Abstract
The Lycian Nappes contain slices of ophiolites and sedimentary rocks of various ages that crop out in SW Turkey. They evolved and were emplaced under the effect of the Late Cretaceous-Miocene compressional regime. The Tavas Nappe is part of the Lycian Nappes and contains Jurassic-Eocene sediments. The Babadağ Formation, forming the middle part of the Tavas Nappe, is composed of limestone at the base and various sized calciturbidites with chert intercalations in the upper part. The Standard Microfacies Classification (SMF of FLÜGEL, 2004) indicates that the entire unit was deposited mainly in a deep-shelf environment (Facies Zone – FZ-2), deep-sea (FZ-1), toe of slope (FZ-3) and on the continental slope (FZ-4). Calcite and quartz dominate the bulk mineralogy of the calciturbidites with higher SiO2 and CaO weight percentages than other major oxides. Additionally, the presence of Na2O, K2O, Al2O3, MgO, TiO2 and Fe2O3 is associated with the local sediment input. Tectonism and sea level fluctuations were the main triggering factors of the changes in the original depositional environment of the Babadağ Formation. Additionally, grain size and the amount of sediment input control the calciturbidite type and extension. Si enriched water circulation and Si and Ca substitution were responsible for the abundant chert formation during diagenesis of the units. Post depositional tectonic activities during transportation and emplacement of the nappes resulted in calcite filled cracks that cut both the calciturbidites and cherts. Study of the different nappe slices provides valuable information about syn- and post- depositional changes of the lithostratigraphic units.
Highlights
Calciturbidites occur in various sedimentary environments such as continental slopes, toe of slope and single or multiple feeding submarine fans (WATTS, 1987; RUBERT et al, 2012; HAIRA BIAN et al, 2015)
Calciturbidites are generally characterized by poor sorting, local inverse grading, diagenetic micritic layers embedded in the base and nodular silica layering (EBERLI, 1991)
The sedimentation in carbo nate gravity systems is controlled by sea level fluctuations, source region, regional basin tectonics and slope characteristics (e.g., EBERLI, 1991; PAYROS & PUJALTE, 2008)
Summary
Calciturbidites occur in various sedimentary environments such as continental slopes, toe of slope and single or multiple feeding submarine fans (WATTS, 1987; RUBERT et al, 2012; HAIRA BIAN et al, 2015). They can be associated with different parts of carbonate platforms and platform margins (REIJMER et al, 2015a, 2015b). The most important characteristic that distin guishes calciturbidites from siliciclastic deposits of the deep sea are the unique diagenetic process of dolomitization, silicification (chert layers or lenses) and micritization (EBERLI, 1991; RU BERT et al, 2012; GÜL, 2015). The sedimentation in carbo nate gravity systems is controlled by sea level fluctuations, source region, regional basin tectonics and slope characteristics (e.g., EBERLI, 1991; PAYROS & PUJALTE, 2008). REIJMER et al (2015a) emphasized that calciturbidites are of interest to the oil and gas industry because of their porous and permeable granular structure
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
