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  • 1
    Book
    Book
    Cenozoic volcanism in the Mediterranean Area (2007)
    Boulder, Colo : Geological Society of America
    Details Availability
    Keywords: Volcanism ; Geology, Stratigraphic Cenozoic ; Geodynamics ; Subduction zones ; Tyrrhenian Sea ; Aufsatzsammlung ; Mittelmeerraum ; Subduktion ; Vulkanismus ; Geologie ; Känozoikum ; Mittelmeer ; Magmatismus
    Type of Medium: Book
    Pages: V, 358 S. , Ill., graph. Darst., Kt.
    ISBN: 9780813724188
    Series Statement: Special paper 418
    URL: http://www.loc.gov/catdir/toc/fy0801/2007298655.html
    DDC: 551.2109182/2
    RVK:
    RO 10256
    Language: German
    Note: Transition from subduction-related to intraplate Neogene magmatism in the Western Anotolia and Aegean area /S. Agostini ... [et al.] --Neogene backarc volcanism of the Aegean /G. Pe-Piper and D.J.W. Piper --Petrology and volcanology of Kimolos and Polyegos volcanoes within the context of the South Aegean arc, Greece /L. Francalanci, G.E. Vougioukalakis, and M. Fytikas --Genesis of the Neogene to Quaternary volcanism in the Carpathian-Pannonian region /S. Harangi and L. Lenkey --Paleogene, early Miocene igneous rocks and geodynamics of the Alpine-Carpathian-Pannonian-Dinaric region /I Kovács ... [et al.] --Review of petrogenesis of Mediterranean Tertiary lamproites /D. Prelević, S. F. Foley, and V. Cvetković --Intraplate lithospheric and sublithospheric components in the Adriatic domain /L. Beccaluva ... [et al.] --Slab disruption, mantle circulation, and the opening of the Tyrrhenian basins /C. Faccenna ... [et al.] --Chemical and isotopic composition (Os, Pb, Nd, and Sr) of Neogene to Quaternary calc-alkalic, shoshonitic, and ultrapotassic mafic rocks from the Italian peninsula /S. Conticelli ... [et al.] --Components and processes in the magma genesis of the Phlegrean Volcanic District, southern Italy /M. D'Antonio ... [et al.] --Geochemical features and geodynamic significance of the southern Tyrrhenian backarc basin /T. Trua, G. Serri, and M.P. Marani --West-east geochemical and isotopic traverse along the volcanism of the Aeolian Island arc, southern Tyrrhenian Sea, Italy /L. Francalanci --Mount Etna pyroxene as tracer of petrogenetic processes and dynamics of the feeding system /P Armienti --Geochemical peculiarity of Phio-Quaternary volcanic rocks of Sardinia in the circum-Mediterranean area /M. Lustrino, L. Melluso, and V. Morra --Cenozoic evolution of the Alboran domain /M. Doblas, J. López-Ruiz, and J.-M. Cebriá --Cenozoic alkaline volcanism of the Atakor massif, Hoggar, Algeria /A. Azzouni-Sekkal ... [et al.]
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  • 2
    Electronic Resource
    Electronic Resource
    Magma generation and crustal accretion as evidenced by supra-subduction ophiolites of the Albanide–Hellenide Subpelagonian zone (2005)
    Melbourne, Australia : Blackwell Science Pty
    The @island arc 14 (2005), S. 0 
    Details
    ISSN: 1440-1738
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Abstract  Ophiolites of the Mirdita–Subpelagonian zone form a nearly continuous belt in the Albanide–Hellenide orogen, including mid-ocean ridge basalt (MORB) associations in the western Mirdita sector and supra-subduction zone (SSZ) complexes, with prevalent island arc tholeiitic (IAT) and minor boninitic affinities in the eastern part of the belt (i.e. eastern Mirdita, Pindos, Vourinos). In addition, basalts with geochemical features intermediate between MORB and IAT (MORB/IAT) are found in the central Mirdita and in the Aspropotamos sequence (Pindos). These basalts alternate with pure MORB and are cut by boninitic dykes. The distinctive compositional characteristics of the mafic magmas parental to the different ophiolitic suites can be accounted for by partial melting of mantle sources progressively depleted by melt extractions. Partial melting processes (10–20%) of lherzolitic sources generated pure MORB, leaving clinopyroxene-poor lherzolite as a residuum. Approximately 10% water-assisted partial melting of this latter source, in an SSZ setting, may in turn generate basalts with MORB/IAT intermediate characteristics, whereas IAT basalts and boninites may have been derived from 10–20% and 30% partial melting, respectively, of the same source variably enriched by subduction-derived fluids. In addition, boninites may also have been derived by comparatively lower degrees of hydrated partial melting of more refractory harzburgitic sources. A generalized petrologic model based on mass balance calculations between bulk rock and mineral compositions, indicate that most of the intrusives (from ultramafic cumulates to gabbronorites and plagiogranites), as well as sheeted dykes and volcanics (from basalts to rhyodacites) forming the bulk crustal section of the SSZ ophiolites, may be accounted for by shallow fractional crystallization from low-Ti picritic parental magmas very similar in composition to IAT picrites from Pacific intraoceanic arcs. The most appropriate tectono-magmatic model for the generation of the SSZ Tethyan ophiolites implies low velocity plate-convergence of the intraoceanic subduction and generation of a nascent arc with IAT affinity and progressive slab roll-back, mantle diapirism and extension from the arc axis to the forearc region, with generation of MORB/IAT intermediate basalts and boninitic magmas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1440-1738.2005.00483.x
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