The Tectono – Statigraphy of The Bozyazı (Mersin) and of The Area North

Ahmet TURAN

Abstract


Schisty rocks known as Alanya metamorphics and Alanya Unit, taking place in the
Taurides belt, is the base in Bozyazı area. In the lower part of these schisty rocks, the Sugözü Nappe,
having high-pressure metamorphism, takes place. The Sugözü Unit, which completed its formation
in Late Cretaceous, includes interlayered metaquarzite and marble and garnet mica schist, amphibole
schist, phyllite and blocks of marble, recristallised limestone, metagabbro, metadiabase, and
metaserpentinite blocks. The upper metamorphic part of the area is the Yumrudağı Nappe, which is
metamorphosed by green schist facies. The Permian aged Cebelireis formation, consisting of marbles
and recrystallised carbonates with interlayered chalk schist-mica schist is the lower part of the
Yumrudağı Nappe. These metamorphic nappes are coverd with unconformity with flyschoids
having the lowest metamorphism. These Late Paleocene-Eocene age flyschoids include conglomerate-sandstone-mudstone-marl-clayey limestone.
On the above mentioned Alanya Unit is Hadim Nappe or Aladağ Unit with an important tectonic
contact. The Hadim Nappe has reefal limestone lenses with quartzite and shale as the lowest part

This sequence is covered conconformeably with rich interbedded fossiliferous limestone and
quartzite carboniferous rocks. The Lower Permian sequence, consisting of oncholitic limestones,
covers the carboniferous rocks conconformeably. Upper Permian sequence, including dark grey
algaeous limestone with little amount of interbedded quartzite and shale, covers the Lower Permian
sequence with disconformity. The Triassic rocks, which include recristallized limestone, marl, shale,
and sandstone, take place on the Upper Permian unit conformeably. Early-Middle Jurassic age
continental detritics, which consist of red-brown conglomerate-sandstone-mudstone, cover with
uncorformity the Triassic and pre-Triassic units of the area. The Jurassic age sub-continental
sediments, which consist of variegated mudstones and marls, are conformeable with lower
continental unit. The Jurassic-Early Cretaceous thick carbonate sequence, which consist of dolomite,
dolomitic limestone, and limestone; passes vertically and laterally with above mentioned continental
and sub-continental sediments. This sequence is the uppermost litostratigraphic unit of Hadim
Nappe. The whole diagenetic formations of the area are covered with unconformity by Quaternary
aged talus and alluviums.


Keywords


Stratigraphy; Alanya metamorphics; Hadim Nappe; from Devonian to Cretaceous sequences.

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