Zobrazeno 1 - 10
of 143
pro vyhledávání: '"Sabine Kasten"'
Publikováno v:
Quaternary Science Advances, Vol 13, Iss , Pp 100156- (2024)
The climate in the South Atlantic sector of the sub-Antarctic, and therefore on and around the island of South Georgia, is dependent on the Southern Hemisphere Westerlies (SHW) and the Antarctic Circumpolar Current (ACC). The SHW and the ACC, in turn
Externí odkaz:
https://doaj.org/article/24bfbbe3ced5442a82bff6aa7b9b4d36
Autor:
Male Köster, Michael Staubwasser, Anette Meixner, Simone A. Kasemann, Hayley R. Manners, Yuki Morono, Fumio Inagaki, Verena B. Heuer, Sabine Kasten, Susann Henkel
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract Dissimilatory iron reduction (DIR) is suggested to be one of the earliest forms of microbial respiration. It plays an important role in the biogeochemical cycling of iron in modern and ancient sediments. Since microbial iron cycling is typic
Externí odkaz:
https://doaj.org/article/5f2d260488d043d09b0addae3d10217a
Autor:
Jessica B. Volz, Walter Geibert, Dennis Köhler, Michiel M. Rutgers van der Loeff, Sabine Kasten
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-10 (2023)
Abstract In search for critical elements, polymetallic nodules at the deep abyssal seafloor are targeted for mining operations. Nodules efficiently scavenge and retain several naturally occurring uranium-series radioisotopes, which predominantly emit
Externí odkaz:
https://doaj.org/article/aa4933a3f7644c4b881bfa4619292867
Autor:
Zhimian Cao, Xinting Rao, Yating Li, Qingquan Hong, Lin Wei, Yang Yu, Claudia Ehlert, Bo Liu, Christopher Siebert, Ed C. Hathorne, Zhouling Zhang, Florian Scholz, Sabine Kasten, Martin Frank
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 24, Iss 6, Pp n/a-n/a (2023)
Abstract The development of stable barium (Ba) isotope measurements provides a novel tool to investigate the geochemical cycling of Ba in the ocean and its sediments. In sediment pore waters, gradients of dissolved Ba concentrations result from vario
Externí odkaz:
https://doaj.org/article/3061d6160201444a85274991651d7761
Autor:
Fynn Warnke, Tilmann Schwenk, Elda Miramontes, Volkhard Spiess, Stefan Wenau, Graziella Bozzano, Michele Baqués, Sabine Kasten
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
Seafloor depressions (SD) are features commonly observed on the ocean floor. They often occur as circular, small-sized (up to 10 s of m) incisions caused by fluid expulsion. Larger depressions (100s m to km) are considerably less abundant, and their
Externí odkaz:
https://doaj.org/article/b7a24c6830f2423da8a09e74d537244e
Publikováno v:
Microorganisms, Vol 11, Iss 6, p 1572 (2023)
The area around the Antarctic Peninsula (AP) is facing rapid climatic and environmental changes, with so far unknown impacts on the benthic microbial communities of the continental shelves. In this study, we investigated the impact of contrasting sea
Externí odkaz:
https://doaj.org/article/93acd1e507ab4009b2e18fc8000f0b73
Publikováno v:
Frontiers in Microbiology, Vol 13 (2022)
Externí odkaz:
https://doaj.org/article/127308b560d94ae8b29601179e0615f7
Publikováno v:
Frontiers in Earth Science, Vol 9 (2021)
Recent measurements of pore-water oxygen profiles in ridge flank sediments of the East Pacific Rise revealed an upward-directed diffusive oxygen flux from the hydrothermally active crust into the overlying sediment. This double-sided oxygenation from
Externí odkaz:
https://doaj.org/article/223516423ed246e880a411bee5b0eae5
Autor:
Male Köster, Myriam Kars, Florence Schubotz, Man‐Yin Tsang, Markus Maisch, Andreas Kappler, Yuki Morono, Fumio Inagaki, Verena B. Heuer, Sabine Kasten, Susann Henkel
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 22, Iss 8, Pp n/a-n/a (2021)
Abstract Biogeochemical processes in subseafloor sediments are closely coupled to global element cycles. To improve the understanding of changes in biogeochemical conditions on geological timescales, we investigate sediment cores from a 1,180 m deep
Externí odkaz:
https://doaj.org/article/574af1dd06c740478c50ca0c21af538f
Autor:
Annika Schnakenberg, David A. Aromokeye, Ajinkya Kulkarni, Lisa Maier, Lea C. Wunder, Tim Richter-Heitmann, Thomas Pape, Petra Pop Ristova, Solveig I. Bühring, Ingrid Dohrmann, Gerhard Bohrmann, Sabine Kasten, Michael W. Friedrich
Publikováno v:
Frontiers in Microbiology, Vol 12 (2021)
Anaerobic methane oxidizing archaea (ANME) mediate anaerobic oxidation of methane (AOM) in marine sediments and are therefore important for controlling atmospheric methane concentrations in the water column and ultimately the atmosphere. Numerous pre
Externí odkaz:
https://doaj.org/article/63dfb203533d4984b7eb05125513d63f