Petrogenesis of the Late Cenozoic Egrigoz pluton in western Anatolia, Turkey: implications for magma genesis and crustal processes


Ozgenc I., Ilbeyli N.

INTERNATIONAL GEOLOGY REVIEW, vol.50, no.4, pp.375-391, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 4
  • Publication Date: 2008
  • Doi Number: 10.2747/0020-6814.50.4.375
  • Journal Name: INTERNATIONAL GEOLOGY REVIEW
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.375-391
  • Dokuz Eylül University Affiliated: Yes

Abstract

The western Anatolian magmatic province is typified by a large number of Late Cenozoic post-collisional granitoids. Of these magmatics, the Egrigoz pluton is one of the largest and least-understood plutons in the Menderes Massif. The Egrigoz intrusives are subalkaline, high-K, and calc-alkaline, and have characteristics of I-type granites. They consist mainly of granodiorite and granite. The intrusive rocks show enrichment in LILE and LREE relative to HFSE. Their chondrit-enormalized REE patterns are fractionated and have small negative Eu anomalies. Geochemical characteristics of the Egrigoz pluton indicate an origin through partial melting of mafic lower-crustal source rocks. In western Anatolia, the melt generation mechanism for the intrusive rocks could be crustal extension and uplift following collision.