In November 2017, I conducted a fieldwork in Northern Cyprus with Pete McPhee, to reconstruct the shortening history associated with Africa-Europe collision in the Eastern Mediterranean region. We spent a week working on the fold-thrust belt that includes the narrow, high ridge on northern Cyprus known as the Kyrenia range. Below a photo impression of the trip.
Pete McPhee, PhD student at Utrecht University
The Kyrenia ranges comprise low-grade metamorphic marbles and greenschists overlain by Cretaceous to Miocene sediments, thrusted in Late Miocene time. The range is a spectacular, narrow ridge along the north coast of Cyprus
The ridge appears to be just a single thrust slice overlain by a complex stratigraphy. It’s only a few km from N to S, but more than 100 km long from E to W.
One of the aims of our structural exercise was to figure out why the dips are so steep. Here you see the top of the marble ridge, likely representing an upper Cretaceous extensional detachment surface along which the metamorphic rocks exhumed
Above the Cretaceous to Eocene stratigraphy of chalks and olistoliths, foreland basin clastics are found with an unconformable contact. Pete is standing on that contact.
To the south of the range, on Central Cyprus, lies the largest part of the fold-thrust belt, hidden in the bonedry, dusty landscape. It comprises clays and turbidites, unconformably overlain by non-tilted Messinian gypsum and deep-marine Pliocene rock
Here a well-exposed example of the steeply tilted Miocene turbiditic sequence
Me, measuring bedding
Me, standing in front of a deep-marine Pliocene marl-sapropel sequence
Interestingly, although previously unreported, the Kyrenia range contains an ophiolite sequence – or, rather, a serpentinite melange with oceanic crustal blocks and intrusions, and sediments derived therefrom. We found this in 2014 already, and a paper about it’s (supra-sudbuction zone) geochemistry will be submitted soon.
Me, on my way to a next bedding measurement
Traces of turbidites across the landscape south of the Kyrenia range
Panaia Apsinthiotissa, along the southern Kyrenia range, built right on the Dikmen thrust.
St Hilarion castle, built on a major olistolith in the Upper Cretaceous chalks
Probably the worst slogan of the island…
Harbor of Kyrenia, with the range in the distance