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Abstract
Chapter from:
AAPG Memoir 68:Regional and Petroleum Geology of the Black Sea and
Surrounding Region, Edited by A.G. Robinson
AAPG Memoir 68: Regional and Petroleum Geology of the Black Sea and
Surrounding Region. Chapter 5: Mesozoic Strike-Slip Back-Arc Basins of the Western Black Sea Region, by Chris J. Banks
and Andrew G. Robinson, Pages 53-62
Copyright © 1997 by The American Association of Petroleum Geologists. All
arights
reserved.
Chapter 5
Mesozoic Strike-Slip Back-Arc Basins of the Western Black Sea
Region
Chris J. BanksRoyal Holloway University of London
Egham, Surrey, United Kingdom
Andrew G. Robinson
JKX Oil & Gas plc
Guildford, United Kingdom
ABSTRACT
This chapter presents schematic reconstructions of the Black Sea
region in Triassic to Cretaceous time. The tectonic evolution of the region during this
time was controlled by the northward subduction of the Tethys oceanic plate. The ocean is
now closed at a suture extending from Romania to the Aegean and through the whole length
of northern Turkey to Iran. The overriding European plate was alternately subjected to
extensional and compressive deformation and arc magmatism, resulting in a zone of
considerable structural and stratigraphic complexity. The present Western Black Sea opened
in the mid-Cretaceous as the microplate comprising what is now the Western and Central
Pontides separated from the Moesian and Scythian platforms and moved southeast to leave an
oceanic back-arc basin behind it. We identify two regional strike-slip transfer fault
zones that constrained the movement of the Pontide microplate. Our restoration enables us
to recognize the Peceneaga-Camena fault and its extensions as a key tectonic
feature--another major transfer fault--in the earlier Triassic and Jurassic events. We
suggest that its displacement was sinistral in the Late Triassic-Early Jurassic, with
Moesia moving southeast, leaving an oceanic embayment now occupied by the Pannonian Basin.
This phase was generally transtensional, opening a string of back-arc basins in the Black
Sea area, which then closed in the Middle-Late Jurassic Cimmeride orogeny.
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