Age, composition and origin of the paleo-oceanic gabbros of Deli Jovan Massif (NE Serbia)

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Authors:Zakariadze, Guram S.; Bayanova, T. B.; Karpenko, S. F.; Korikovsky, S. P.; Mitrofanov, F. P.; Karamata, S. O.; Sergeev, S. A.
Author Affiliations:Primary:
Russian Academy of Sciences, Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Federation
Other:
Serbian Academy of Sciences and Arts, Yugoslavia
VSEGEI, Russian Federation
Volume Title:Ofioliti
Source:Ofioliti, 31(2), p.223-224. Publisher: Pitagora Editrice, Bologna, Italy. ISSN: 0391-2612
Publication Date:2006
Note:In English. 7 refs.
Summary:A complex petrological, geochemical and geochronological investigation of five gabbros and one associated diabase dyke in the eastern part of the Deli Jovan Massif, east Serbia, has shown that the dates of the gabbros occupy a narrow late Silurian-early Devonian interval (Sm-Nd mineral isochron age of 406 ± 24 Ma, U-Pb isotope dilution isochron age of 399.7 ± 5.2 Ma, U-Pb SHRIMP zircon age 405.0 ± 2.6 Ma). Nd and Sr isotopic ratios indicate a strongly depleted mantle source. Two of the gabbros show a clear overprint of prograde regional metamorphism at upper greenschist facies (T ∼400-500°C) at an age of 261 ± 19 Ma (lower intercept of discordant zircons). It is concluded that the Balkan-Carpathian ophiolite represents a suture line between Thracian and Balkan terranes. A complex geological history is revealed. [this paper was published as an extended abstract only] [J.G.M.]
Sections:Age determination; Geochemistry; Petrology
Subsections:Igneous rocks; Oceanic petrology
Subjects:Absolute age; Chemical composition; Chemical ratios; Dates; Gabbros; Geochemistry; Igneous rocks; Ion probe data; Isotope ratios; Isotopes; Magmatism; Mass spectra; Metals; Nd-144/Nd-143; Neodymium; Nesosilicates; Ophiolite; Ophiolite complexes; Orogeny; Orthosilicates; P-T conditions; Paleozoic; Permian; Petrography; Plutonic rocks; Rare earths; SHRIMP data; Silicates; Spectra; Stable isotopes; Trace elements; U/Pb; Variscan Orogeny; Zircon; Zircon group; Balkan Peninsula; Bulgaria; Europe; Serbia; Southern Europe; Deli Jovan Massif; Tcherni Vrach Massif
Abstract Numbers:08M/0863
Record ID:2007042878
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United Kingdom, Twickenham, United Kingdom
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