Zobrazeno 1 - 10
of 130
pro vyhledávání: '"Jochen Knies"'
Autor:
Markus Diesing, Sarah Paradis, Henning Jensen, Terje Thorsnes, Lilja Rún Bjarnadóttir, Jochen Knies
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-13 (2024)
Abstract The role of continental margin sediments in the carbon cycle and the associated management potential for climate mitigation are currently poorly understood. Previous work has indicated that margin sediments store significant amounts of organ
Externí odkaz:
https://doaj.org/article/5a70901f2a4c4fd58484817ec69d24ef
Autor:
Naima El bani Altuna, Mohamed M. Ezat, Lukas Smik, Francesco Muschitiello, Simon T. Belt, Jochen Knies, Tine L. Rasmussen
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-12 (2024)
Abstract The variability of Arctic sea-ice during abrupt stadial-interstadial shifts in the last glacial period remain poorly understood. Here, we investigated the millennial-scale relationship, with a focus on Heinrich Stadials (HS), between sea-ice
Externí odkaz:
https://doaj.org/article/0173e131854746d691b33aadbf5ff7b3
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
Hydrocarbon gases formed from biotic and abiotic processes are released through the seafloor at different locations around the world. They have been widely observed directly in video and photo data, and indirectly on echosounder data. Even though bio
Externí odkaz:
https://doaj.org/article/b98b4707555e42d1a16ba0d511b9e5c3
Autor:
Tobias Himmler, Doris Wagner, Diana Sahy, Sunil Vadakkepuliyambatta, Shyam Chand, Tõnu Martma, Kalle Kirsimäe, Rune Mattingsdal, Giuliana Panieri, Stefan Bünz, Daniel J. Condon, Jochen Knies, Aivo Lepland
Publikováno v:
Frontiers in Earth Science, Vol 12 (2024)
The hydrocarbon seepage chronology during deglaciation across the formerly glaciated Barents Sea was established using uranium-thorium (U–Th) dating of seep carbonates. Seep carbonates were sampled with remotely operated vehicles (ROV) from the sea
Externí odkaz:
https://doaj.org/article/e6919fd482994d92850de99e0fa77be8
Autor:
Giuliana Panieri, Jochen Knies, Sunil Vadakkepuliyambatta, Amicia L. Lee, Carsten J. Schubert
Publikováno v:
Communications Earth & Environment, Vol 4, Iss 1, Pp 1-11 (2023)
Episodic methane leakage events from the seafloor of the Arctic–Atlantic gateway region occurred before and during the mid-Pleistocene transition, suggesting foraminiferal stable carbon isotope and source-specific biomarker analyses of borehole sam
Externí odkaz:
https://doaj.org/article/24f775b416674603bc7543f5a016be6f
Publisher Correction: Sea ice-ocean coupling during Heinrich Stadials in the Atlantic–Arctic gateway
Autor:
Naima El bani Altuna, Mohamed M. Ezat, Lukas Smik, Francesco Muschitiello, Simon T. Belt, Jochen Knies, Tine L. Rasmussen
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-1 (2024)
Externí odkaz:
https://doaj.org/article/8fce329c12cd4cb38650df003087f7ed
Autor:
Melina Sinner, Wei Li Hong, Loïc N. Michel, Sunil Vadakkepuliyambatta, Jochen Knies, Arunima Sen
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
We used high-resolution imagery within a Geographic Information System (GIS), free gas and porewater analyses and animal bulk stable isotope measurements to characterize the biotic and abiotic aspects of the newly discovered Vestbrona Carbonate Field
Externí odkaz:
https://doaj.org/article/ff3749c683984b4795256f956f1eb0cd
Autor:
Jochen Knies, Jasmin Schönenberger, Horst Zwingmann, Roelant van der Lelij, Morten Smelror, Per Erik Vullum, Marco Brönner, Christoph Vogt, Ola Fredin, Axel Müller, Stephen E. Grasby, Benoit Beauchamp, Giulio Viola
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-12 (2022)
Following the latest Permian extinction, nutrient availability from enhanced continental weathering enabled biological recovery in the ocean, according to K-Ar dating of clay minerals and nitrogen isotope analyses from high northern latitudes.
Externí odkaz:
https://doaj.org/article/e078d8b1fe0145158fdbe10708570a73
Autor:
Frances Cooke, Andreia Plaza-Faverola, Stefan Bünz, Nabil Sultan, Hariharan Ramachandran, Heather Bedle, Henry Patton, Sunny Singhroha, Jochen Knies
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Seafloor hydrocarbon seepage is a natural fluid release process that occurs worldwide on continental shelves, slopes, and in deep oceanic basins. The Vestnesa sedimentary ridge in the eastern Fram Strait hosts a deep-water gas hydrate system that bec
Externí odkaz:
https://doaj.org/article/507f3746919d462695c9dcf81444eef0
Autor:
Jochen Knies
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 17, Pp n/a-n/a (2022)
Abstract In this work, I report on the coupling of dinitrogen (N2) fixation and denitrification in oxygen‐deficient waters of the Arctic Ocean during the Paleogene. This coupling fertilized marine phytoplankton growth and favored organic carbon bur
Externí odkaz:
https://doaj.org/article/b4f3be0854c6404584cf9e00f6891028