Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/3541| DC Field | Value | Language |
|---|---|---|
| dc.contributor.authorall | Macera, P.; Dipartimento di Scienze della Terra, Universita’ di Pisa | en |
| dc.contributor.authorall | Gasperini, D.; Dipartimento di Scienze della Terra, Universita’ di Pisa | en |
| dc.contributor.authorall | Piromallo, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
| dc.contributor.authorall | Blichert-Toft, J.; Ecole Normale Superieure, Lyon | en |
| dc.contributor.authorall | Bosch, D.; Universite ‘‘Montpellier 2", Montpellier | en |
| dc.contributor.authorall | Del Moro, A.; Istituto di Geoscienze e Georisorse, C.N.R., Pisa | en |
| dc.contributor.authorall | Martin, S.; Dipartimento di Chimica Fisica Matematica, Universita` Insubria, Como | en |
| dc.date.accessioned | 2008-01-15T07:59:05Z | en |
| dc.date.available | 2008-01-15T07:59:05Z | en |
| dc.date.issued | 2003 | en |
| dc.identifier.uri | http://hdl.handle.net/2122/3541 | en |
| dc.description.abstract | Major and trace element and Sr–Nd–Hf–Pb isotopic data for the most primitive Tertiary lavas from the Veneto region (South-Eastern Alps, Italy) show the typical features of HIMU hotspot volcanism, variably diluted by a depleted asthenospheric mantle component (87Sr/86Sri=0.70306–0.70378; "Ndi=+3.9 to +6.8; "Hfi=+6.4 to +8.1, 206Pb/204Pbi=18.786–19.574). P-wave seismic tomography of the mantle below the Veneto region shows the presence of low-velocity anomalies at depth, which is consistent with possible upwellings of plume material. Between the depths of 100–250 km the velocity anomalies are approximately 2–2.5% slower than average, implying a temperature excess of about 220–280 K, in agreement with estimates for other mantle plumes in the world. In this context, the Veneto volcanics may represent the shallow expression of a mantle upflow. The presence of a HIMU-DM component in a collision environment has significant geodynamic implications. Slab detachment and ensuing rise of deep mantle material into the lithospheric gap is proposed to be a viable mechanism of hotspot magmatism in a subduction zone setting. | en |
| dc.language.iso | English | en |
| dc.publisher.name | Elsevier | en |
| dc.relation.ispartof | Journal of Geodynamics | en |
| dc.relation.ispartofseries | /36 (2003) | en |
| dc.subject | trace-element | en |
| dc.subject | isotopic composition | en |
| dc.subject | alkali basalts | en |
| dc.subject | central-Europe | en |
| dc.subject | slab break-off | en |
| dc.subject | plume | en |
| dc.title | Geodynamic implications of deep mantle upwelling in the source of Tertiary volcanics from the Veneto region (South-Eastern Alps) | en |
| dc.type | article | en |
| dc.description.status | Published | en |
| dc.type.QualityControl | Peer-reviewed | en |
| dc.description.pagenumber | 563–590 | en |
| dc.subject.INGV | 04. Solid Earth::04.07. Tectonophysics::04.07.02. Geodynamics | en |
| dc.identifier.doi | 10.1016/j.jog.2003.08.004 | en |
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| dc.description.obiettivoSpecifico | 3.3. Geodinamica e struttura dell'interno della Terra | en |
| dc.description.journalType | JCR Journal | en |
| dc.description.fulltext | reserved | en |
| dc.contributor.author | Macera, P. | en |
| dc.contributor.author | Gasperini, D. | en |
| dc.contributor.author | Piromallo, C. | en |
| dc.contributor.author | Blichert-Toft, J. | en |
| dc.contributor.author | Bosch, D. | en |
| dc.contributor.author | Del Moro, A. | en |
| dc.contributor.author | Martin, S. | en |
| dc.contributor.department | Dipartimento di Scienze della Terra, Universita’ di Pisa | en |
| dc.contributor.department | Dipartimento di Scienze della Terra, Universita’ di Pisa | en |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma1, Roma, Italia | en |
| dc.contributor.department | Ecole Normale Superieure, Lyon | en |
| dc.contributor.department | Universite ‘‘Montpellier 2", Montpellier | en |
| dc.contributor.department | Istituto di Geoscienze e Georisorse, C.N.R., Pisa | en |
| dc.contributor.department | Dipartimento di Chimica Fisica Matematica, Universita` Insubria, Como | 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 Ingegneria Civile, Edile-Architettura e Ambientale, Università dell’Aquila | - |
| crisitem.author.dept | Dipartimento di Scienze della Terra, Universita’ di Pisa | - |
| crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma1, Roma, Italia | - |
| crisitem.author.dept | Ecole Normale Superieure, Lyon | - |
| crisitem.author.dept | Universite ‘‘Montpellier 2", Montpellier | - |
| crisitem.author.dept | Istituto di Geoscienze e Georisorse, C.N.R., Pisa | - |
| crisitem.author.dept | Dipartimento di Chimica Fisica Matematica, Universita` Insubria, Como | - |
| crisitem.author.orcid | 0000-0003-3478-5128 | - |
| crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| crisitem.classification.parent | 04. Solid Earth | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
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