Citation:

PANGAEA.942656

Name: Organic geochemistry, XRF analysis and foraminiferal geochemistry of Sediment Core M125-35-3
Published: 2022-03-24
License: https://creativecommons.org/licenses/by/4.0/
Keywords: deglacial variability; Foraminiferal geochemistry; land-ocean teleconnection; Organic Geochemistry; South American Monsoon System; South Atlantic Convergence Zone; XRF data

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Published: 2022-03-24 • DOI registered: 2022-07-13

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Abstract:

This dataset provides deglacial climatic records (~3-19 ka) based on organic geochemistry, XRF-derived elemental bulk analysis and foraminiferal geochemistry on marine sediment core M125-35-3. Gravity Core M125-35 is located on the Brazilian Margin off southeastern Brazil in the western tropical South Atlantic and was retrieved during research cruise M125 (RV METEOR) in 2016 The dataset comprises mass accumulation rates (MAR) of branched glycerol dialkyl glycerol tetraethers (brGDGT) and the specific isoprenoidal GDGT from marine Thaumarcharchaeota crenarchaeol. Additionally, the BIT index of Core M125-35-3 was calculated from GDGTs. Further, this dataset contains MARs from biogenic lipid components alkenones and n-alkanes and the carbon preference index (CPI). XRF derfived data comprise Elemental ratios of K/Al and Si/Al and calculated MARs of Al, Ti, Fe, K and Ca and foraminiferal derived stable δ13C measurements were performed on the tropical species G. ruber (p).

Keyword(s):

deglacial variability; Foraminiferal geochemistry; land-ocean teleconnection; Organic Geochemistry; South American Monsoon System; South Atlantic Convergence Zone; XRF data

Supplement to:

Meier, Karl J F; Jaeschke, Andrea; Rethemeyer, Janet; Chiessi, Cristiano Mazur; Albuquerque, Ana Luiza Spadano; Wall, Vincent; Friedrich, Oliver; Bahr, André (2022): Coupled oceanic and atmospheric controls of deglacial southeastern South America precipitation and western South Atlantic productivity. Frontiers in Marine Science, https://doi.org/10.3389/fmars.2022.878116

Coverage:

Latitude: -21.893500 * Longitude: -40.004700

Date/Time Start: 2016-03-27T19:32:00 * Date/Time End: 2016-03-27T19:32:00

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

3 datasets

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Datasets listed in this bundled publication

Meier, KJF; Jaeschke, A; Rethemeyer, J et al. (2022): Foraminiferal geochemistry of sediment core M125-35-3. https://doi.org/10.1594/PANGAEA.942639
Meier, KJF; Jaeschke, A; Rethemeyer, J et al. (2022): Organic geochemistry of sediment core M125-35-3. https://doi.org/10.1594/PANGAEA.942652
Meier, KJF; Jaeschke, A; Rethemeyer, J et al. (2022): XRF analysis of sediment core M125-35-3. https://doi.org/10.1594/PANGAEA.942653