Paper: In-situ assimilation of mantle minerals by kimberlitic magmas – Direct evidence from a garnet wehrlite xenolith entrained in the Bultfontein kimberlite (Kimberley, South Africa)

In-situ assimilation of mantle minerals by kimberlitic magmas — Direct evidence from a garnet wehrlite xenolith entrained in the Bultfontein kimberlite (Kimberley, South Africa)

a KiDs (Kimberlites and Diamonds), School of Earth Sciences, The University of Melbourne, Parkville, 3010, Victoria, Australia
b ARC Centre of Excellence for Core to Crust Fluid Systems and GEMOC, Department of Earth and Planetary Sciences, Macquarie University, North Ryde, 2019, NSW, Australia
c School of Physical Sciences, University of Tasmania, Hobart, 7001, Tasmania, Australia
d Melbourne Isotope Geoscience, School of Earth Sciences, The University of Melbourne, Parkville, 3010, Victoria, Australia
e Central Science Laboratory, University of Tasmania, Hobart, 7001, Tasmania, Australia

Highlights

•Mantle wehrlite xenolith from the Bultfontein kimberlite (Kimberley, RSA)
•Evidence of carbonate metasomatism coeval with kimberlite magmatism
•The metasomatic agent was genetically related to the host kimberlite.
•In-situ assimilation of mantle silicate minerals by kimberlite magmas
•Assimilation of mantle minerals increases Si contents of kimberlite magmas.

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