Articles | Volume 42, issue 2
https://doi.org/10.5194/jm-42-95-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-42-95-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Sep 2023
Research article |
| 13 Sep 2023
| 13 Sep 2023
Paleoenvironmental changes related to the variations of the sea-ice cover during the Late Holocene in an Antarctic fjord (Edisto Inlet, Ross Sea) inferred by foraminiferal association
Dipartimento di Scienze Ambientali, Informatica e statistica, Università Ca' Foscari Venezia, Via Torino 155,
30172, Venice, Italy
Dipartimento di Scienze della Terra, Università di Pisa, Via Santa
Maria, 53, 56126, Pisa, Italy
Caterina Morigi
Dipartimento di Scienze della Terra, Università di Pisa, Via Santa
Maria, 53, 56126, Pisa, Italy
Romana Melis
Dipartimento di Matematica e Geoscienze, Università di Trieste, Via E.
Weiss 2, 34127, Trieste, Italy
Alessio Di Roberto
Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione di Pisa,
Via della C, Battisti 53, 56125, Pisa, Italy
Tommaso Tesi
Istituto di Scienze Polari – Consiglio Nazionale delle Ricerche ISP-CNR,
Via P. Gobetti 101, 40129, Bologna, Italy
Fiorenza Torricella
Istituto Nazionale di Oceanografia e di Geofisica Sperimentale (OGS),
Borgo Grotta Gigante 42/c, 34010, Sgonico, Trieste, Italy
Leonardo Langone
Istituto di Scienze Polari – Consiglio Nazionale delle Ricerche ISP-CNR,
Via P. Gobetti 101, 40129, Bologna, Italy
Patrizia Giordano
Istituto di Scienze Polari – Consiglio Nazionale delle Ricerche ISP-CNR,
Via P. Gobetti 101, 40129, Bologna, Italy
Ester Colizza
Dipartimento di Matematica e Geoscienze, Università di Trieste, Via E.
Weiss 2, 34127, Trieste, Italy
Lucilla Capotondi
Istituto di Scienze Marine – Consiglio Nazionale delle Ricerche ISMAR-CNR,
Via P. Gobetti 101, 40129, Bologna, Italy
Andrea Gallerani
Istituto di Scienze Marine – Consiglio Nazionale delle Ricerche ISMAR-CNR,
Via P. Gobetti 101, 40129, Bologna, Italy
Karen Gariboldi
Dipartimento di Scienze Ambientali, Informatica e statistica, Università Ca' Foscari Venezia, Via Torino 155,
30172, Venice, Italy
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Joan A. Salvadó, Tommaso Tesi, Marcus Sundbom, Emma Karlsson, Martin Kruså, Igor P. Semiletov, Elena Panova, and Örjan Gustafsson
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Fluvial discharge and coastal erosion of the permafrost-dominated East Siberian Arctic delivers large quantities of terrigenous organic carbon (Terr-OC) to marine waters. We assessed its fate and composition in different marine pools with a suite of biomarkers. The dissolved organic carbon is transporting off-shelf “young” and fresh vascular plant material, while sedimentary and near-bottom particulate organic carbon preferentially carries old organic carbon released from thawing permafrost.
Related subject area
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Romana Melis, Lucilla Capotondi, Fiorenza Torricella, Patrizia Ferretti, Andrea Geniram, Jong Kuk Hong, Gerhard Kuhn, Boo-Keun Khim, Sookwan Kim, Elisa Malinverno, Kyu Cheul Yoo, and Ester Colizza
J. Micropalaeontol., 40, 15–35, https://doi.org/10.5194/jm-40-15-2021, https://doi.org/10.5194/jm-40-15-2021, 2021
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Integrated micropaleontological (planktic and benthic foraminifera, diatoms, and silicoflagellates) analysis, together with textural and geochemical results of a deep-sea core from the Hallett Ridge (northwestern Ross Sea), provides new data for late Quaternary (23–2 ka) paleoenvironmental and paleoceanographic reconstructions of this region. Results allow us to identify three time intervals: the glacial–deglacial transition, the deglacial period, and the interglacial period.
Giulia Barbieri and Stefano Claudio Vaiani
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The challenge between benthic foraminifera and ostracoda is open: which is the most reliable microfossil group for precise palaeoenvironmental reconstructions? Results from a lagoonal succession of the Romagna coast (Italy) reveal that the winner is ostracoda, due to their higher abundance, higher differentiation, and precise relationships between species and ecological parameters. Nevertheless, palaeoenvironmental stress and additional details are provided by benthic foraminifera.
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Short summary
A sediment core was analysed, focusing over the 2000 years, in Edisto Inlet. Benthic and planktic foraminifera were picked and used to determine changes in the faunal composition. Using other nearby cores, by comparing different proxies, we were able to identify a succession of three different environmental phases over the studied period: a seasonal-cycle phase (from 2000 to around 1500 years BP), a transitional phase (from 1500 to 700 years BP) and a cold phase (from 700 years to present).
A sediment core was analysed, focusing over the 2000 years, in Edisto Inlet. Benthic and...
