Geochemical constraints on the genesis of the Saricakaya intrusive rocks, Turkey: Late Paleozoic crustal melting in the central Sakarya Zone

Kibici Y., İLBEYLİ N., Yildiz A., Bagci M.

CHEMIE DER ERDE-GEOCHEMISTRY, cilt.70, sa.3, ss.243-256, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 70 Sayı: 3
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1016/j.chemer.2009.12.001
  • Dergi Adı: CHEMIE DER ERDE-GEOCHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.243-256
  • Anahtar Kelimeler: Anatolia, Central Sakarya, Saricakaya, I-type granite, Lower crust, Melting, CONTINENTAL GROWTH, NORTHWEST TURKEY, GRANITOIDS, SUBDUCTION, ANATOLIA, CLASSIFICATION, GEOCHRONOLOGY, EVOLUTION, DIAGRAMS, MAGMAS
  • Akdeniz Üniversitesi Adresli: Hayır

Özet

The Sakarya Zone is intruded by several Late Paleozoic granitoids, of which the Saricakaya intrusive rocks in the central Sakarya (Eskisehir) region, is the least-studied. The Saricakaya intrusive rocks consist mainly of quartz diorite-granodiorite, granodiorite and granite. They are, geochemically, divided into two groups: diorites and granites. The former is medium-K and calc-alkaline (mainly l-type), whereas the latter is high-K to shoshonite and calcic (I-type). Typical minerals for both rock types are plagioclase, K-feldspar, quartz, biotite, hornblende and Fe-Ti oxides. Chondrite-normalized REE patterns for the Saricakaya intrusive rocks are moderately fractionated and have small negative Eu anomalies. They are enriched in LILE and LREE relative to HFSE showing characteristics of arc-related granitoids. Geochemical characteristics of the Saricakaya intrusive rocks indicate a hybrid origin through partial melting of lower crustal source rocks. (C) 2010 Elsevier GmbH. All rights reserved.