Geochemical data from sediment core M125-67-4

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-...

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Bibliographic Details
Main Authors: Bahr, André, Geppert, Philipp, Schefuß, Enno, Jaeschke, Andrea, Rethemeyer, Janet, Chiessi, Cristiano Mazur
Format: Other/Unknown Material
Language:English
Published: PANGAEA 2021
Subjects:
dD
GC
Gravity corer
M125
M125_451-4
M125-67-4
Meteor (1986)
SAMBA
South Atlantic Ocean
XRD
XRF
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.930811
https://doi.org/10.1594/PANGAEA.930811
Description
Summary: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.

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