Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11131
DC Field | Value | Language |
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dc.date.accessioned | 2018-03-12T11:04:08Z | en |
dc.date.available | 2018-03-12T11:04:08Z | en |
dc.date.issued | 2017-05 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11131 | en |
dc.description.abstract | The ophiolite sequences in the western Elba Island are classically interpreted as a well-exposed ocean-floor section emplaced during the Apennines orogeny at the top of the tectonic nappe-stack. Stratigraphic, petrological and geochemical features indicate that these ophiolite sequences are remnants of slow-ultraslow spreading oceanic lithosphere analogous to the present-day Mid-Atlantic Ridge and Southwest Indian Ridge. Within the oceanward section of Tethyan lithosphere exposed in the Elba Island,we investigated for the first time a 10s of meters-thick structure, the Cotoncello Shear Zone (CSZ), that records high-temperature ductile deformation. We used a multidisciplinary approach to document the tectono-metamorphic evolution of the shear zone and its role during spreading of the western Tethys. In addition, we used zircon U–Pb ages to date formation of the gabbroic lower crust in this sector of the Apennines. Our results indicate that the CSZ rooted below the brittle–ductile transition at temperature above 800 °C. A high-temperature ductile fabricwas overprinted by fabrics recorded during progressive exhumation up to shallower levers under temperature b500 °C.Wesuggest that the CSZ may represent the deep root of a detachment fault that accomplished exhumation of an ancient oceanic core complex (OCC) in between two stages of magmatic accretion.We suggest that the CSZ represents an excellent on-land example enabling to assess relationships between magmatism and deformation when extensional oceanic detachments are at work. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Lithos | en |
dc.relation.ispartofseries | /278-281 (2017) | en |
dc.subject | Oceanic core complexes Slow-spreading ridge Brittle–plastic transition Northern Apennines ophiolites Elba Island | en |
dc.title | The Cotoncello Shear Zone (Elba Island, Italy): The deep root of a fossil oceanic detachment fault in the Ligurian ophiolites | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 445–463 | en |
dc.identifier.URL | https://www.sciencedirect.com/science/article/pii/S0024493717300713?via%3Dihub | en |
dc.subject.INGV | Oceanic shear zone recording an ancient oceanic core complex | en |
dc.identifier.doi | 10.1016/j.lithos.2017.02.015 | en |
dc.description.obiettivoSpecifico | 7T. Struttura della Terra e geodinamica | en |
dc.description.journalType | JCR Journal | en |
dc.contributor.author | Frassi, Chiara | en |
dc.contributor.author | Musumeci, Giovanni | en |
dc.contributor.author | Zucali, Michele | en |
dc.contributor.author | Mazzarini, Francesco | en |
dc.contributor.author | Rebay, Gisella | en |
dc.contributor.author | Langone, Antonio | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria, 53, 56126 Pisa, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Mangiagalli, 34, 20133 Milano, Italy | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | en |
dc.contributor.department | Dipartimento di Scienze della Terra e dell'Ambiente, Università degli studi di Pavia, Via Ferrata, 1, Pavia, Italy | en |
dc.contributor.department | Istituto di Geoscienze e Georisorse, CNR, Via U.O.S. of Pavia, via Ferrata, 1, Pavia, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria, 53, 56126 Pisa, Italy | - |
crisitem.author.dept | Università di Pisa | - |
crisitem.author.dept | Dipartimento di Scienze della Terra, Università degli Studi di Milano, Via Mangiagalli, 34, 20133 Milano, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Pisa, Pisa, Italia | - |
crisitem.author.dept | Dipartimento di Scienze della Terra e dell'Ambiente, Università degli studi di Pavia, Via Ferrata, 1, Pavia, Italy | - |
crisitem.author.dept | Istituto di Geoscienze e Georisorse, CNR, Via U.O.S. of Pavia, via Ferrata, 1, Pavia, Italy | - |
crisitem.author.orcid | 0000-0002-7522-9905 | - |
crisitem.author.orcid | 0000-0001-5343-4708 | - |
crisitem.author.orcid | 0000-0002-3864-6558 | - |
crisitem.author.orcid | 0000-0001-8353-2683 | - |
crisitem.author.orcid | 0000-0002-7346-2922 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
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File | Description | Size | Format | Existing users please Login |
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1-s2.0-S0024493717300713-main.pdf | The Cotoncello Shear Zone (Elba Island, Italy): The deep root of a fossil oceanic detachment fault in the Ligurian ophiolites | 7.76 MB | Adobe PDF |
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