Gelişmiş Arama

Basit öğe kaydını göster

dc.contributor.authorAydincakir, Emre
dc.contributor.authorRuffet, Gilles
dc.contributor.authorAkaryalı, Enver
dc.contributor.authorYücel, Cem
dc.contributor.authorGücer, Mehmet Ali
dc.contributor.authorKaygusuz, Abdullah
dc.date.accessioned2023-02-09T11:44:34Z
dc.date.available2023-02-09T11:44:34Z
dc.date.issued2022en_US
dc.identifier.citationEmre Aydınçakır, Cem Yücel, Gilles Ruffet, Mehmet Ali Gücer, Enver Akaryalı, Abdullah Kaygusuz, Petrogenesis of post-collisional Middle Eocene volcanism in the Eastern Pontides (NE, Turkey): Insights from geochemistry, whole-rock Sr-Nd-Pb isotopes, zircon U-Pb and 40Ar-39Ar geochronology, Geochemistry, Volume 82, Issue 2, 2022, 125871, ISSN 0009-2819, https://doi.org/10.1016/j.chemer.2022.125871. (https://www.sciencedirect.com/science/article/pii/S0009281922000113)en_US
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0009281922000113?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/20.500.12440/5803
dc.description.abstractThe debate about whether Eocene magmatism is considered to be post-collisional or subduction-related or not still continues. Here we offer new 40Ar-39Ar ad U-Pb zircon geochronology, mineral chemistry, bulk rock and SrNd-Pb isotope geochemistry data obtained from the southern dike (SD) suite, in comparison with the northern dike (ND) suite, from the Eastern Pontides. The geochronological data indicate that the SD suite erupted between 45.89 and 45.10 Ma corresponding to the Lutetian (Middle Eocene). The magmas of the ND suite are characterised by slightly more alkaline affinity compared to the SD suite. The trace and rare earth element (REEs) content of the SD suite is characterised by large ion lithophile element (LILEs; Sr, K2O, Ba, Rb) enrichment and depletion of Nb, Ta, and TiO2 elements to different degree with high Th/Yb ratios, which indicate that the magmas forming the SD and ND suites were derived from lithospheric mantle sources enriched by mostly slab derived fluids in the spinel stability field. The Sr, Nd and Pb radiogenic isotope ratios of the dikes support the view that the magma for the hydrous group (H-SD) was derived from a relatively more enriched mantle source than the other SD and ND suites. The ND suite and the anhydrous group (A-SD) display similar geochemical features characterised by moderate light earth element (LREE)/heavy rare earth element (HREE) ratios, while the H-SD group has respectively lower LREE/HREE ratios indicating higher melting degree. Detailed considerations of the alkalinity, enrichment and partial melting degree for the source of the studied volcanic rocks indicate that the magmas of the northern dike suite are characterised by slightly more alkaline affinity, whereas the magmas throughout the southern dike suite show increments in the enrichment rate and melting degree. In light of the obtained data and comparative interpretations, the geodynamic evolution and differences in petrogenetic character of the Lutetian magmas from both the northern and southern parts of the Eastern Pontides may be explained by different degrees of melting of a net veined mantle source initially metasomatized by mostly subduction fluids during asthenospheric upwelling due to fragmented asymmetric delamination in a postcollisional extensional tectonic environment.en_US
dc.language.isoengen_US
dc.publisherELSEVIER GMBHen_US
dc.relation.ispartofGEOCHEMISTRYen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectU-Pb geochronologyen_US
dc.subject40Ar-39Ar thermochronologyen_US
dc.subjectSr-Nd-Pb isotopesen_US
dc.subjectNet veined mantleen_US
dc.subjectDelaminationen_US
dc.subjectEastern Pontidesen_US
dc.subjectTurkeyen_US
dc.titlePetrogenesis of post-collisional Middle Eocene volcanism in the Eastern Pontides (NE, Turkey): Insights from geochemistry, whole-rock Sr-Nd-Pb isotopes, zircon U-Pb and 40Ar-39Ar geochronologyen_US
dc.typearticleen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.description.wospublicationidWOS:000811881600001en_US
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Jeoloji Mühendisliği Bölümüen_US
dc.authorid0000-0001-8704-8485en_US
dc.authorid0000-0001-7220-9397en_US
dc.authorid0000-0002-9075-3350en_US
dc.authorid0000-0003-1495-9186en_US
dc.authorid0000-0002-6277-6969en_US
dc.identifier.volume8en_US
dc.identifier.issue2en_US
dc.contributor.institutionauthorAydınçakır, Emre
dc.contributor.institutionauthorYücel, Cem
dc.contributor.institutionauthorGücer, Mehmet Ali
dc.contributor.institutionauthorAkaryalı, Enver
dc.contributor.institutionauthorKaygusuz, Abdullah
dc.identifier.doi10.1016/j.chemer.2022.125871en_US
dc.authorwosidAAH-2308-2019en_US
dc.authorwosidHLU-2452-2023en_US
dc.authorwosidI-3545-2012en_US
dc.authorwosidABI-4190-2020en_US
dc.authorwosidQ-2029-2015en_US
dc.authorscopusid25225086900en_US
dc.authorscopusid55624905900en_US
dc.authorscopusid57192064116en_US
dc.authorscopusid36238800100en_US
dc.authorscopusid6701580075en_US
dc.description.wosqualityQ2en_US


Bu öğenin dosyaları:

DosyalarBoyutBiçimGöster

Bu öğe ile ilişkili dosya yok.

Bu öğe aşağıdaki koleksiyon(lar)da görünmektedir.

Basit öğe kaydını göster