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Bahr, André; Geppert, Philipp; Schefuß, Enno; Jaeschke, Andrea; Rethemeyer, Janet; Chiessi, Cristiano Mazur (2021): Geochemical data from sediment core M125-67-4 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.930811

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Abstract:
The data set has been obtained on gravity core M125-67-4 from off the Jequitinhonha River, East Brazil. The obtained proxies described the hydrological conditions in the river's hinterland over the past ~ 5000 years as measure of fluctuations in the South American Summer Monsoon intensity. XRF-derived K/Al ratios and mineral phases determined by XRD reflect weathering state in the hinterland; high K/Al ratio and low kaolinite contents indicate dry conditions (and vice versa for low K/Al and high kaolinite conditions). Hydrogen isotopes are interpreted to primarily reflect precipitation amount, with low values indicating more precipitation.
Keyword(s):
dD; XRD; XRF
Supplement to:
Bahr, André; Kaboth-Bahr, Stefanie; Jaeschke, Andrea; Chiessi, Cristiano Mazur; Cruz, Francisco William; Carvalho, Leila; Rethemeyer, Janet; Schefuß, Enno; Geppert, Philipp; Albuquerque, Ana Luiza Spadano; Pross, Jörg; Friedrich, Oliver (accepted): Climatic Extremes in South America During the Late Holocene Triggered by Variability of North Atlantic Overturning Circulation. Paleoceanography and Paleoclimatology
Coverage:
Latitude: -15.282800 * Longitude: -38.913300
Date/Time Start: 2016-04-03T13:34:00 * Date/Time End: 2016-04-03T13:34:00
Event(s):
M125_451-4 (M125-67-4) * Latitude: -15.282800 * Longitude: -38.913300 * Date/Time: 2016-04-03T13:34:00 * Elevation: -28.9 m * Location: South Atlantic Ocean * Campaign: M125 (SAMBA) * Basis: Meteor (1986) * Method/Device: Gravity corer (GC)
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Bahr, A; Geppert, P; Schefuß, E et al. (2021): δD on lipid plant waxes of sediment core M125-67-4. https://doi.org/10.1594/PANGAEA.930807
  2. Bahr, A; Geppert, P; Schefuß, E et al. (2021): Mineralogical composition of sediment core M125-67-4. https://doi.org/10.1594/PANGAEA.930809
  3. Bahr, A; Geppert, P; Schefuß, E et al. (2021): Elemental composition of sediment core M125-67-4. https://doi.org/10.1594/PANGAEA.930810