Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/15310| DC Field | Value | Language |
|---|---|---|
| dc.date.accessioned | 2022-02-09T08:17:28Z | - |
| dc.date.available | 2022-02-09T08:17:28Z | - |
| dc.date.issued | 2021 | - |
| dc.identifier.uri | http://hdl.handle.net/2122/15310 | - |
| dc.description.abstract | The eruptive history of Pantelleria has been marked by the eruption of nine peralkaline ignimbrites, with inter-ignimbrite episodes from small, local volcanic centres. New whole-rock geochemical data are presented for seven ignimbrites and used with published data for younger units to track compositional changes with time. From 190 ka, silicicmagmatismwas dominated by comenditic trachyte to comendite compositions, evolving along generally similar liquid lines of descent (LLOD). The final ignimbrite, the Green Tuff ( 46 ka), was tapped from a compositionally zoned pantelleritic upper reservoir to a trachytic mush zone. Younger (20–7 ka) silicic magmatism has been relatively small scale, with compositions similar to the earliest pre-Green Tuff pantelleritic ignimbrite (Zinedi). These data suggest that the comenditic reservoirs may have been emplaced at deeper levels than the pantelleritic reservoirs. While both types of series evolved along similar LLOD dominated by fractionation of alkali feldspar, it is the fractionation of iron that determines whether comendite or pantellerite is produced. The deeper reservoirs were more oxidizing and wetter, thus leading to the crystallization of magnetite and therefore the fractionation of iron. | en_US |
| dc.language.iso | English | en_US |
| dc.publisher.name | Edition scientifiques | en_US |
| dc.relation.ispartof | Comptes Rendus Geoscience | en_US |
| dc.relation.ispartofseries | S2/353 (2021) | en_US |
| dc.rights | CC0 1.0 Universal | * |
| dc.rights.uri | http://creativecommons.org/publicdomain/zero/1.0/ | * |
| dc.subject | Pantelleria, Ignimbrite, Magma reservoirs, Compositional changes with time, Comendite, Pantellerite. | en_US |
| dc.title | Evolution of the magma system of Pantelleria (Italy) from 190 ka to present | en_US |
| dc.type | article | en |
| dc.description.status | Published | en_US |
| dc.type.QualityControl | Peer-reviewed | en_US |
| dc.description.pagenumber | 133-149 | en_US |
| dc.identifier.doi | 10.5802/crgeos.50 | en_US |
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G oscience, 2021, 353, no S2, 1-17 Nina J. Jordan et al. 17 ter on quartz-feldspar cotectic compositions in the rhyolitic system and implications for geobarometry. J. Petrol., 58, 789–818. Williams, R., Branney, M. J., and Barry, T. L. (2014). Temporal and spatial evolution of a waxing then waning catastrophic density current revealed | en_US |
| dc.description.obiettivoSpecifico | 3V. Proprietà chimico-fisiche dei magmi e dei prodotti vulcanici | en_US |
| dc.description.journalType | JCR Journal | en_US |
| dc.relation.eissn | 1778-7025 | en_US |
| dc.contributor.author | Jordan, Nina J. | - |
| dc.contributor.author | White, John Charles | - |
| dc.contributor.author | MacDonald, Ray | - |
| dc.contributor.author | Rotolo, Silvio Giuseppe | - |
| dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Palermo, Palermo, Italia | en_US |
| item.openairetype | article | - |
| item.cerifentitytype | Publications | - |
| item.languageiso639-1 | en | - |
| item.grantfulltext | open | - |
| item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
| item.fulltext | With Fulltext | - |
| crisitem.author.dept | Eastern Kentucky University USA | - |
| crisitem.author.dept | Università degli Studi di Palermo | - |
| crisitem.author.orcid | 0000-0002-8576-766X | - |
| crisitem.author.orcid | 0000-0001-7523-1338 | - |
| crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
| Appears in Collections: | Article published / in press | |
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| Jordan et al 2021.pdf | Open Access published article | 2.33 MB | Adobe PDF | View/Open |
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