Pantelleria Southeast Seamount, Sicily Channel (Sicilian Channel; Strait of Sicily), Italy
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| Latitude & Longitude (WGS84): | 36° 25' 55'' North , 12° 20' 1'' East |
|---|---|
| Latitude & Longitude (decimal): | 36.43206, 12.33385 |
| Name(s) in local language(s): | Monte submarino Pantelleria Sud-Est, Canale di Sicilia (Stretto di Sicilia), Italia |
This volcanic seamount, located to the southeast of Pantelleria, rises to 210-200 m below sea level and its base is at a depth of 570-560 m b.s.l.
Whole-rock analyses of volcanics, dredged by the research vessel Urania in 2000 between 216 and 467 m, exhibit two distinct compositions: a subalkaline (tholeiitic) basalt and a tephrite. The studied samples are variably porphyritic, with phenocrysts of clinopyroxene, plagioclase (An51–70), and opaques, set in a glassy to microcrystalline groundmass. One sample is plagioclase-rich and subophitic in texture, with a crystalline groundmass. It is characterised by a low-Ti clinopyroxene; mafic minerals are variably altered, and some secondary calcite is also present.
Mineral List
3 valid minerals.
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References
Rotolo, S.G., Castorina, F., Cellura, D., Pompilio, M. (2006): Petrology and geochemistry of submarine volcanism in the Sicily Channel Rift. J. Geol., 114, 3, 355-365.
Peccerillo, A. (2017): Cenozoic Volcanism in the Tyrrhenian Sea Region. Second Edition. Advances in Geology. Springer International Publishing AG, Cham, Switzerland, 398 pp.
Peccerillo, A. (2017): Cenozoic Volcanism in the Tyrrhenian Sea Region. Second Edition. Advances in Geology. Springer International Publishing AG, Cham, Switzerland, 398 pp.
