Title
Fe-Gabbro
Alternative Title
Gabbro
Identifier
NAO-4
Description
Traces of oceanic metamorphism in greenschist-amphibolitic facies and weak overprint in prehnite-pumpellyite facies.
Metamorphic oceanic paragenesis: dark hornblende, actinolite, chlorite, oligoclase-albite in microfractures or reaction rims on primary minerals.
Retrograde characteristics: prehnite-pumpellyite paragenesis, saussuritized plagioclase, neoformation of prehnite pumpellyite, epidote, chlorite.
Metamorphic oceanic paragenesis: dark hornblende, actinolite, chlorite, oligoclase-albite in microfractures or reaction rims on primary minerals.
Retrograde characteristics: prehnite-pumpellyite paragenesis, saussuritized plagioclase, neoformation of prehnite pumpellyite, epidote, chlorite.
Date
no date
Contributor
Western Minerals Inc.
Spatial Coverage
M. Capra, Italy
Temporal Coverage
Cretaceous-Eocene
Accrual Method
Purchased from Western Minerals Inc.
Unit
Ophiolite
Number of Thin Sections
1