Abstract
Field studies on the Neogene successions in south of Izmir reveal that subsequent Neogene continental basins were developed in the region. Initially a vast lake basin was formed during the Early-Middle Miocene period. The lacustrine sediments underwent an approximately N-S shortening deformation to the end of Middle Miocene. A small portion of the basin fill was later trapped within the N-S trending, fault-bounded graben basin, the Çubukludaǧ graben, opened during the Late Miocene. Oblique-slip normal faults with minor sinistral displacement are formed possibly under N-S extensional regime, and controlled the sediment deposition. Following this the region suffered a phase of denudation which produced a regionwide erosional surface suggesting that the extension interrupted to the end of Late Miocene-Early Pliocene period. After this event the E-W trending major grabens and horsts of western Anatolia began to form. The graben bounding faults cut across the Upper Miocene-Pliocene lacustrine sediments and fragmented the erosional surface. The Çubukludaǧ graben began to work as a cross graben between the E-W grabens, since that period.
Original language | English |
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Pages (from-to) | 45-55 |
Number of pages | 11 |
Journal | Geodinamica Acta |
Volume | 14 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2001 |