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Book Chapter

Mesoscale folds and faults along a flank of a Syrian Arc monocline, discordant to the monocline trend

By
N. Joseph-Hai
N. Joseph-Hai
1
Department of Geology and Environmental Sciences
,
Ben Gurion University
,
Beer Sheva 84105
,
Israel
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;
Y. Eyal
Y. Eyal
1
Department of Geology and Environmental Sciences
,
Ben Gurion University
,
Beer Sheva 84105
,
Israel
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;
R. Weinberger
R. Weinberger
2
Geological Survey of Israel
,
30 Malkhe Yisrael Street, Jerusalem 95501
,
Israel
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Published:
January 01, 2010

Abstract

Orientations of folds and small faults were measured in Turonian and Senonian rocks along the western limb of the Ramallah monocline in Israel, one of the structures comprising the Syrian Arc fold belt (SAFB). The minority of the folds, aligned NNE–SSW, are compatible with the WNW–ESE shortening trend of the SAFB, whereas the majority of them, aligned ENE–WSW, are not compatible with this shortening trend. Kinematic analysis of faults’ attitude indicates NNW–SSE shortening and ENE–WSW extension in accordance with the shortening of the majority of folds. Based on the folds trends, scale, and geometry, as well as the associated fault kinematics, we conclude that the folding mechanism is tectonic shortening and not intraformational folding due to landsliding or collapse owing to karst activity as previously postulated. We propose that a minority of the folds, compatible with the major trend of the Ramallah monocline, are parasitic small folds within the SAFB. The majority of the folds, which are not compatible with the SAFB, were formed owing to NNW–SSE shortening that has been associated with Miocene to Recent movement along the Dead Sea Transform.

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Contents

Geological Society, London, Special Publications

Evolution of the Levant Margin and Western Arabia Platform since the Mesozoic

C. Homberg
C. Homberg
University Pierre et Marie Curie, France
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;
M. Bachmann
M. Bachmann
University of Bremen, Germany
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Geological Society of London
Volume
341
ISBN electronic:
9781862395893
Publication date:
January 01, 2010

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