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Nusfjord, Flakstadøya Island, Flakstad, Lofoten, Nordland, Norway
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Unique locality of Cl-bearing minerals. Three 0.3 - 3 m thick shear zones occur in a gabbro-anorthosite.
Cl-rich amphibole, with garnet, plagioclase and Ba-, Ti-, Cl-rich biotite in shear zone in 1.8 Gy old noritic granulites.
The Cl-rich amphibole belongs to an amphibolite facies assemblage that replaced the granulite facies during shear deformation associated with the infiltration of a Cl-/Ba-rich fluid.

Mineral List

Albite
var: Andesine

var: Oligoclase
Amphibole Supergroup
'Apatite'
'Biotite'
'Clinopyroxene Subgroup'
Edenite
Epidote
'Ferroan pargasite'
Ferro-pargasite
'Garnet'
Halite
Ilmenite
Magnetite
Marialite
'Orthopyroxene Subgroup'
'Potassic-chloro-sadanagaite'
'Potassic-ferro-chloro-sadanagaite'
Quartz
'Scapolite'
Sylvite


21 entries listed. 10 valid minerals. 1 erroneous literature entry.

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References

- Kullerud, K. (1996): Chlorine-rich amphiboles: interplay between amphibole composition and an evolving fluid. European Journal of Mineralogy. 8, 355-370
- Kullerud, K. & Erambert, M. (1999): Cl-scapolite, Cl-amphibole and plagioclase equilibria in ductile shear zones at Nusfjord, Lofoten, Norway: Implications for fluid compositional evolution during fluid mineral-interaction in the deep crust. Geochimica and Cosmochimica Acta. 63: 3829-3844

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