Auflistung Geochemie, Mineralogie, Petrologie nach Schlagwort "Southern Ocean"
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Dating Deep-Sea Sediments With 230Th Excess Using a Constant Rate of Supply Model
(Paleoceanography and Paleoclimatology, 2019)We present a dating method for deep-sea sediments that uses the natural radionuclide 230Th (half-life 75,380 years) in analogy to 210Pb with the constant rate of supply (CRS) model. Using an example from the western Indian ... -
Efficient Extraction of Past Seawater Pb and Nd Isotope Signatures From Southern Ocean Sediments
(Geochemistry, Geophysics, Geosystems, 2021-03-16)Radiogenic lead (Pb) and neodymium (Nd) isotope compositions extracted from authigenic phases in marine sediments are sensitive tracers to reconstruct past ocean circulation and water mass mixing. Chemical reductive leaching ... -
Radiocarbon Evidence for the Contribution of the Southern Indian Ocean to the Evolution of Atmospheric CO2 Over the Last 32,000 Years
(Paleoceanography and Paleoclimatology, 2020)It is widely assumed that the ventilation of the Southern Ocean played a crucial role in driving glacial-interglacial atmospheric CO2 levels. So far, however, ventilation records from the Indian sector of the Southern Ocean ... -
The Nitrogen Isotopic Composition of Tissue and Shell-Bound Organic Matter of Planktic Foraminifera in Southern Ocean Surface Waters
(Geochemistry, Geophysics, Geosystems, 2020)We present the first nitrogen isotope (δ15N) measurements of planktic foraminifera, paleoceanographically important zooplankton, from the nutrient-rich waters of the modern Southern Ocean. Foraminifera were collected from ...