M-atilla ÇAĞLAYAN, Metin ŞENGÜN, Ayhan YURTSEVER

Progressive Britle-Ductile Deformation DM the Demirköy Pluton of the Strandjha Massive of Thrace-Turkey

Demirköy pluton, a Lower Cretaceous granitic body of the Strandjha massive of Thrace-Turkey, vary compositionally from a syeno-granite to quartz-diorite. The periphery of the granite has been converted to mortar gneiss and mylonite gneiss/schist. The host rocks, where they are of a pelitic origin, have been transformed into foliated contact schists comprising cordierite and andalusite. The intensity of shear shows a progressive diminution avvay from the periphery. The brittle-ductile deformation is ascribed to the emplacement of the granite causing multistage developments of multidirectional cleavage, king type folding and shear pods that are observable in macroscopic and microscopic dimensions. The deformation is not attributed to large displacements, but is rather interpreted as the cumulative result of en echelon shearing.

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ISSN: 0026-4563
Yayın Aralığı: Yılda 3 Sayı
Başlangıç: 1950
Yayıncı: Cahit DÖNMEZ

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