Timescale of a magmatic-hydrothermal system revealed by ⁴⁰Ar-³⁹Ar geochronology: the Mio-Pliocene Campiglia Marittima system (Tuscany, Italy).

ABSTRACT: Petrology and timing of magmatic-hydrothermal systems and the linkage between plutonic and volcanic domains are central topics in geosciences, because of broad implications for natural hazards and exploitation of natural resources. We investigated by the ⁴⁰Ar-³⁹Ar method the timescale of a well-characterized natural example, the Mio-Pliocene Campiglia Marittima magmatic-hydrothermal system (Tuscany, Italy). ⁴⁰Ar-³⁹Ar data from pristine and homogeneous trioctahedral micas and sanidine from the plutonic-hydrothermal-subvolcanic-volcanic sequence (from the Botro ai Marmi Granite to the San Vincenzo Rhyolite) record crystallization ages and define a temporal sequence lasting 973 ± 43 ka, starting from 5.409 ± 0.043 Ma. K-feldspar from mafic and felsi

SUBMITTER: Di Vincenzo G 

PROVIDER: S-EPMC9065031 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature