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Abstract

In the Late Miocene – Recent lavas of Saray (East coast of Lake Urmieh), Qorveh (Southeast Kurdestan), Damavand (Northeast of Tehran ) and Qaleh-Hassanali (Southeast of Kerman ) have xenolithe or bombs with the following composition:

Phlogopite + Clinopyroxene ± Olivine ± Apatite ± Magnetite ± Sphene
These xenolithes show no similarity and relation with phenocristal assemblage and host rock compositions both from a chemical and mineralogical perspective. The irregular shape of the xenolithe and their distinct sharp contact with the host rock indicates that these xenolithes and ultramafic bombs are not cumulate, rather, they are fragments of metasomatized mantle, which have been carried to the surface by magmas.

Keywords