Isotopic and Geochemical Investigation of the Chilwa Island Carbonatite Complex , Malawi : Evidence for a Depleted Mantle Source Region , Liquid Immiscibility , and Open-System Behaviour

@inproceedings{2005IsotopicAG,
  title={Isotopic and Geochemical Investigation of the Chilwa Island Carbonatite Complex , Malawi : Evidence for a Depleted Mantle Source Region , Liquid Immiscibility , and Open-System Behaviour},
  author={},
  year={2005}
}
  • Published 2005
Initial Nd, Pb, and Sr isotopic data from carbonatites and associated intrusive silica-undersaturated rocks from the early Jurassic, Chilwa Island complex, located in southern Malawi, central Africa, suggest melt derivation from a Rb/Srand Nd/Sm-depleted but Th/Pband U/Pb-enriched mantle source. Initial Nd/*Nd (051265-0-51270) isotope ratios from the Chilwa Island carbonatites are relatively constant, but their initial Sr/Sr (070319-070361) ratios are variable. The b^O^oy, (9-53—1415%o) and… CONTINUE READING