Lateral extrusion of a thermally weakened pluton overburden (Campiglia Marittima, Tuscany)

Lateral extrusion of a thermally weakened pluton overburden (Campiglia Marittima, Tuscany) The ascent and emplacement of magmas in the upper crust modify the local pre-existing thermal and rheological settings. Such changes have important effects in producing anomalous structures, mass extrusion, rock fracturing, and in some conditions, hydrothermal mineralizations. In the Campiglia Marittima area, detailed field mapping led to the reconstruction of a local deformation history that overlaps, chronologically and spatially, with regional extension. This local deformation was triggered at the Miocene–Pliocene boundary by the intrusion of a monzogranitic pluton beneath a carbonate sedimentary sequence. The emplacement of the pluton produced a perturbation in the rheological behaviour of the carbonate host rocks, producing transient ductile conditions in the very shallow crust. The carbonate rocks were thermally weakened and flowed laterally, accumulating downslope of the pluton roof, mainly toward the east. As the thermal anomaly was decaying, the brittle–ductile boundary moved progressively back towards the pluton, and large tension gash-shaped volumes of fractured marble were generated. These fractured volumes were exploited by rising hydrothermal fluids generating sigmoidal skarn bodies and ore shoots. This work presents the Campiglia Marittima case study as a prime example of structural interference between regional extensional structures and local, lateral mass extrusion in a transient ductile rheological regime triggered by pluton emplacement. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Earth Sciences Springer Journals

Lateral extrusion of a thermally weakened pluton overburden (Campiglia Marittima, Tuscany)

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Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer-Verlag GmbH Germany
Subject
Earth Sciences; Geology; Geophysics/Geodesy; Sedimentology; Structural Geology; Mineral Resources; Geochemistry
ISSN
1437-3254
eISSN
1437-3262
D.O.I.
10.1007/s00531-017-1539-9
Publisher site
See Article on Publisher Site

Abstract

The ascent and emplacement of magmas in the upper crust modify the local pre-existing thermal and rheological settings. Such changes have important effects in producing anomalous structures, mass extrusion, rock fracturing, and in some conditions, hydrothermal mineralizations. In the Campiglia Marittima area, detailed field mapping led to the reconstruction of a local deformation history that overlaps, chronologically and spatially, with regional extension. This local deformation was triggered at the Miocene–Pliocene boundary by the intrusion of a monzogranitic pluton beneath a carbonate sedimentary sequence. The emplacement of the pluton produced a perturbation in the rheological behaviour of the carbonate host rocks, producing transient ductile conditions in the very shallow crust. The carbonate rocks were thermally weakened and flowed laterally, accumulating downslope of the pluton roof, mainly toward the east. As the thermal anomaly was decaying, the brittle–ductile boundary moved progressively back towards the pluton, and large tension gash-shaped volumes of fractured marble were generated. These fractured volumes were exploited by rising hydrothermal fluids generating sigmoidal skarn bodies and ore shoots. This work presents the Campiglia Marittima case study as a prime example of structural interference between regional extensional structures and local, lateral mass extrusion in a transient ductile rheological regime triggered by pluton emplacement.

Journal

International Journal of Earth Sciences – Springer Journals

Published: Oct 3, 2017

References

  • Strike-slip faulting and pluton emplacement in Southern Tuscany: the Campiglia Marittima case
    Acocella, V; Rossetti, F; Faccenna, C; Funiciello, R; Lazzarotto, A
  • Contributo alla conoscenza chimico-petrografica e magmatologica delle rocce intrusive, vulcaniche e filoniane del Campigliese (Toscana)
    Barberi, F; Innocenti, F; Mazzuoli, R
  • Geological features of Larderello-Travale and Mt. Amiata geothermal areas (southern Tuscany, Italy)
    Batini, F; Brogi, A; Lazzarotto, A; Liotta, D; Pandeli, E
  • Determinazione con il metodo K/Ar delle età delle rocce magmatiche della Toscana
    Borsi, S; Ferrara, G; Tongiorgi, E
  • Influence of syn-sedimentary faults on orogenic structures in a collisional belt: Insights from the inner zone of the Northern Apennines (Italy)
    Brogi, A
  • Upper crust “boudinage” during post-collisional Miocene extension in Tuscany: insights from the southern part of the Larderello geothermal area (Northern Apennines, Italy)
    Brogi, A; Cerboneschi, A
  • Tectonic control on hydrothermal circulation and fluid evolution in the Pietratonda–Poggio Peloso (southern Tuscany, Italy) carbonate-hosted Sb-mineralization
    Brogi, A; Fulignati, P
  • Highly extended terrains, lateral segmetation of the substratum and basin development: the middle-late Miocene Radicondoli Basin (inner northern Apennines, Italy)
    Brogi, A; Liotta, D
  • Geometry, stacking pattern and deformation timing of imbricate thrust-sheets within the Tuscan Nappe in the Travale area (Larderello geothermal area, Italy)
    Brogi, A; Cernoboneschi, A; Lazzarotto, A
  • Transtensional shear zones controlling volcanic eruptions: the Middle Pleistocene Mt Amiata volcano (inner Northern Apennines, Italy)
    Brogi, A; Liotta, D; Meccheri, M; Fabbrini, L
  • Sb–Hg ore deposit distribution controlled by brittle structures: The case of the Selvena mining district (Monte Amiata, Tuscany, Italy)
    Brogi, A; Fabbrini, L; Liotta, D
  • Late Quaternay tectonics in the inner Northern Apennines (Siena Basin, southern Tuscany, Italy) and their seismotectonic implication
    Brogi, A; Capezzuoli, E; Martini, I; Picozzi, M; Sandrelli, F
  • Post-emplacement thermo-rheological history of a granite intrusion and surrounding rocks: the Monte Capanne pluton, Elba Island, Italy
    Caggianelli, A; Ranalli, G; Lavecchia, A; Liotta, D; Dini, A
  • The crystallisation sequence of the Campiglia Marittima skarn
    Capitani, GC; Mellini, M
  • Tertiary extensional tectonics in Tuscany (Northern Apennines, Italy)
    Carmignani, L; Decandia, FA; Fantozzi, PL; Lazzarotto, A; Liotta, D; Meccheri, M
  • Carta Geologica della Regione Toscana alla scala 1:10000, Sezione 305080, Sassetta
    Cerrina Feroni, A
  • Carta Geologica della Regione Toscana alla scala 1:10000, Sezione 305120, Campiglia Marittima
    Cerrina Feroni, A
  • Sulfur isotope study of the skarn-(Cu–Pb–Zn) sulfide deposit of Valle del Temperino, Campiglia Marittima, Tuscany, Italy
    Corsini, F; Cortecci, G; Leone, G; Tanelli, G
  • Valorizzazione del geosito “Sezione Coquand”, Miniera del Temperino (Parco Archeominerario di San Silvestro Campiglia)
    Mommio, A; Iaccarino, S; Vezzoni, S; Dini, A; Rocchi, S; Brocchini, D; Guideri, S; Sbrilli, L
  • Effect of water on the strength and microstructure of Carrara Marble axially compressed at high temperature
    Bresser, JHP; Urai, JL; Olgaard, DL
  • Structural feature of Southern Tuscany, Italy
    Decandia, FA; Lazzarotto, A; Liotta, D
  • Rheology of dolomite: large strain torsion experiments and natural examples
    Delle Piane, C; Burlini, L; Kunze, K; Brack, P; Burg, JP
  • Multiple hydro-fracturing by boron-rich fluids in the Late Miocene contact aureole of eastern Elba Island (Tuscany, Italy)
    Dini, A; Mazzarini, F; Musumeci, G; Rocchi, S
  • Magma emplacement in a transfer zone: the Miocene mafic Orano dyke swarm of Elba Island, Tuscany, Italy
    Dini, A; Westerman, DS; Innocenti, F; Rocchi, S
  • Synkinematic skarns and fluid drainage along detachments: The West Cycladic Detachment System on Serifos Island (Cyclades, Greece) and its related mineralization
    Ducoux, M; Branquet, Y; Jolivet, L; Arbaret, L; Grasemann, B; Rabillard, A; Gumiaux, C; Drufin, S
  • Geological evolution and metamorphic petrology of the basal sequences of eastern Elba (complex II)
    Duranti, S; Palmeri, R; Pertusati, PC; Ricci, CA
  • Isotope and chemical microsampling: constraints on the history of an S-type rhyolite, San Vincenzo, Tuscany, Italy
    Feldstein, SN; Halliday, AN; Davies, GR; Hall, CM
  • Petrology and isotope-geochemistry of San Vincenzo rhyolites (Tuscany, Italy)
    Ferrara, G; Petrini, R; Serri, G; Tonarini, S
  • Dilatancy during rock deformation at high temperatures and pressures
    Fischer, GJ; Paterson, MS
  • Petrography and chemistry of the buried Pliocene Castel di Pietra pluton (Southern Tuscany, Italy)
    Franceschini, F; Innocenti, F; Marsi, A; Tamponi, M; Serri, G
  • Geologia dei monti di Campiglia Marittima (Livorno)
    Giannini, E
  • Nuove conoscenze sul sistema idrotermale di Campiglia Marittima (Livorno)
    Grassi, S; Squarci, P; Celati, R; Calore, C; Perusini, P; Taffi, L
  • Catastrophic emplacement of the gigantic Markagunt gravity slide, southwest Utah (USA): implications for hazards associated with sector collapse of volcanic fields
    Hacker, DB; Biek, RF; Rowley, PD
  • Genesis and classification of the rocks of the Tuscan Magmatic Province: thirty years after Marinelli’s model
    Innocenti, F; Serri, G; Ferrara, G; Manetti, P; Tonarini, S
  • Thermometamorphism in the Campiglia Marittima aureole (Tuscany, Italy)
    Leoni, L; Tamponi, M
  • Coexistece of low-angle normal and high-angle strike-to oblique-slip faults during Late Miocene mineralization in eastern Elba Island (Italy)
    Liotta, D; Brogi, A; Meccheri, M; Dini, A; Bianco, C; Ruggieri, G
  • Fluid-enhanced low-temperature plasticity of calcite marble: microstructures and mechanisms
    Liu, J; Walter, JM; Weber, K
  • Vein development during folding in the upper brittle crust: The case of tourmaline-rich veins of eastern Elba Island, northern Tyrrhenian Sea, Italy
    Mazzarini, F; Musumeci, G; Cruden, AR
  • Experimental modelling of thin-skinned shortening around magmatic intrusions
    Merle, O; Vendeville, B
  • Moho depth and Vp/Vs ratio in peninsular Italy from teleseismic receiver functions
    Piana Agostinetti, N; Amato, A
  • From orogenic hinterlands to Mediterranean-style back-arc basins: a comparative analysis
    Platt, JP
  • Unravelling the complex interaction between mantle and crustal magmas encoded in the lavas of San Vincenzo (Tuscany, Italy). Part I: petrography and thermobarometry
    Ridolfi, F; Braga, R; Cesare, B; Renzulli, A; Perugini, D; Moro, S
  • Syn-versus post-orogenic extension: the case study of Giglio Island (Northern Tyrrhenian Sea, Italy)
    Rossetti, F; Faccenna, C; Jolivet, L; Funiciello, R; Tecce, F; Brunet, C
  • Pluton emplacement in the Northern Tyrrhenian area, Italy
    Rossetti, F; Faccenna, C; Acocella, V; Funiciello, R; Jolivet, L; Salvini, F
  • Neogene strike-slip faulting and pluton emplacement in the colline metallifere region (Southern Tuscany, Italy): the Gavorrano-Capanne Vecchie area
    Rossetti, F; Faccenna, C; Funiciello, R; Pascucci, V; Pietrini, M; Sandrelli, F
  • Patterns of fluid flow in the contact aureole of the Late Miocene Monte Capanne pluton (Elba Island, Italy): the role of structures and rheology
    Rossetti, F; Tecce, F; Billi, A; Brilli, M
  • Pliocene-Pleistocene HT-LP metamorphism during multiple granitic intrusions in the southern branch of the Larderello geothermal field (southern Tuscany, Italy)
    Rossetti, F; Balsamo, F; Villa, IM; Bouybaouenne, M; Faccenna, C; Funiciello, R
  • Geochemical and petrological evidence of the subduction of delaminated Adriatic continental lithosphere in the genesis of the Neogene-Quaternary magmatism of central Italy
    Serri, G; Innocenti, F; Manetti, P
  • Nuovi studi sul giacimento di stagno del Campigliese. Atti dell’Accademica Nazionale dei Lincei, Rendiconti classe Scienze Fisiche
    Stella, A
  • La miniera di stagno di Monte Valerio e i giacimenti del Campigliese nel quadro della catena metallifera toscana
    Stella, A
  • Mineralizzazioni metallifere e minerogenesi della Toscana
    Tanelli, G
  • L’Elba orientale e la sua tettonica di scivolamento per gravità
    Trevisan, L
  • Reverse telescoping in a distal skarn system (Campiglia Marittima, Italy)
    Vezzoni, S; Dini, A; Rocchi, S
  • Formation of segmented normal faults: a 3-D perspective
    Walsh, JJ; Bailey, WR; Childs, C; Nicol, A; Bonson, CG
  • Rise and fall of a nested Christmas-tree laccolith complex, Elba Island, Italy
    Westerman, DS; Dini, A; Innocenti, F; Rocchi, S
  • Ptygmatic Structures and their Formation
    Wilson, G

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