Lyell Collection
Journal of the Geological Society
Lyell Centre  |   Lyell Collection  |   Subscriptions   |   Geological Society  |   Email alerts  |   Online bookshop  |   Help

Keywords:
Author:
Advanced search>>
This Article
Right arrow Figures Only
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow Request Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via ISI Web of Science (11)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Musumeci, G.
Right arrow Articles by Corsi, R.
Right arrow Search for Related Content
GeoRef
Right arrow GeoRef Citation
Journal of the Geological Society; 2002; v. 159; issue.4; p. 443-456;
DOI: 10.1144/0016-764901-084
© 2002 Geological Society of London

Original Article

Alpine tectonothermal evolution of the Tuscan Metamorphic Complex in the Larderello geothermal field (northern Apennines, Italy)

Giovanni Musumeci, Luca Bocini & Renzo Corsi

Dipartimento di Scienze della Terra, Via S. Maria 53, 56126 Pisa, Italy (e-mail: gm@dst.unipi.it)

On the internal (Tyrrhenian) side of the northern Apennines, high heat flow and geothermal gradient in the Larderello geothermal field are evidence of a large-scale thermal anomaly, related to the emplacement of a large batholith of Pliocene age extending from the upper to middle crust. These intrusions relate to the Miocene to Recent northern Apennines magmatism, which developed as a result of crustal extension and upwelling of the asthenosphere at the base of the thinned crust. In the subsurface of the Larderello geothermal field, medium- and high-grade metamorphic rocks (Tuscan Metamorphic Complex) cored in several geothermal wells, have previously been considered to be Variscan basement. New structural and petrographic data on these metamorphic rocks indicate an Alpine tectonometamorphic history and provide evidence that medium- to high-grade mineral assemblages are related to Pliocene thermal metamorphism centred on intrusions at shallow depth. These data allow a new interpretation of the Tuscan Metamorphic Complex as a tectonic wedge of the Late Palaeozoic–Triassic units, and in particular highlight the considerable extent of Pliocene thermal metamorphism and hydrothermal circulation as a result of convective cooling of intrusions.


Keywords: Apennines, Pliocene, deformation, metamorphism, magmatism.




This article has been cited by other articles:


Home page
 Geological Society, London, Special PublicationsHome page
G. Vignaroli, C. Faccenna, F. Rossetti, and L. Jolivet
Insights from the Apennines metamorphic complexes and their bearing on the kinematics evolution of the orogen
Geological Society, London, Special Publications, 2009; 311: 235 - 256.
[Abstract] [Full Text] [PDF]

Home page
 Journal of the Geological SocietyHome page
G. Musumeci, F. Mazzarini, and M. Barsella
Pliocene crustal shortening on the Tyrrhenian side of the northern Apennines: evidence from the Gavorrano antiform (southern Tuscany, Italy)
Journal of the Geological Society, 2008; 165: 105 - 114.
[Abstract] [Full Text] [PDF]

Home page
 Journal of the Geological SocietyHome page
F. Rossetti, F. Balsamo, I.M. Villa, M. Bouybaouenne, C. Faccenna, and R. Funiciello
Pliocene Pleistocene HT LP metamorphism during multiple granitic intrusions in the southern branch of the Larderello geothermal field (southern Tuscany, Italy)
Journal of the Geological Society, 2008; 165: 247 - 262.
[Abstract] [Full Text] [PDF]

Home page
 Geological Society, London, Special PublicationsHome page
G. Molli
Northern Apennine-Corsica orogenic system: an updated overview
Geological Society, London, Special Publications, 2008; 298: 413 - 442.
[Abstract] [Full Text] [PDF]