On the origin of urtites of the Khibiny alkaline massif
Abstract
The urtites in the Khibiny massif are part of a complex ijolite-urtite complex of rocks occurring among nepheline syenites in the form of a horseshoe-shaped body gently dipping to the center of the massif. Within this body, trachytoid ijolites are the most widespread. The so-called fine-grained ijolites are very limitedly distributed here. According to the data of geological mapping of the ijolite-urtite band, urtites lie among trachytoid ijolites and are exposed on the surface in the hanging wall or central part of the horseshoe-shaped body.
Область исследования:
(Archived) Without section
Funding:
None
References
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