Browsing Bergen Open Research Archive by Author "Moltubakk, Karen Elisabeth"

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Detecting anaerobic methane oxidation coupled to sulfate reduction in hydrothermal sediments

Moltubakk, Karen Elisabeth (Master thesis, 2022-03-07)

The barite field is a low-temperature vent field, characterized by microbial activity and high fluid values of $NH_4$, $SO_4^{2-}$, and $CH_4$. Geochemical analysis indicates a hydrothermal system with a sedimentary input ...
Hydrothermal activity fuels microbial sulfate reduction in deep and distal marine settings along the Arctic Mid Ocean Ridges

Roerdink, Desiree Lisette; Vulcano, Francesca; Landro, Jan-Kristoffer; Moltubakk, Karen Elisabeth; Babel, Hannah Rose; Jørgensen, Steffen Leth; Baumberger, Tamara; Økland, Ingeborg Elisabet; Reeves, Eoghan; Thorseth, Ingunn Hindenes; Reigstad, Laila Johanne; Strauss, Harald; Steen, Ida Helene (Journal article; Peer reviewed, 2023)

Microbial sulfate reduction is generally limited in the deep sea compared to shallower marine environments, but cold seeps and hydrothermal systems are considered an exception. Here, we report sulfate reduction rates and ...