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Coma Fosca, Poblet Monastery, Vimbodí, Conca de Barberà, Tarragona, Catalonia, Spain

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Lower Silurian (Lower Llandoverian) sedex-type deposit and isochemical metamorphism of V/Cr-rich sediments.

Metasediments are massive anorthite layers interbedded with cherts, phosphates beds, sulfide-rich black shales, massive sulfide layers and calc-silicate beds.

Ore-bearing units form belts parallel to folds direction (NW-SE axes) (Hercynian orogeny).

V and Cr-bearing silicates are common in anorthite beds.

Sulfides (pyrrhotite and chalcopyrite) are disseminated within the metasediment layers.
V-Cr oxides, rutile and ilmenite are common in sulfide-rich shales.
Hercynian deformation and regional metamorphism are responsible for remobilization and formation of sulfide veinlets (galena, sphalerite, pyrite, chalcopyrite).

Tardihercynian granitic intrusion and contact metamorphism induced recrystallization of previous mineralization: Pd-bearing löllingite is replaced by arsenopyrite. Contact metamorphism of V/Cr-rich shales results in formation of metapelic hornfels with V-rich aluminosilicates and V/Cr oxides.

Note: In 2006 the town of Vimbodí changed its name to Vimbodí i Poblet.


Mineral List



59 entries listed. 51 valid minerals.

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

C. Canet et al. (2003): The Canadian Mineralogist, 41, 581-595.

 
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