Articles | Volume 22, issue 20
https://doi.org/10.5194/bg-22-5921-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-5921-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Oct 2025
Research article |
| 22 Oct 2025
| 22 Oct 2025
Distribution and sources of organic matter in submarine canyons incising the Gulf of Palermo, Sicily: A multi-parameter investigation
Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics, ETH Zurich, Zürich, Switzerland
Geological Institute, ETH Zürich, Zürich, Switzerland
Hannah Gies
Geological Institute, ETH Zürich, Zürich, Switzerland
Davide Moccia
Dipartimento di Scienze della Vita e dell'Ambiente, Università degli Studi di Cagliari, Cagliari, 09126, Italy
Julie Lattaud
Geological Institute, ETH Zürich, Zürich, Switzerland
Environmental Science department, Stockholm University, 11418, Stockholm, Sweden
Lisa Bröder
Geological Institute, ETH Zürich, Zürich, Switzerland
Negar Haghipour
Geological Institute, ETH Zürich, Zürich, Switzerland
Laboratory for Ion Beam Physics, Department of Physics, ETH Zürich, 8093 Zürich, Switzerland
Antonio Pusceddu
Dipartimento di Scienze della Vita e dell'Ambiente, Università degli Studi di Cagliari, Cagliari, 09126, Italy
Albert Palanques
Marine Sciences Institute, Consejo Superior de Investigaciones Científicas, Barcelona, 08003, Spain
Pere Puig
Marine Sciences Institute, Consejo Superior de Investigaciones Científicas, Barcelona, 08003, Spain
Claudio Lo Iacono
Marine Sciences Institute, Consejo Superior de Investigaciones Científicas, Barcelona, 08003, Spain
Timothy I. Eglinton
Geological Institute, ETH Zürich, Zürich, Switzerland
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Short summary
The Gulf of Palermo features several submarine canyons, where 50–70 % of the organic carbon deposited in them is terrigenous (OC-terr). The contribution of OC-terr generally decreases offshore and across canyons. Rivers deliver OC-terr, which is redistributed by regional currents and intercepted by the farthest down-current canyon, while the other submarine canyons receive terrigenous organic carbon from more distal sources. Bottom trawling also contributes to the transfer of OC-terr down-canyon.
The Gulf of Palermo features several submarine canyons, where 50–70 % of the organic carbon...
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