GEOCHEMICAL INVESTIGATION OF NODULAR CHROMITES IN THE FORUMAD OPHIOLITE, NE OF IRAN

Document Type: Regular Paper

Authors

1 School of Earth Sciences, Damghan University of Basic Sciences, Damghan, I. R. Iran

2 Faculty of Earth Sciences, Shahid Beheshti University, Tehran, I. R. Iran

Abstract

The Forumad ophiolite in the northwestern part of the Sabzevar region has embraced the large
depleted harzburgites and dunitic bodies associated with podiform chromitites. In some deposits, chromite
grains have segregated as nodules. The stretched shape along with high Cr2O3 and TiO2 contents are the
characteristics of the nodules. Compared to the other Tethyan nodular chromites, the Forumad nodular
chromites show high Cr content. The nodules formation seems to be the result of turbulent picritic magma
flows accompanied by the water rich fluids.

Keywords