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The Bursa–Gönen Depression, NW Turkey: a complex basin developed on the North Anatolian Fault

Published online by Cambridge University Press:  06 March 2013

H. HALUK SELİM  and
OKAN TÜYSÜZ
H. HALUK SELİM*
Affiliation:
Istanbul Commerce University, Department of Jewellery Engineering, Istanbul 34840, Turkey
OKAN TÜYSÜZ
Affiliation:
Istanbul Technical University, Eurasia Institute of Earth Sciences, Istanbul 34469, Turkey
*
†Author for correspondence: hselim@iticu.edu.tr
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Abstract

In this study, we show that the southern branch of the North Anatolian Fault has been active since Late Pliocene time and that evidence of activity is supported by geological and seismological data. The southern branch of the North Anatolian Fault consists of four segments from west to east: Yenice–Gönen, Manyas–Mustafakemalpaşa, Uluabat and Bursa. These faults delimit the Bursa–Gönen Depression, with the Bandırma–Mudanya Uplift to the north and Uludağ–Sularya Uplift to the south. The Bursa–Gönen Depression includes Upper Pliocene to Recent sediments that thicken to the south, suggesting a deposition pattern under active fault control. Study of fault kinematics suggests that the Bursa–Gönen Depression started as a small pull-apart basin during Late Pliocene time, and then evolved to a large depression. The faults delimiting this depression are still active and capable of producing future earthquakes.

Keywords

Southern Marmara sub-regionNorth Anatolian Faultstrike-slip faultBursa–Gönen Depression
Type
Original Articles
Information
Geological Magazine , Volume 150 , Issue 5 , September 2013 , pp. 801 - 821
Copyright
Copyright © Cambridge University Press 2013 

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