Geology and Tectonic Emplacement of Eclogite and Blueschists, Biga Peninsula, Northwest Turkey


ŞENGÜN F. , YİĞİTBAŞ E. , TUNÇ İ. O.

TURKISH JOURNAL OF EARTH SCIENCES, cilt.20, ss.273-285, 2011 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 20 Konu: 3
  • Basım Tarihi: 2011
  • Doi Numarası: 10.3906/yer-0912-75
  • Dergi Adı: TURKISH JOURNAL OF EARTH SCIENCES
  • Sayfa Sayıları: ss.273-285

Özet

The Biga Peninsula in northwestern Anatolia is a tectonic mosaic, comprising different tectonic units, representing the Sakarya Continent and oceanic assemblages of different origin and ages. The Camlica metamorphic association, a member of this orogenic mosaic in the westernmost part of the peninsula, is subdivided into three formations, from bottom to top; the Andiktasi formation, the Dedetepe formation, and the Salihler formation. Eclogite-facies metamorphic rocks occur as tectonic slices within schist-marble intercalations of the Dedetepe formation. These slices, about 2 km long and 500 m wide, include two different rock types; (i) quartz-mica schists, and (ii) metabasite lenses with eclogite/blueschist paragenesis. Foliation in the Dedetepe formation of the Camlica metamorphic association generally dips SW and strikes NW-SE around Dedetepe hill and Camlica village. In contrast, eclogite-facies metabasite slices strike NE-SW with NW-dipping foliation.