Featured Publications
Sulfur cycling likely obscures dynamic biologically-driven iron redox cycling in contemporary methane seep environments. May 2024. Marine methane seeps are highly productive seafloor sites driven in part by a robust sulfur cycle. The impact that sulfur has on the cycling of bioavailable iron is poorly understood. The 2018 Hunting Bubbles: Understanding Plumes of Seafloor Methane Expedition team gathered data Bager and Girguis (2024) believe suggests that, in most cases, sulfur cycling may restrict the biological “ferrous wheel” in contemporary environments through a combination of the sulfur-adapted sediment-dwelling ecosystems and the abiotic reactions they influence.
Dismantling of an isolated tropical carbonate platform through flank collapse and canyon erosion, Coral Sea, Northeast Australia. September 2024. The steep slopes of carbonate platforms frequently display large-scale sediment destabilization features like rockfalls, mass transport complexes, and slope erosion. The processes and factors triggering such instabilities and how they interact are a matter of ongoing discussion. Betzler et al. use hydroacoustic, sedimentological, and seafloor imaging data to map and characterize slope instabilities and potential controlling factors at the flank of the isolated Tregrosse carbonate bank in the Coral Sea, northeast Australia. Research data for this paper was collected during the Visioning the Coral Sea Marine Park and Seamounts, Canyons & Reefs of the Coral Sea expeditions in 2020.
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