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Relationships between magmatism and tectonics in a continental rift: The Pantelleria Island region (Sicily Channel, Italy)
Author(s)
Language
English
Obiettivo Specifico
3.2. Tettonica attiva
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
1-2/251(2008)
Publisher
Elsevier
Pages (printed)
32-46
Issued date
2008
Abstract
Field geological data of the Pantelleria Island, a large Late Quaternary volcano located in the Sicily Channel rift zone, integrated with
offshore geophysical information, are used to derive the structural setting of the Island and the surrounding region, and to analyse the
relationships between tectonics and magmatism. Field work shows that the principal faults exposed on the Island fall into two systems trending
NNE–SSW and NW–SE. Mapped faults from offshore multichannel seismic profiles show similar trends, and some of them represent the
offshore extension of the Pantelleria Island structures. The NW–SE faults bound the Pantelleria Graben, one of the three main depressions
formed since the Late Miocene–Early Pliocene within the African continental platform, which compose the Sicily Channel rift zone. A 3-D
Moho depth geometry, derived from inversion of Bouguer gravity data, shows a significant uplift of the discontinuity up to 16–17 km beneath
the westernmost part of the Pantelleria Graben and beneath the Pantelleria Island; it lows rapidly to 24–25 km away from the graben northeastward
and south-westward. The Moho uplift could explain the presence of a shallow magma chamber in the southern part of the Island,
where processes of magmatic differentiation are documented. Geological and geophysical data suggest that the northwestern part of the Sicily
Channel is presently dominated by a roughly E–W directed extensional regime. Crustal cracking feeding the Quaternary volcanism could be
also related to this extensional field that would be further responsible for the development of the N–S trending volcanic belt that extends in the
Sicily Channel from Lampedusa Island to the Graham Bank. This mode of deformation is confirmed also by geodetic data. This implies that in
the northwestern part of the Sicily Channel, the E–W extension replaced the NE–SW crustal stretching that originated the NW-trending
tectonic depressions constituting the rift zone.
© 2008 Elsevier B.V. All rights reserved.
offshore geophysical information, are used to derive the structural setting of the Island and the surrounding region, and to analyse the
relationships between tectonics and magmatism. Field work shows that the principal faults exposed on the Island fall into two systems trending
NNE–SSW and NW–SE. Mapped faults from offshore multichannel seismic profiles show similar trends, and some of them represent the
offshore extension of the Pantelleria Island structures. The NW–SE faults bound the Pantelleria Graben, one of the three main depressions
formed since the Late Miocene–Early Pliocene within the African continental platform, which compose the Sicily Channel rift zone. A 3-D
Moho depth geometry, derived from inversion of Bouguer gravity data, shows a significant uplift of the discontinuity up to 16–17 km beneath
the westernmost part of the Pantelleria Graben and beneath the Pantelleria Island; it lows rapidly to 24–25 km away from the graben northeastward
and south-westward. The Moho uplift could explain the presence of a shallow magma chamber in the southern part of the Island,
where processes of magmatic differentiation are documented. Geological and geophysical data suggest that the northwestern part of the Sicily
Channel is presently dominated by a roughly E–W directed extensional regime. Crustal cracking feeding the Quaternary volcanism could be
also related to this extensional field that would be further responsible for the development of the N–S trending volcanic belt that extends in the
Sicily Channel from Lampedusa Island to the Graham Bank. This mode of deformation is confirmed also by geodetic data. This implies that in
the northwestern part of the Sicily Channel, the E–W extension replaced the NE–SW crustal stretching that originated the NW-trending
tectonic depressions constituting the rift zone.
© 2008 Elsevier B.V. All rights reserved.
References
Argnani, A., "The Strait of Sicily rift zone: foreland deformation related to the evolution of a back-arc basin" J. Geodyn. 1990 pp. 311-331
Beccaluva, L.; Colantoni, P.; Di Girolamo, P.; Savelli, C., "Upper Miocene submarine volcanism in the Strait of Sicily (Banco Senza Nome)" Bull. Volcanol. 1981 pp. 573-581
Beccaluva, L.; Rossi, P.L.; Serri, G., "Neogene to Recent volcanism of the southern Tyrrhenian–Sicilian area: implication for a geodynamic evolution of the Calabrian Arc" Earth Evol. Sci. 1983 pp. 222-238
Behncke, B.; Berrino, G.; Corrado, G.; Velardita, R., "Ground deformation and gravity changes on the Island of Pantelleria in the geodynamic framework of the Sicily Channel" J. Volcanol. Geotherm. Res. 2006 pp. 146-162
Bibliographic Page Full Text
Ben-Avraham, Z.; Nur, A.; Cello, G., "Active transcurrent fault system along the north African passive margin" Tectonophysics 1987 pp. 249-260
Berrino, G.; Capuano, P., "Gravity anomalies and structures at the Island of Pantelleria" Acta Vulcanol. 1995 pp. 19-26
Boccaletti, M.; Nicolich, R.; Tortorici, L., "The Calabrian Arc and the Ionian Sea in the dynamic evolution of the Central Mediterranean" Mar. Geol. 1984 pp. 219-245
Boccaletti, M.; Cello, G.; Tortorici, L., "Transtensional tectonics in the Sicily Channel" J. Struct. Geol. 1987 pp. 869-876
Burollet, P.F., "Structures and tectonics of Tunisia" Tectonophysics 1991 pp. 359-369
Burollet, P.F.; Mugniot, J.M.; Sweeney, P., Nairn, A.E.M.; Kanes, W.H.; Stelhi, F.G., Editors, The Ocean Basins and Margins vol. 4b, Plenum, New York, (1978)
Calanchi, N.; Colantoni, P.; Rossi, P.L.; Saitta, M.; Serri, G., "The Strait of Sicily continental rift system: physiography and petrochemistry of the submarine volcanic centers" Mar. Geol. 1989 pp. 55-83
Carapezza, M.; Ferla, P.; Nuccio, P.M.; Valenza, M., "Caratteri metrologici e geochimica delle vulcaniti dell'Isola Ferdinandea" Rend. Soc. Ital. Mineral. Petrol. 1979 pp. 377-388
Cello, G., "Structure and deformation processes in the Strait of Sicily “rift zone”" Tectonophysics 1987 pp. 237-247
Cello, G.; Crisci, M.; Marabini, S.; Tortorici, L., "Transtensive tectonics in the Strait of Sicily: structural and volcanological evidence from the Island of Pantelleria" Tectonics 1985 pp. 311-322
Chierici, R.; Grassi, S.; La Rosa, N.; Nannini, R.; Squarci, P.; Zurlo, R., Proc. World Geothermal Congress, Florence (Italy), May 18-31, (1995)
Civetta, L.; Cornette, Y.; Crisci, G.; Gillot, P.-Y.; Orsi, G.; Requejos, C.S., "Geology, geochronology and chemical evolution of the Island of Pantelleria" Geol. Mag. 1984 pp. 541-668
Civetta, L.; Cornette, Y.; Gillot, P.-Y.; Orsi, G., "The eruptive history of Pantelleria (Sicily Channel) in the last 50 ka" Bull. Volcanol. 1988 pp. 47-57
Civetta, L.; D'Antonio, M.; Orsi, G.; Tilton, G.R., "The geochemistry of volcanic rocks from Pantelleria Island, Sicily Channel: petrogenesis and characteristics of the mantle source region" J. Petrol. 1998 pp. 1453-1491
Colantoni, P., "Note di geologia marina sul Canale di Sicilia" G. Geol 1975 pp. 181-207
Colombi, B.; Giese, P.; Luongo, G.; Morelli, C.; Riuscetti, M.; Scarascia, S.; Schutte, K.-G.; Strowald, J.; De Visintini, G., "Preliminary report on the seismic refraction profile Gargano–Salerno–Palermo–Pantelleria" Boll. Geofis. Teor. Appl. 1973 pp. 225-254
Consiglio Nazionale delle Ricerche (CNR), 1991. Structural model of Italy, scale 1:500.000, sheets 5 and 6 – Selca, Firenze.
D'Agostino, N.; Selvaggi, G., "Crustal motion along the Eurasia–Nubia plate boundary in the Calabrian arc and Sicily and active extension in the Messina Straits from GPS measurements" J. Geophys. Res. 2004 pp. B11402
Della Vedova, B.; Pellis, G.; Corubolo, P., Atti 6° Convegno GNGTS, CNR Roma, (1987)
Finetti, I.R., "Geophysical study of the Sicily Channel rift zone" Boll. Geofis. Teor. Appl. 1984 pp. 3-28
Finetti, I.R.; Del Ben, A., Finetti, I.R., Editor, CROP PROJECT: Deep Seismic Exploration of the Central Mediterranean and Italy, Elsevier B.V., (2005)
Hollenstein, C.H.; Kahle, H.G.; Geiger, A.; Jenny, S.; Goes, S.; Giardini, D., "New GPS constraints on the Africa–Eurasia plate boundary zone in southern Italy" Geophys. Res. Lett. 2003 pp. 1935
Illies, J.H., "Graben formation – the Maltese Islands – a case history" Tectonophysics 1981 pp. 151-168
Jongsma, D.; Van Hinte, J.E.; Woodside, J.M., "Geologic structure and neotectonics of the North African continental margin south of Sicily" Mar. Pet. Geol. 1985 pp. 156-179
Lanzafame, G., Rossi, P.L., Tranne, C.A., Lanti, E., 1994. Carta geologica dell'Isola di Linosa 1:5000. Selca, Firenze, Italy.
Mahood, G.A.; Hildreth, W., "Geology of the peralkaline volcano at Pantelleria, Strait of Sicily" Bull. Volcanol. 1986 pp. 143-172
Maldonado, A.; Stanley, D.I., "Lithofacies as a function of depth in the Strait of Sicily" Geology 1977 pp. 111-117
Morelli, C.; Gantar, C.; Pisani, M., "Bathymetry, gravity and magnetism in the Straits of Sicily and Ionian Sea" Boll. Geofis. Teor. Appl. 1975 pp. 39-58
Pe-Piper, G.; Piper, D.J.W.; Perissoratis, C., "Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc" J. Volcanol. Geotherm. Res. 2005 pp. 315-338
Bibliographic Page Full Text
Reuther, C.D.; Eisbacher, G.H., "Pantelleria rift-crustal extension in a convergent intraplate setting" Geol. Rundsch. 1985 pp. 585-597
Riccò, A., "Terremoti, sollevamento ed eruzione sottomarina a Pantelleria nella seconda metà dell'ottobre 1891" Boll. Soc. Geogr. Ital. 1892 pp. 1-31
Rossi, P.L.; Tranne, C.A.; Calanchi, N.; Lanti, E., "Geology, stratigraphy and volcanology evolution of the Island of Linosa (Sicily Channel)" Acta Vulcanol. 1996 pp. 73-90
Rotolo, S.G.; Castorina, F.; Cellula, D.; Pompilio, M., "Petrology and Geochemistry of Submarine Volcanism in the Sicily Channel" J. Geol. 2006 pp. 355-365
Scarascia, S.; Cassinis, R.; Lozej, A.; Nebuloni, A., "A seismic and gravimetric model of crustal structures across the Sicily Channel Rift Zone" Boll. Soc. Geol. Ital. 2000 pp. 213-222
Squarci, P.; Gianelli, S.; Grassi, S.; Mussi, M.; D'Amore, F., "Preliminary results of geothermal prospecting on the Island of Pantelleria (Italy)" Acta Vulcanol. 1994 pp. 117-123
Torelli, L.; Zitellini, N.; Argnani, A.; Brancolini, G.; De Cillia, C.; Peis, D.; Tricart, P., "Sezione geologica crostale dall'avampaese Pelagiano al Bacino di retroarco Tirrenico (Mediterraneo centrale)" Mem. Soc. Geol. Ital. 1991 pp. 385-399
Washington, H.S., "The submarine eruption of 1831 and 1891 near Pantelleria" Am. J. Sci. 1909 pp. 131-150
Winnock, E., Wezel, I.F.C., Editor, Sedimentary Basins of Mediterranean Margins, Tecnoprint, Bologna, (1981)
Zolotarev, V.G.; Sochelnikov, V.V., "Geothermal conditions of the African–Sicilian rise" Izv. - Acad. Sci. USSR, Phys. Solid Earth 1980 pp. 202-206
Beccaluva, L.; Colantoni, P.; Di Girolamo, P.; Savelli, C., "Upper Miocene submarine volcanism in the Strait of Sicily (Banco Senza Nome)" Bull. Volcanol. 1981 pp. 573-581
Beccaluva, L.; Rossi, P.L.; Serri, G., "Neogene to Recent volcanism of the southern Tyrrhenian–Sicilian area: implication for a geodynamic evolution of the Calabrian Arc" Earth Evol. Sci. 1983 pp. 222-238
Behncke, B.; Berrino, G.; Corrado, G.; Velardita, R., "Ground deformation and gravity changes on the Island of Pantelleria in the geodynamic framework of the Sicily Channel" J. Volcanol. Geotherm. Res. 2006 pp. 146-162
Bibliographic Page Full Text
Ben-Avraham, Z.; Nur, A.; Cello, G., "Active transcurrent fault system along the north African passive margin" Tectonophysics 1987 pp. 249-260
Berrino, G.; Capuano, P., "Gravity anomalies and structures at the Island of Pantelleria" Acta Vulcanol. 1995 pp. 19-26
Boccaletti, M.; Nicolich, R.; Tortorici, L., "The Calabrian Arc and the Ionian Sea in the dynamic evolution of the Central Mediterranean" Mar. Geol. 1984 pp. 219-245
Boccaletti, M.; Cello, G.; Tortorici, L., "Transtensional tectonics in the Sicily Channel" J. Struct. Geol. 1987 pp. 869-876
Burollet, P.F., "Structures and tectonics of Tunisia" Tectonophysics 1991 pp. 359-369
Burollet, P.F.; Mugniot, J.M.; Sweeney, P., Nairn, A.E.M.; Kanes, W.H.; Stelhi, F.G., Editors, The Ocean Basins and Margins vol. 4b, Plenum, New York, (1978)
Calanchi, N.; Colantoni, P.; Rossi, P.L.; Saitta, M.; Serri, G., "The Strait of Sicily continental rift system: physiography and petrochemistry of the submarine volcanic centers" Mar. Geol. 1989 pp. 55-83
Carapezza, M.; Ferla, P.; Nuccio, P.M.; Valenza, M., "Caratteri metrologici e geochimica delle vulcaniti dell'Isola Ferdinandea" Rend. Soc. Ital. Mineral. Petrol. 1979 pp. 377-388
Cello, G., "Structure and deformation processes in the Strait of Sicily “rift zone”" Tectonophysics 1987 pp. 237-247
Cello, G.; Crisci, M.; Marabini, S.; Tortorici, L., "Transtensive tectonics in the Strait of Sicily: structural and volcanological evidence from the Island of Pantelleria" Tectonics 1985 pp. 311-322
Chierici, R.; Grassi, S.; La Rosa, N.; Nannini, R.; Squarci, P.; Zurlo, R., Proc. World Geothermal Congress, Florence (Italy), May 18-31, (1995)
Civetta, L.; Cornette, Y.; Crisci, G.; Gillot, P.-Y.; Orsi, G.; Requejos, C.S., "Geology, geochronology and chemical evolution of the Island of Pantelleria" Geol. Mag. 1984 pp. 541-668
Civetta, L.; Cornette, Y.; Gillot, P.-Y.; Orsi, G., "The eruptive history of Pantelleria (Sicily Channel) in the last 50 ka" Bull. Volcanol. 1988 pp. 47-57
Civetta, L.; D'Antonio, M.; Orsi, G.; Tilton, G.R., "The geochemistry of volcanic rocks from Pantelleria Island, Sicily Channel: petrogenesis and characteristics of the mantle source region" J. Petrol. 1998 pp. 1453-1491
Colantoni, P., "Note di geologia marina sul Canale di Sicilia" G. Geol 1975 pp. 181-207
Colombi, B.; Giese, P.; Luongo, G.; Morelli, C.; Riuscetti, M.; Scarascia, S.; Schutte, K.-G.; Strowald, J.; De Visintini, G., "Preliminary report on the seismic refraction profile Gargano–Salerno–Palermo–Pantelleria" Boll. Geofis. Teor. Appl. 1973 pp. 225-254
Consiglio Nazionale delle Ricerche (CNR), 1991. Structural model of Italy, scale 1:500.000, sheets 5 and 6 – Selca, Firenze.
D'Agostino, N.; Selvaggi, G., "Crustal motion along the Eurasia–Nubia plate boundary in the Calabrian arc and Sicily and active extension in the Messina Straits from GPS measurements" J. Geophys. Res. 2004 pp. B11402
Della Vedova, B.; Pellis, G.; Corubolo, P., Atti 6° Convegno GNGTS, CNR Roma, (1987)
Finetti, I.R., "Geophysical study of the Sicily Channel rift zone" Boll. Geofis. Teor. Appl. 1984 pp. 3-28
Finetti, I.R.; Del Ben, A., Finetti, I.R., Editor, CROP PROJECT: Deep Seismic Exploration of the Central Mediterranean and Italy, Elsevier B.V., (2005)
Hollenstein, C.H.; Kahle, H.G.; Geiger, A.; Jenny, S.; Goes, S.; Giardini, D., "New GPS constraints on the Africa–Eurasia plate boundary zone in southern Italy" Geophys. Res. Lett. 2003 pp. 1935
Illies, J.H., "Graben formation – the Maltese Islands – a case history" Tectonophysics 1981 pp. 151-168
Jongsma, D.; Van Hinte, J.E.; Woodside, J.M., "Geologic structure and neotectonics of the North African continental margin south of Sicily" Mar. Pet. Geol. 1985 pp. 156-179
Lanzafame, G., Rossi, P.L., Tranne, C.A., Lanti, E., 1994. Carta geologica dell'Isola di Linosa 1:5000. Selca, Firenze, Italy.
Mahood, G.A.; Hildreth, W., "Geology of the peralkaline volcano at Pantelleria, Strait of Sicily" Bull. Volcanol. 1986 pp. 143-172
Maldonado, A.; Stanley, D.I., "Lithofacies as a function of depth in the Strait of Sicily" Geology 1977 pp. 111-117
Morelli, C.; Gantar, C.; Pisani, M., "Bathymetry, gravity and magnetism in the Straits of Sicily and Ionian Sea" Boll. Geofis. Teor. Appl. 1975 pp. 39-58
Pe-Piper, G.; Piper, D.J.W.; Perissoratis, C., "Neotectonics and the Kos Plateau Tuff eruption of 161 ka, South Aegean arc" J. Volcanol. Geotherm. Res. 2005 pp. 315-338
Bibliographic Page Full Text
Reuther, C.D.; Eisbacher, G.H., "Pantelleria rift-crustal extension in a convergent intraplate setting" Geol. Rundsch. 1985 pp. 585-597
Riccò, A., "Terremoti, sollevamento ed eruzione sottomarina a Pantelleria nella seconda metà dell'ottobre 1891" Boll. Soc. Geogr. Ital. 1892 pp. 1-31
Rossi, P.L.; Tranne, C.A.; Calanchi, N.; Lanti, E., "Geology, stratigraphy and volcanology evolution of the Island of Linosa (Sicily Channel)" Acta Vulcanol. 1996 pp. 73-90
Rotolo, S.G.; Castorina, F.; Cellula, D.; Pompilio, M., "Petrology and Geochemistry of Submarine Volcanism in the Sicily Channel" J. Geol. 2006 pp. 355-365
Scarascia, S.; Cassinis, R.; Lozej, A.; Nebuloni, A., "A seismic and gravimetric model of crustal structures across the Sicily Channel Rift Zone" Boll. Soc. Geol. Ital. 2000 pp. 213-222
Squarci, P.; Gianelli, S.; Grassi, S.; Mussi, M.; D'Amore, F., "Preliminary results of geothermal prospecting on the Island of Pantelleria (Italy)" Acta Vulcanol. 1994 pp. 117-123
Torelli, L.; Zitellini, N.; Argnani, A.; Brancolini, G.; De Cillia, C.; Peis, D.; Tricart, P., "Sezione geologica crostale dall'avampaese Pelagiano al Bacino di retroarco Tirrenico (Mediterraneo centrale)" Mem. Soc. Geol. Ital. 1991 pp. 385-399
Washington, H.S., "The submarine eruption of 1831 and 1891 near Pantelleria" Am. J. Sci. 1909 pp. 131-150
Winnock, E., Wezel, I.F.C., Editor, Sedimentary Basins of Mediterranean Margins, Tecnoprint, Bologna, (1981)
Zolotarev, V.G.; Sochelnikov, V.V., "Geothermal conditions of the African–Sicilian rise" Izv. - Acad. Sci. USSR, Phys. Solid Earth 1980 pp. 202-206
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