Search results for "Telica"
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3 He/4He Signature of Magmatic Fluids from Telica (Nicaragua) and Baru (Panama) Volcanoes, Central American Volcanic Arc
2022
Constraining the magmatic 3He/4He signature of fluids degassed from a magmatic system is crucial for making inferences on its mantle source. This is especially important in arc volcanism, where variations in the composition of the wedge potentially induced by slab sediment fluids must be distinguished from the effects of magma differentiation, degassing, and crustal contamination. The study of fluid inclusions (FIs) trapped in minerals of volcanic rocks is becoming an increasingly used methodology in geochemical studies that integrates the classical study of volcanic and geothermal fluids. Here, we report on the first noble gas (He, Ne, Ar) concentrations and isotopic ratios of FI in olivin…
Recensione a Francesco Robortello. Réception des Anciens et construction de la modernité, sous la direction de M. Bouquet, S. Cappello, C. Lesage et …
2021
Recensione a Francesco Robortello. Réception des Anciens et construction de la modernité, sous la direction de M. Bouquet, S. Cappello, C. Lesage et M. Magnien, Rennes, Presses Universitaires de Rennes, 2020, pp. 508. Il volume accoglie gli atti del Colloquio Internazionale dedicato all’umanista friulano Francesco Robortello (1516-1567), svoltosi a Rennes fra il 6 e l’8 ottobre 2016. Apparso nel 2020, a quattro anni di distanza dalla sua celebrazione, il volume comprende complessivamente 23 interventi di studiosi francesi, italiani, tedeschi e statunitensi – tutti pubblicati in lingua francese, a eccezione di cinque in italiano. Review to Francesco Robortello. Réception des Anciens et const…
Incontinenza, scienza e phrònesis
2018
Geochemistry and volatile content of magmas feeding explosive eruptions at Telica volcano (Nicaragua)
2017
Telica volcano, in north-west Nicaragua, is a young stratovolcano of intermediate magma composition producing frequent Vulcanian to phreatic explosive eruptions. The Telica stratigraphic record also includes examples of (pre)historic sub-Plinian activity. To refine our knowledge of this very active volcano, weanalyzedmajor element composition and volatile content of melt inclusions fromsomestratigraphically significant Telica tephra deposits. These include: (1) the Scoria Telica Superior (STS) deposit (2000 to 200 years Before Present; Volcanic Explosive Index, VEI, of 2–3) and (2) pyroclasts from the post-1970s eruptive cycle (1982; 2011). Based on measurements with nanoscale secondary ion…