Lithospheric delamination in the core of Pangea: Sm-Nd insights from the Iberian mantle

@inproceedings{GutirrezAlonso2011LithosphericDI,
  title={Lithospheric delamination in the core of Pangea: Sm-Nd insights from the Iberian mantle},
  author={Gabriel Guti{\'e}rrez-Alonso and J. Brendan Murphy and Javier Fern{\'a}ndez-Su{\'a}rez and Arlo Brandon Weil and Maur{\'i}cio P. Franco and Juan Carlos Fern{\'a}ndez Gonzalo},
  year={2011}
}
Delamination of continental lithosphere in the core of active collisional orogens is a wellestablished process; however, evidence for its occurrence in ancient orogenic belts is less obvious. The contrasting Sm-Nd isotopic signature between pre– and post–Middle Permian mantle-derived mafi c rocks from under the Iberian Massif suggests that most, but not all, of the subcontinental lithospheric mantle (SCLM) was replaced in latest Carboniferous to Permian time. Mantle replacement happened during… CONTINUE READING

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