Neogene volcanoes of Chios, Greece: the relative importance of subduction and back-arc extension

Tertiary-Quaternary subduction processes and related magmatism in the Alpine-Mediterranean region

“…Their trace element and isotopic compositions are consistent with involvement of a subduction component ( Fig. 7 and 8; Keller, 1982;Briqueu et al 1986;Mitropoulos et al 1987;Huijmans et al 1988;Güleç 1991;Robert et al 1992;Pe-Piper et al 1995;Seyitoğlu et al 1997;Aldanmaz et al 2000). On the other hand, the younger alkaline mafic volcanic rocks show an intraplate OIB nature (Seyitoğlu & Scott 1992;Seyitoğlu et al 1997;Alici et al 2002).…”

“…The last eruption of basanitic to phonotephritic magmas occurred in the Kula region at 1.1-0.02 Ma (Güleç 1991). In the Aegean region Pe-Piper et al (1995) found a southward migration of volcanism. Calc-alkaline volcanism has characterized the Aegean volcanic arc from the Pliocene up to Recent times (Mann 1983;Barton & Huijsmans 1986;Briqueu et al 1986;Mitropoulos et al 1987;Huijsmans et al 1988;Francalanci et al 1998).…”

“…1; Fytikas et al 1984;Doglioni et al 2002). Volcanism occurred in two main phases: eruption of Oligocene to Middle Miocene calc-alkaline to shoshonitic magmas followed by eruption of alkaline and calc-alkaline magmas during Pliocene to Recent times (Pe-Piper & Piper 1989;Pe-Piper et al 1995;Seyitoğlu & Scott, 1992;Aldanmaz et al, 2000;Doglioni et al, 2002). In the Aegean-Western Anatolian region, volcanism started in the Oligocene following the Tethyan collision (Yilmaz et al 2001).…”

Source of arsenic based on geological and hydrogeochemical properties of geothermal systems in Western Turkey

“…Fytikas et al, 1984), but most are now considered as having resulted from regional extension and derived mainly from a hybrid magma formed by mixing of coeval mafic and felsic melts. The source of mafic magma is usually attributed to sub-continental lithospheric mantle (Seyitoğlu and Scott, 1992;Pe-Piper et al, 1995;Aldanmaz et al, 2000;Okay and Satır, 2000;Pe-Piper and Piper, 2001) or mafic lower crust (Aydogan et al, 2008;Ozgenç and Ilbeyli, 2008). Altunkaynak and Dilek (2006) and Dilek and Altunkaynak (2007) have studied in detail the chrono-spatial evolution of the Cenozoic postcollisional magmatism in western Anatolia and concluded that the magmatism has occurred in three distinct pulses becoming younger from north to south.…”

Bringing geoheritage underwater: definitions, methods, and application in two Mediterranean marine areas

“…Post-Alpine volcanic, lacustrine, alluvial and colluvial deposits overlie more than two-third of the terrain. Pe-Piper and Piper (1993,2002) and Pe-Piper et al (1995) attribute the volcanic rocks of Lesvos and Chios (the next Aegean island south of Lesvos) to early Miocene backarc extension (Novak and Soulakellis 2000). Due to the intense volcanic activity, large masses of volcanic materials and ash created thick pyroclastic sequence in Lesvos.…”