Geochemical characteristics of the main granitic intrusions of Greece; an application of trace element discrimination diagrams

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Authors:Baltatzis, E.; Esson, J.; Mitropoulos, P.
Author Affiliations:Primary:
University of Athens, Department of Geology, Athens, Greece
Other:
University of Manchester, United Kingdom
Volume Title:Mineralogical Magazine
Source:Mineralogical Magazine, 56( 4(385)), p.487-501. Publisher: Mineralogical Society, London, United Kingdom. ISSN: 0026-461X
Publication Date:1992
Note:In English. 40 refs.; 3 tables, geol. sketch map
Summary:Geochemical investigation of samples from 20 granitic intrusions in six tectonic zones of the Hellenides shows that both I-type and S-type granites occur in the region. The I-type granites from four of the zones, namely the Rhodope Massif (RM), the Serbomacedonian Massif (SMM), the Perirhodope Zone (PRZ) and the Attico-cycladic Zone (ACZ), show some systematic differences in their geochemistry. In particular, the Rb, Y, Nb, K and Ti contents increase in the sequence PRZ, SMM, RM and ACZ. The PRZ granites are of Jurassic age, those of the SMM and RM are Eocene to Oligocene and the ACZ ones are Miocene. The differences between zones are attributed to a combination of differences in partial melting and high-pressure fractionation processes. Geochemical differences within zones are explained by variable degrees of amphibole and apatite fractionation and accumulation.
Subjects:Chemical composition; Geochemistry; Granites; I-type granites; Igneous rocks; Intrusions; Partial melting; Plutonic rocks; S-type granites; Trace elements; Aegean Islands; Cyclades; Europe; Greece; Greek Aegean Islands; Mediterranean region; Rhodope Mountains; Serbo-Macedonian Massif; Southern Europe; Attico-Cycladic Zone; Fractionation; Perirhodope Zone
Abstract Numbers:93M/3019
Record ID:1996042880
Copyright Information:GeoRef, Copyright 2019 American Geosciences Institute. Abstract, Copyright, Mineralogical Society of Great Britain and Ireland
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