Blar i Bergen Open Research Archive på forfatter "Roerdink, Desiree"
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Geochemical transition zone powering microbial growth in subsurface sediments
Zhao, Rui; Mogollon, Jose M; Abby, Sophie; Schleper, Christa; Biddle, Jennifer; Roerdink, Desiree; Thorseth, Ingunn Hindenes; Jørgensen, Steffen Leth (Journal article; Peer reviewed, 2020)No other environment hosts as many microbial cells as the marine sedimentary biosphere. While the majority of these cells are expected to be alive, they are speculated to be persisting in a state of maintenance without net ... -
Microbial community structure in Arctic lake sediments reflect variations in Holocene climate conditions
Møller, Tor Einar; Van Der Bilt, Willem; Roerdink, Desiree; Jørgensen, Steffen Leth (Journal article; Peer reviewed, 2020)The reconstruction of past climate variability using physical and geochemical parameters from lake sedimentary records is a well-established and widely used approach. These geological records are also known to contain large ... -
Reworking of atmospheric sulfur in a Paleoarchean hydrothermal system at Londozi, Barberton Greenstone Belt, Swaziland
Roerdink, Desiree; Mason, Paul R.D.; Whitehouse, Martin J.; Brouwer, Fraukje M. (Peer reviewed; Journal article, 2016-07)Anomalous fractionation of the minor isotopes of sulfur (Δ33S, Δ36S) in Archean pyrite is thought to reflect photochemical reactions in an anoxic atmosphere, with most samples falling along a reference array with Δ36S/Δ33S ... -
The Seven Sisters Hydrothermal System: First Record of Shallow Hybrid Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge
Marques, Ana Filipa Alfaia; Roerdink, Desiree; Baumberger, Tamara; de Ronde, Cornel; Ditchburn, Robert; Denny, Alden Ross; Thorseth, Ingunn Hindenes; Økland, Ingeborg; Lilley, Marvin D.; Whitehouse, Martin, J.; Pedersen, Rolf B. (Journal article; Peer reviewed, 2020)We document the discovery of an active, shallow, seafloor hydrothermal system (known as the Seven Sisters Vent Field) hosted in mafic volcaniclasts at a mid-ocean ridge setting. The vent field is located at the southern ...