Stable isotope geochemistry of magnesite from Holocene salt lake deposits, Taoudenni, Mali Vrije Universiteit Brussel
Stable isotope data (Delta18O, Delta13C) were obtained for magnesite (MgCO3) from Holocene salt lake deposits of the Taoudenni-Agorgott basin, Mali, in which it is the only carbonate mineral present. The deposits have a high glauberite content (Na2Ca(SO4)2), representing a type of continental evaporite formation that is commonly magnesite-bearing. Samples from seven different levels in a 5?m long sequence were analysed. ?18OV-PDB values are ...