|
|
Dessandier, Pierre-antoine; Borrelli, Chiara; Yao, Haoyi; Sauer, Simone; Hong, Wei-li; Panieri, Giuliana. |
Paleoceanographic investigations in the Arctic and north Atlantic are crucial to understanding past and current climate change, in particular considering amounts of pressure-temperature sensitive gas stored in marine sediments of the region. Many paleoceanographic studies are based on foraminiferal oxygen and carbon stable isotope compositions (δ18O, δ13C) from either planktonic specimens, benthic specimens or both. However, in seafloor regions promixal to high upward methane fluxes, such as where seafloor gas emission and shallow gas hydrate-bearing sediment occur, foraminiferal δ18O and δ13C display a wide range of values. Our study focuses on foraminiferal stable isotope signatures in shallow sediment at core sites in the Arctic and North Atlantic... |
Tipo: Text |
Palavras-chave: Foraminiferal stable isotopes; Gas hydrates; Authigenic carbonates Arctic Ocean; North Atlantic Ocean. |
Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00610/72215/71338.pdf |
| |