rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: 40Ar-39Ar dating and petrology of monzonite ejecta in tephra from Quaternary Gölcük volcano (Isparta, SW Turkey)
    sub title: tear-related contrasting metasomatic symptoms in extensional mantle-derived magmas
  title info:
    title: 40 Ar- 39 Ar dating and petrology of monzonite ejecta in tephra from Quaternary Gölcük volcano (Isparta, SW Turkey)
  name:
    name part: C̦oban, Hakan
    role:
      role term: creator
    role:
      role term: VerfasserIn
    role:
      role term: aut
  name:
    name part: Topuz, Gültekin
    name part: 1969-
    role:
      role term: VerfasserIn
    role:
      role term: aut
  name:
    name part: Schwarz, Winfried H.
    name part: 1968-
    role:
      role term: VerfasserIn
    role:
      role term: aut
  type of resource: text
  origin info:
    place:
      place term: xx
    date issued: 2019
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
  abstract: Eruption of (74-26 ka old) pyroclastic (pumice fall) flow deposits of the Quaternary Gölcük volcano, Isparta, SW Turkey, carried a cargo of Western Anatolian’s youngest monzonitic-syenitic ejecta, 40Ar-39Ar hornblende ages range 313+64−268+43 ka, and indicate that a shallow level felsic plutonic complex existed underneath the crater. These ejecta represent some of the youngest plutonic rocks known. The cooling time of this complex was coeval with the earlier main pyroclastic flow deposits (440 - 148 ka) of the multi-cycle eruptive center which also had a long-lived magma chamber. The monzosyenite ejecta contain plagioclase, K-feldspar, clinopyroxene, amphibole, mica, and accessory apatite, titanite and magnetite. In terms of Nb-Y-3Ga and Nb-Y-Ce, the ejecta, with strong shoshonitic affinity, plot in the field of A1 subtype granites, and represent A1-type magma generation in a back-arc extensional setting. Low Sr and high Nd isotopic ratios of monzosyenites exhibit isotopic similarity to enriched mantle-derived Gölcük-Isparta shoshonitic-ultrapotassic magmas. REE patterns show no significant Eu anomaly, but a strong enrichment of the LREE over the HREE. In multi-element diagrams, however, all samples have negative anomalies of Nb_Ta, Zr_Hf, P and Ti and strong enrichments of Ba, Sr, U, and Th. Moreover, variable (Hf/Sm)N and low (Ta/La)N ratios reflect subduction-related metasomatism in their mantle source. Gölcük monzosyenites and shoshonitic-ultrapotassic rocks overlap with mantle-derived A1-type alkali syenites in trace element abundances. This observation suggests that not only subduction-related fluids/melts, but also intraplate sublithospheric metasomatic agents played a crucial role on their mantle source. It is contended that, due to the percolation of both sublithospheric alkali silicate- and subduction-released-melts/fluids, the metasomatized mantle-derived parental magmas may illustrate a chemical paradox, carrying geochemical imprints of genetically…
  note: Hakan Çoban, Gültekin Topuz, Michael F. Roden, Nguyen Hoang, Winfried H. Schwarz
  note: Gesehen am 29.08.2019
  note: Im Titel sind die Zahlen 40 und 39 hochgestellt
  subject:
    topic: A-subtype monzonite ejecta
  subject:
    topic: Ar-Ar dating
  subject:
    topic: contrasting metasomatism
  subject:
    topic: Quaternary Gölcük volcano
  classification: 31
  related item:
    title info:
      title: Lithos
    name:
      name part: 40Ar-39Ar dating and petrology of monzonite ejecta in tephra from Quaternary Gölcük volcano (Isparta, SW Turkey) tear-related contrasting metasomatic symptoms in extensional mantle-derived magmas
    origin info:
      publisher: Amsterdam [u.a.] : Elsevier Science, 1968
    physical description:
      extent: Online-Ressource
    identifier: 1872-6143
    identifier: (DE-627)303393181
    identifier: (DE-600)1494884-9
    identifier: (DE-576)081952880
    part:
      text: 330-331(2019), Seite 160-176$17
  related item:
    name:
      name part: 40Ar-39Ar dating and petrology of monzonite ejecta in tephra from Quaternary Gölcük volcano (Isparta, SW Turkey) tear-related contrasting metasomatic symptoms in extensional mantle-derived magmas
    part:
      text: volume:330-331
    part:
      text: year:2019
    part:
      text: pages:160-176$17
  identifier: https://doi.org/10.1016/j.lithos.2019.02.006
  identifier: http://www.sciencedirect.com/science/article/pii/S0024493719300702
  record info:
    record content source: DE-627
    record creation date: 190829
    record change date: 20220816215057.0
    record identifier: 1672393493
    language of cataloging:
      language term: ger