Tectonically emplaced mantle rocks, such as ophiolites, abyssal peridotites, and orogenic peridotite massifs, provide a principle constraint on the composition of and processes in the Earth’s upper mantle (Bodinier and Godard 2003). In the past, these ‘mantle tectonites’ have sometimes received different names because their history and origin has been unclear. Mantle tectonites are now understood to reflect a range of geologic environments regarding their emplacement and their origin (e.g., Dilek and Furnes 2014). The advantage of these rocks compared to mantle xenoliths is the large-scale exposure of textural and compositional relations between different rock types that...
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