2007
DOI: 10.12681/bgsg.16742
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Plagiogranitic Rocks of Evros Ophiolite, Ne Greece

Abstract: Dykes or small stocks of plagiogranitic rocL· occur below the extrusive sequence and in mutually interpenetrating association with the sheeted dyke complex of the Evros Ophiolite, NE Greece. They are classified as tonalités, low silica trondhjemites (LST) and high silica trondhjemites (HST

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Cited by 6 publications
(6 citation statements)
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“…Plagiogranite samples fall in the ORG field (Fig. 8c), overlapping the field of supra-subduction type Troodos plagiogranites, and plot close to Guevgueli trondhjemites and plagiogranite samples reported by Magganas (2007).
Figure 8.Trace element discrimination diagrams for the plutonic rocks and mafic dykes.
…”
Section: Tectonic Setting Discriminationsupporting
confidence: 76%
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“…Plagiogranite samples fall in the ORG field (Fig. 8c), overlapping the field of supra-subduction type Troodos plagiogranites, and plot close to Guevgueli trondhjemites and plagiogranite samples reported by Magganas (2007).
Figure 8.Trace element discrimination diagrams for the plutonic rocks and mafic dykes.
…”
Section: Tectonic Setting Discriminationsupporting
confidence: 76%
“…Similarly, the petrology of analogous arc-related extrusive rocks in the Eastern Bulgarian Rhodope further supported their origin and tectono-magmatic setting (Bonev & Stampfli, 2008). In contrast, the only data available on the age, petrology and geochemistry of the intrusive section of the Evros ophiolites refer to the Middle Jurassic Petrota gabbros and associated leucocratic dykes (Biggazzi et al 1989;Frass et al 1990) or have been recently communicated (Bonev & Stampfli, 2005;Koglin et al 2007;Magganas, 2007). The lack of data on the intrusive rocks makes it difficult to establish the extent of the tectono-magmatic section and thus the significance of these ophiolites.…”
Section: Introductionmentioning
confidence: 89%
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“…9b) reveals enrichment of Large Ion Lithophile Elements (LILE) over High Field Strength Elements (HFSE). The most striking feature of the diagram is the depletion of Nb, Ti and P. These negative anomalies are likely to be related Cocherie (1978) and Magganas (2007). ORG -ocean ridge granite, VAG -volcanic arc granite, WPG -within plate granite, syn-COLG -syn-collisional granite.…”
Section: Whole Rock Geochemistrymentioning
confidence: 97%
“…Gabbroic rocks of subduction zone having ophiolite affinity might be the result of their formation in arc/back arc setting where extensional tectonism caused fracturing and dyke activity. Tholeiitic and boninitic dykes are common in many of ophiolite complexes of arc setting where they are considered as supra-subduction assemblage in marginal basin volcanic arc setting (Frass et al 1990;Magganas et al 1991;Magganas 2002Magganas , 2007Stampfli 2005, 2008).…”
Section: Introductionmentioning
confidence: 99%