SEDIMENTARY INFILL AND GEOLOGICAL EVOLUTION OF ÇAMELİ NEOGENE BASIN, DENİZLİ-SW TURKEY

Yıl 2004, Cilt: 128 Sayı: 128, 49 - 49, 01.09.2004

Mehmet Cihat Alçiçek Nizamettin Kazancı Mehmet Özkul Şevket Şen

Öz

Çameli basin is one
of the western Anatolian grabens formed during the neotectonic period. The basin
contains data which may enlighten neotectonic stage of the region due to its
setting and successions. Characteristics of the basin fill are determined by
the fades analysis and kev data related to time interval of the deposition are
provided by using mammalian faunas. NE-SW trended Çameli basin begins to open
as a graben under the control of the
Dirmil fault at the east and Bozdağ fault at the west during the Late Miocene
(10.8-8.5 Ma). Growth faults seen intensively in the preliminary sediments of
the basin composed of alluvial fan, river and lacustrine deposits point out an
effective extension. After this period, the basin is divided into two parts by
an intensive faulting at the Early-Middle Pliocene (3.8-3.2 Ma). Later, the
impression of extensional tectonics relatively decrease and the basin turn into
a large lacustrine environment. The lacustrine deposits overlap both fault that
separate the basin into two parts, and marginal faults and this stage continues
until Middle to Late Pliocene (3.5-2.5 Ma). While the lake basin become shallow
by filling of alluvial fan and river delta progradation. lacustrine carbonates
precipitate in the central part of the basin. After this stage the basin is
broken again in Late Pliocene (2.6-1.8 Ma) by two fault systems that are parallel
to marginal basin faults indicated with a travertine layer. The final deposits
of the basin are alluvial sediments deposited by this faulting stage. According
to the growth faults seen in the sediments accumulated after the latest
faulting stage, the extension has been reactivated and the Çameli basin more or
less has taken recent form.

Anahtar Kelimeler

Çameli, Neogene, graben infill, Neotectonics, facies analysis, southwest Turkey

Kaynakça

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