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| Titel |
The junction of Hellenic and Cyprus arcs: a detailed study of the morphology and Neogene tectonic evolution of the Anaximander Mountains |
| VerfasserIn |
J. Cranshaw, A. Aksu, J. Hall, G. Çifçi, D. Dondurur, C. Yaltırak |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250023329
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| Zusammenfassung |
| The Anaximander Mountains are enigmatic highs located at the complex corner that links the
Cyprus and Hellenic Arcs in the eastern Mediterranean. They are made up of several different
highs: Anaximander (sensu stricto), Anaxagoras and Anaximenes. Previous work had shown
that rock samples from the Anaximander Mountain have affinity with rocks exposed on land
nearby in southern Turkey. This had been explained by rifting of the Mountain
away from Turkey. In contrast to that, our interpretation of around 1750 km of
high-resolution multi-channel seismic reflection data acquired in 2001 showed that
Anaximander Mountain is part of a broadly south-verging Miocene thrust system
associated with relative southward motion of the Tauride Mountains in southern Turkey.
Post-Miocene motion also involves thrusting but is accompanied by transpression and
rotation.
The 3-dimensional nature of the geology makes mapping of the linkage of structures
difficult, so we collected an additional 500 km of multi-channel seismic reflection data
acquired in 2007, extending our 2001 survey further southwards into the Mediterranean
Ridge. These new profiles are shot in a grid oblique to that obtained in 2001, such that the
new profile intersections provide a basis for better correlation of the earlier data. We are
testing our earlier interpretation through processing and interpretation of these new profiles.
Here, we present examples of the new profiles and give first indications of how our earlier
interpretation is broadly corroborated by the new data, but with minor adjustments.
Anaximenes Mountain is imaged to the south of our previously-mapped area and is
characterized as a large south-verging thrust lifting pre-Messinian strata by up to 2 km in a
12-km wide pop-up structure. Internally, Anaximenes is dissected by several splays from the
bounding thrusts. |
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