New Peak Temperature Constraints using RSCM Geothermometry on the Hajjar Zn-Pb-Cu Mine and its Surroundings (Guemassa Massif, Morocco)

Sylvain Delchini 1, * Abdeltif Lahfid 1 Claire Ramboz 2 Yannick Branquet 2 Lhou Maacha 3
* Auteur correspondant
1 BRGM - Bureau de Recherches Géologiques et Minières (BRGM)
2 ISTO - Institut des Sciences de la Terre d'Orléans - UMR7327
3 Managem
Abstract : This study aims at precising the thermal history of the Guemassa massif and that of the Hajjar polymetallic deposit, by using a recently-developed method: the Raman Spectroscopy of Carbonaceous Material (e.g. Beyssac et al 2002; Lahfid et al 2010). The Guemassa massif belongs to the Moroccan Meseta domain and is mainly composed of Palaeozoic rocks folded during the Hercynian orogeny. This area underwent tectonic, metamorphic and hydrothermal events that explain the presence of several base metal deposits like Hajjar. The application of Raman Spectroscopy of Carbonaceous Material geothermometry (RSCM) has revealed new temperature peaks superior to 500°C that were unrevealed by other methods (fluid inclusion, chlorite thermometry). This new data set will allow a better understanding of the thermal history and of the mineralization processes in the Guemassa massif.
Keywords : RSCM geothermometry peak temperature SEDEX-VMS type base metal Hajjar deposit polythermal history Hercynian massif Moroccan Meseta
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Poster
13th SGA Biennial Meeting, Aug 2015, Nancy, France. 2015
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Dernière modification le : mardi 29 mai 2018 - 12:50:59
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Sylvain Delchini, Abdeltif Lahfid, Claire Ramboz, Yannick Branquet, Lhou Maacha. New Peak Temperature Constraints using RSCM Geothermometry on the Hajjar Zn-Pb-Cu Mine and its Surroundings (Guemassa Massif, Morocco). 13th SGA Biennial Meeting, Aug 2015, Nancy, France. 2015. 〈hal-01163096〉

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