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Condiciones metamórficas de las metabasitas del Roc de Frausa (Pirineos Orientales)

Authors: Navidad, M.; Liesa, Montserrat; Carreras, Jordi;

Condiciones metamórficas de las metabasitas del Roc de Frausa (Pirineos Orientales)

Abstract

An approach to the metamorphic conditions based in mineral paragenesis of metabasites from different areas of Roc de Frausa Massif has been made. Regional peak metamorphism is showed by the metamorphic paragenesis in granulites conditions from Les Hies sector (Clpx + PI + Amph + llm); P-T conditions during Hercynian metamorphism are 750 ± 20 °C and 4.5 ± 0.5 Kb (18 -20 km) witch a geotermal gradient account betwen 39 - 42°C / km. A subsecuent retrograde metamorphism appear in low grade conditions 3.5 ± 0.5 Kb and 480 * 20C (14-16 km ) wich a geotermal gradient betwen 31 -34 °C / km. This retrograde metamorphismis showed in the Montalba sector by Gr - Amph - PI- llm paragenesis; their metamorphic conditions are 510 i 20 °C and 4 Kb ( 16 Km ) witch a geotermal gradient betwen 30 ± 2°C / km

Country
Spain
Related Organizations
Keywords

Metabasites, Thermobarometers, Gradients, Amphiboles, Garnets

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green