Browsing Boudreau, Bernard P. by Title
Now showing items 1-9 of 9
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Bioturbation and porosity gradients
Ubiquitous porosity gradients have a potentially important effect on the mixing of particle-bound tracers, such as Pb-210. Mass-depth coordinates cannot be used to deal with these effects if values of the traditional mixing ... -
Current CaCO3 dissolution at the seafloor caused by anthropogenic CO2
Oceanic uptake of anthropogenic CO2 leads to decreased pH, carbonate ion concentration, and saturation state with respect to CaCO3 minerals, causing increased dissolution of these minerals at the deep seafloor. This ... -
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Quantifying particle dispersal in aquatic sediments at short time scales: model selection
In a pulse-tracer experiment, a layer of tracer particles is added to the sediment-water interface, and the down-mixing of these particles is followed over a short time scale. Here, we compared different models (biodiffusion, ... -
Rate of growth of isolated bubbles in sediments with a diagenetic source of methane
Observation of bubbles in estuarine and coastal sediments indicates that bubbles at or below 10 cm depth grow on seasonal time scales (May-October). In order to determine the controls on this growth rate, we have constructed ...