LITHOSTRATIGRAPHY AND FACIES CHARACTERISTICS OF THE CONTINENTAL - SHALLOW - MARINE MIOCENE DEPOSITS (ZARA - SİVAS)

Year 2002, Volume: 125 Issue: 125, 58 - 59, 01.06.2002

Erdal Koşun Attila Çiner

Abstract

The and space
relationships of sedimentary environments and depositional evolution of Sivas Miocene
Basin is studied south of Zara town. 2 formations and 4 members are defined.
Early Miocene Ağılkaya formation (1900 m) is composed of Karayün member
(alluvial fan and fluvial deposits), Hafik member (sabkhaic gypsums) and
Karacaören member (shallow marine). On the other hand Early-Middle Miocene Eğribucak
formation (550 m) is only represented by Sekitarla member (fluvial deposits) in
this part of the basin. Facies analyses reveal 13 lithofacies representing
deposition in lagoon to shallow marine, tidal flat, playa and sabkha, alluvial
fan and fluvial environments. The currently debated and controversial relative
age of the Hafik member gypsum deposits is assigned to (?) Oligocene - Early
Miocene based on the stratigraphic relations observed throughout the basin.
Petrographic data together with North-Northwestern paleocurrent directions
indicate an ophiolithic source area situated to the South-Southeast of the
basin

Keywords

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