 | | Journal (article/letter/editorial) | | African Plate: Evidence from Gharyan Lherzolite Xenoliths (Northern West Libya)1 Mohamed M. Hamdya, *, Youngwoo...Environment, Faculty of Science, Science, Al Mergab University, Al Khums, Libya *e-mail: mohamed.hamdy@science.tanta...Ma) of the NNW-SSE extending Gharyan Cenozoic volcanics (Northern West Libya) contains numerous fresh lherzolite...(hercynite–picotite–Al-rich chromite spinels with Cr# = 0.08–0.11) refer to the fertile nature of Gharyan peridotites...with high contents of Na2O, and enrichment of the Al-spinel in TiO2. The estimated pre-eruptive temperature |  | | Journal (article/letter/editorial) | | compositions; SC Tatsumi et al., 1999; Downes et al., 2005; Pilet et al., 2008). These alkaline melts...non-alkaline magmatic series can occur (Marks et al., 2008). As an example, fractionation of small amounts...contents during fractional crystallization (Marks et al., 2008). Very incompatible element with similar geochemical...twins, namely Nb/Ta and Zr/Hf (Weyer et al., 2003; Pfander et al., 2007). Recent studies however pointed...ratios increase during differentiation (e.g., Marks et al., 2008), implying that the partition coefficients |  | Cucciniello, C., Tucker, R. D., Jourdan, F., Melluso, L., Morra, V. (2016) The age and petrogenesis of alkaline magmatism in the Ampasindava Peninsula and Nosy Be archipelago, northern Madagascar. Mineralogy and Petrology, 110 (2) 309-331 doi:10.1007/s00710-015-0387-1 | Journal (article/letter/editorial) | | Bobaomby (Cap d’Ambre) and Massif d’Ambre primitive volcanic rocks. These geochemical features are broadly...(92–84 Ma; Cucciniello et al. 2010, 2011a, 2013; Melluso et al. 2005; Storey et al. 1995) and is characterized...Precambrian basement (e.g., Melluso et al. 2001; Cucciniello et al. 2013 and references therein). The second... and (iii) Pleistocene – Recent (e.g., Tucker et al. 2008 and references therein). The igneous rocks...Ankaizina district; e.g., Melluso and Morra 2000; Buchwaldt et al. 2005; C. Cucciniello et al. Cucciniello |  | Mazzeo, F.C., Arienzo, I., Aulinas, M., Casalini, M., Di Renzo, V., D'Antonio, M. (2018) Mineralogical, geochemical and isotopic characteristics of alkaline mafic igneous rocks from Punta delle Pietre Nere (Gargano, Southern Italy) Lithos, 308. 316-328 doi:10.1016/j.lithos.2018.03.015 | Journal (article/letter/editorial) | | crystallization of melts within the amphibole stability field in presence of H2O, as shown by several PT experimental...Introduction D Magmatism in Italy, represented by both volcanic and plutonic igneous rocks since Late Oligocene...(Carminati et al., 2012 for reviews). Older magmatism (Cretaceous-Oligocene plutonic and volcanic CE rocks)...Macera et al., 2003; Beccaluva et al., 1998 and 2007; Bianchini et al., 2008; Avanzinelli et al., 2012)...2012), which includes the Veneto volcanic province (Lessini Mts., Marostica, Berici and Euganean Hills, in |  | Cucciniello, Ciro, Melluso, Leone, le Roex, Anton P., Jourdan, Fred, Morra, Vincenzo, de’ Gennaro, Roberto, Grifa, Celestino (2017) From olivine nephelinite, basanite and basalt to peralkaline trachyphonolite and comendite in the Ankaratra volcanic complex, Madagascar: 40 Ar/ 39 Ar ages, phase compositions and bulk-rock geochemical and isotopic evolution. Lithos, 274. 363-382 doi:10.1016/j.lithos.2016.12.026 | Journal (article/letter/editorial) | | trachyphonolite and comendite in the Ankaratra Volcanic Complex, Madagascar: 39Ar/40Ar ages, phase compositions...trachyphonolite and comendite in the Ankaratra Volcanic Complex, Madagascar: 39Ar/40Ar ages, phase compositions...trachyphonolite and comendite in the Ankaratra Volcanic Complex, Madagascar: 39Ar/40Ar ages, phase T...del Sannio, Italy Abstract D The Ankaratra volcanic field covers an area of ~3800 km2 in central Madagascar...emplaced at different ages (Miocene to Recent). The volcanic products include ultramafic-mafic (olivine-leucite |  | | Report (volume) | | fertile spinel lherzolites from the Viliga Volcanic Field in NE Russia SEGHEDI , I., NTAFLOS , T. & PÉCSKAY...petrological evidence from the Gharyan lherzolite xenoliths, NW Libya PERINELLI , C., ORLANDO , A., CONTE...reaction (Coltorti et al. 2000), (2) in situ melting (Chazot et al. 1996; Yaxley et al. 1997), (3) decompressional...phlogopite (e.g. Grégoire et al. 2000; Moine et al. 2001; Coltorti et al. 2007a). Another revolution is...wedges (e.g. Smith et al. 1999; Grégoire et al. 2001; McInnes et al. 2001; Ishimaru et al. 2007). Most of |  | Melluso, L., Tucker, R.D., Cucciniello, C., le Roex, A.P., Morra, V., Zanetti, A., Rakotoson, R.L. (2018) The magmatic evolution and genesis of the Quaternary basanite-trachyphonolite suite of Itasy (Madagascar) as inferred by geochemistry, Sr-Nd-Pb isotopes and trace element distribution in coexisting phases. Lithos, 310. 50-64 doi:10.1016/j.lithos.2018.04.003 | Journal (article/letter/editorial) | | Pleistocene-Holocene volcanic field in central Madagascar, located to the west of the ED Ankaratra volcanic complex...flows, covering an area of ab. 400 km2. The last volcanic episodes PT probably dated ca. 6000-7100 y BP;...volcanism (Woolley, 2001; Tucker et al., 2008; Cucciniello et al., 2011, 2016, 2017), which crops out...the island (Nicollet, 1984; Piqué et al., 1999; Cucciniello et al., 2016, 2018). The changing ages and...(Tucker et al., 2014; Melluso et al., 2016; Cucciniello et al., 2018). The central field of alkaline |
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