Journal of Petrology · 2000 · 199 citations · 52 references
Natural SciencesEarth SciencesGeologyGeochemistryMineralogyTectonicsMagma EvolutionMantle PetrologyMetamorphic MineralsMetamorphic PetrologyMetamorphic ReactionsMetamorphic RocksContinental Crust EvolutionCrust-mantle InteractionExhumation Of High-pressure Metamorphic RocksExhumation ProcessesGabbroic AccretionGarnet MineralogyMagmatic GeochemistryRetrograde Metamorphism
>03 GPa and cooling to >500C, consistent with the pre-The Braccia gabbro of Val Malenco, Italian Alps, intruded 275 My servation of the olivine + tremolite + talc assemblage in ultramafic ago during Early Permian lithospheric extension. The intrusion rocks. Estimated uplift rates of 1-2 mm/year indicate a 15-30 My took place along the crust-mantle transition zone and caused exhumation related to Jurassic rifting. The two-stage retrograde granulite metamorphism of lower-crustal and upper-mantle rocks.
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