Özkan, Ali Müjdat2024-07-232024-07-232024978-625-367-700-8https://hdl.handle.net/20.500.13091/5916Cihandere Formation carbonates have a very important place in elucidating the redox sensitivity and sedimentation conditions of the Late Jurassic period. Therefore, this study aimed to determine the redox sensitivity and precipitation conditions of Cihandere carbonates. The material of this study consists of carbonaceous rocks of the Cihandere formation. The1/25,000 scale geological map used for field studies was modified and taken from Turan (1990). Two measured stratigraphic sections from the study area were made using Jacob rods and 27 rock samples were collected. Element ratios such as Fe/Al, V/Cr, V/(V+Ni), U/Th, Ni/Co, and (Cu+Mo)/Zn were used to determine the redox conditions of the Cihandere formation limestones. Sr/Cu and Rb/Sr ratios were used to determine the paleoclimate. Si/Al, K/Al, Ti/Al, and Zr/Al element ratios were used to determine the role of clastic/siliclastic sediment input. CIA and Mn/Sr values were used to determine the degree of weathering of Cihandere carbonates. Fe/Al values of Cihandere Formation dolostones vary between 0.35-14.5, and limestones vary between 0.085-0.883. V/Cr values of Cihandere Formation dolostones vary between 0.23-2.22, and limestones vary between 0.63-1.71. V/(V+Ni) values of Cihandere Formation dolostones vary between 0.57-0.94, and limestones vary between 0.65-0.67. Cu/Zn values of Cihandere Formation dolostones vary between 0.031-0.875, and limestones vary between 0.131-0.254. Sr/Cu values of Cihandere formation dolostones vary between 47.4-232.5, and limestones vary between 182.8-210.5. Rb/Sr values of Cihandere Formation dolostones vary between 0.0028-0.028, and limestones vary between 0.00045-0.00625. U/Th values of Cihandere Formation dolostones vary between 0.27-17, and limestones vary between 1.45-24. Ni/Co values of Cihandere Formation dolostones vary between 0.67-25, and limestones vary between 4.44-35. (Cu+Mo)/Zn values of Cihandere Formation dolostones vary between 0.039-1.07, and limestones vary between 0.17-0.36. Fe/Al values of Cihandere carbonates are <0.5 in two samples, indicating oxic conditions, and 10 samples are >0.5, indicating anoxic conditions. V/Cr values of Cihandere carbonates indicate an oxic environment as 11 samples are <2, and a dioxic environment since one sample is >2 and <4.25. V/(V+Ni) values of Cihandere carbonates, one sample >0.84 indicates an anoxic environment, 11 samples <0.84 and >0.54 indicate a dioxic environment. U/Th values of Cihandere carbonates indicate an anoxic environment as they are >1.25 in 8 samples, dioxic environment as they are > 0.75 and <1.25 in two samples, and oxic environment as they are <0.75 in two samples. Ni/Co values of Cihandere carbonates indicate oxic environment since 6 samples are <5, dioxic environment since one sample is >5 and <7, and anoxic environment since 5 samples are >7. (Cu+Mo)/Zn values of Cihandere carbonates are <2 in all samples, indicating an oxic environment. Therefore, we can say that the redox conditions during the deposition process of Cihandere carbonates were in oxic-dioxic-anoxic phases. Sr/Cu values of Cihandere carbonates are >5, indicating a hot and humid climate, while Rb/Sr values are <0.5, indicating an arid climate. Therefore, we can say that the arid and humid climate was repeated during the deposition of Cihandere carbonates.eninfo:eu-repo/semantics/openAccessCarbonateCihandereHadimPaleoclimateRedox-ConditionsConference Object