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The AAPG/Datapages Combined Publications Database

Journal of Petroleum Geology

Abstract

 

Journal of Petroleum Geology, vol. 19(4), October 1996, pp. 445-460
©Copyright 1996. Scientific Press, U.K. All rights reserved.

TECTONIC CONTROLS ON THE EVOLUTION OF POROSITY IN THE CRETACEOUS MARDIN GROUP CARBONATES, ADIYAMAN OILFIELDS, SE TURKEY

B. Coskun*

The mid-Cretaceous Mardin Group carbonates constitute the principal reservoir in a number of oilfields near the city of Adiyaman in SE Turkey (the Adiyaman, G. Adiyaman, Cemberlitas, Cukurtas, Bolukyayla and Karakus oilfields). Porosity development in these carbonates was controlled by two phases of brittle deformation. The first of these accompanied the emplacement of the allochthonous Kocali-Karadut Complex in the Late Cretaceous (Maastrichtian), which principally influenced the development of porosity in the northern oil fields. Subsequently, movement during the Mio-Pliocene on the transcurrent Adiyaman fault affected porosity development in the south.

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