Thesis Collection
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Browsing by Subject "Zircon"
Now showing items 1-5 of 5
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Age and setting of the Upper Neoproterozoic Narcea Antiform volcanic rocks (NW Iberia)
(Sociedad Geológica de España, 2003)U-Pb dating of zircons from ryolites intercalated within the Narcea Antiform Neoproterozoic rocks was performed by laser ablation ICP-MS). The age of the ryolite is 559±3 Ma which allows the separation of two different ... -
Alteración hidrotermal asociada a los yacimientos de sulfuros masivos de la Faja Pirítica Suribérica
Toscano Macías, Manuel
(Universidad de Huelva, 2016)
Los depósitos de sulfuros masivos de Masa Valverde y Aznalcóllar-Los Frailes se localizan en el sector SE de la Faja Pirítica Suribérica (FPS). Estos depósitos se encuentran encajados en una secuencia vulcanosedimentaria ... -
Can the zircon origin be established from geochemical data alone? Insights from chlorite schists in the Ronda peridotites
(Sociedad Geológica de España, 2020)This study deals with the scarce chlorite schists scattered through the Ronda peridotites (Betic Cordilleras, Spain) related to the intrusion of granite dykes. Chlorite schists field data and the petrography, geochemistry ... -
First shrimp-ages on pyroxenites, eclogites and granites of the Ronda complex and its country-rocks
(Sociedad Geológica de España, 1996)U-Pb shrimp dating of magmatic and metamorphic domains of zircons from various rocks of the Ronda Peridotites (Betic Cordilleras, SE Spain) and their country rocks gave the following results: An extensional stage at ca 780 ... -
Geocronología U/Pb del volcanismo ácido y granitoides de la Faja Pirítica Ibérica (Zona Surportuguesa)
(Sociedad Geológica de España, 2002)Three samples have been analyzed, two of them belong to the volcanic ones from the IPB and a third to the rocks plutonics of the BSN. The age belonging to the granitoid of Campofrio is of 354,4 +5/-4 m.y. The ages obtained ...
