Fe-Gabbro
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.
no date
Western Minerals Inc.
NAO-4
Serpentinized lherzolite
Partially serpentinized tectonic lherzolite. Occasionally newly formed diopside may be noted.
no date
Western Minerals Inc.
NAO-3
Olivine Gabbro
Partially serpentinized Olivine Gabbro.
no date
Western Minerals, Inc.
NAO-1