the North Atlantic Current (NAC), and perhaps the deeper thermohaline Atlantic... |
| Tipo: Text |
Palavras-chave: Earth science. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00340/45125/44540.pdf |
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| Smeaton, Craig; Austin, William E. N.; Davies, Althea L.; Baltzer, Agnes; Abell, Richard E.; Howe, John A.. |
| Quantifying marine sedimentary carbon stocks is key to improving our understanding of long-term storage of carbon in the coastal ocean and to further constraining the global carbon cycle. Here we present a methodological approach which combines seismic geophysics and geochemical measurements to quantitatively estimate the total stock of carbon held within marine sediment. Through the application of this methodology to Loch Sunart, a fjord on the west coast of Scotland, we have generated the first full sedimentary carbon inventory for a fjordic system. The sediments of Loch Sunart hold 26.9 ± 0.5 Mt of carbon split between 11.5 ± 0.2 and 15.0 ± 0.4 Mt of organic and inorganic carbon respectively. These new quantitative estimates of carbon stored in coastal... |
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| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00355/46591/46404.pdf |
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