Fossil diatoms in Arctic marine surface sediments
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Abstract
Diatoms are one of the main constituents of marine phytoplankton in the Arctic, and thanks to their siliceous skeletons, diatom fossils are relatively well preserved in sediments. Due to their species-specific sensitivity to different ocean conditions, their abundance and assemblages in sediments are routinely used by paleoceanographers to reconstruct the state of the surface ocean in the past (Koç 2007). By using statistical methods, we can obtain valuable knowledge about their ecological preferences (Oksman et al. 2019) and generate quantitative reconstructions of various parameters, such as sea-surface temperature and sea-ice concentration through time (Krawczyk et al. 2021; Sha et al. 2014). The Marine Arctic Diatoms (MARDI) working group (WG) (pastglobalchanges.org/mardi) aims to advance knowledge on marine-diatom ecology and diatom-based reconstructions by compiling and harmonizing data from surface-sediment samples across the Arctic.
| Publication type | Newsletter |
|---|---|
| Publication Subtype | Newsletter |
| Title | Fossil diatoms in Arctic marine surface sediments |
| Series title | Pages Magazine |
| DOI | 10.22498/pages.33.1.40 |
| Volume | 33 |
| Issue | 1 |
| Publication Date | April 01, 2025 |
| Year Published | 2025 |
| Language | English |
| Publisher | PAGES Past Global Changes |
| Contributing office(s) | Geology, Minerals, Energy, and Geophysics Science Center |
| Description | 1 p. |
| First page | 40 |