Palynostratigraphic and palynofacies investigation of the oligocene-miocene units in the Kars-Erzurum-Muş sub-basins(Eastern Anatolia)

Sancay, Recep Hayrettin
Eleven dinoflagellates, acritarchs, and pollen biozones have been identified in Upper Eocene to Pliocene sediments combined from Muş, Tekman, Tercan-Aşkale, Pasinler-Horasan basins and the Bayburt-Kars Plateau in this study. FAD̕s of Compositae (tubuliflorae type), Slowakipollenites hipophäeoides, Mediocolpopollis compactus, Monoporopollenites gramineoides and Umbelliferae at the base of Rupelian, FAD of Wetzeliella gochtii in the أmiddleؤ Rupelian, LAD of Ascostomocystis potane in the late Rupelian, LAD of Wetzeliella gochtii in the أlatestؤ Rupelian, LAD of Deflandrea spp. in the latest Chattian, peak occurrences of Chriptoredium spp. in the early and late Aquitanian, FAD of Hystrichosphaeropsis obscura, followed by FAD of Membranilarnacea ?picena in the late Aquitanian should have particular emphasis for palynostratigraphic divisions in regional correlations and indicate that a continuous deposition took place in Eastern Anatolia from Late Eocene to the end of the Early Miocene. A relatively deeper marine deposition prevailed during the Late Eocene, which was followed by a shallowing-upward deposition during the Oligocene in Muş, Tekman, Tercan-Aşkale, and Pasinler-Horasan basins. These basins were also characterized by an Early Miocene regional transgression, and terrestrial (lacustrine and fluvial) deposition during the Late Miocene-Pliocene whereas terrestrial conditions have been predominating since Late Eocene in the Bayburt-Kars Plateau. Paleoclimatological reconstructions of Eastern Anatolian Oligocene-Miocene sediments suggest temperate to subtropical climates in which mean annual temperatures vary between 15,6 to 21,3 °C, mean temperatures of the coldest and the warmest month are 5.0 to 13.3 °C and 24.7 to 28.1 °C, respectively, and mean annual precipitation is 1122.0 to 1522.0 mm.


Micropaleontological analysis and facies evolution across the tournaisian-visean boundary in aladağ unit(Central Taurides, Turkey)
Peynircioğlu, Ali Ahmet; Altıner, Demir; Department of Geological Engineering (2005)
This study aims to enlighten microfacies evolution and micropaleontological properties of the Tournaisian ا Visean boundary in Aladağ Unit (Central Taurides, Turkey). Two sections comprising dark shale and dark limestone alternations, including a fairly dolomitized part towards their top are measured. The microfacies analysis suggests a subtidal depositional environment. Foraminiferal assemblages were distinguished at Section AP and biozonation was documented. The biozonation separates the measured section ...
OZILGEN, S; OZILGEN, M; REID, DS (Elsevier BV, 1994-01-01)
Homogeneous and heterogeneous nucleation rates of ice in aqueous systems are described in the literature with the equation J = A exp (B tau). There are a very large number of published data available for variation of the constants A and B with experimental conditions. Results of this study show that the parameters obtained in the experiments with differential scanning calorimeter and the microscopic technique may be described separately with an empirical compensation equation of the form In A = aB + b. The ...
Rheological characterization of tahin/pekmez (sesame paste/concentrated grape juice) blends
Arslan, Elif; Esin, Ali; Yener, Esra; Department of Food Engineering (2003)
The aim of this study was to determine the rheological properties of tahin/pekmez blends at different tahin concentrations (20-32%) and temperatures (35-65 C) by using a concentric cylinder rotational viscometer. Samples were sheared with seven different rotational speeds at an increasing order. The shear rates (0.75-63.9 s-1) were calculated by the Power-law Approximation method. Tahin/pekmez blends were found to exhibit non-Newtonian, shear thinning behavior at all temperatures and tahin concentrations. T...
Campanian-Maastrichtian planktonic foraminiferal investigation and biostratigraphy (Kokaksu section, Bartın, NW Anatolia) : remarks on the cretaceous paleoceanography based on quantitative data
Güray, Alev; Altıner, Sevinç; Department of Geological Engineering (2006)
The aim of this study is to delineate the Campanian-Maastrichtian boundary by using planktonic foraminifers. In this manner, Kokaksu Section (Bartın, NW Anatolia) was selected and the Akveren Formation, characterized by a calciturbiditic-clayey limestone and marl intercalation of Campanian-Maastrichtian age, was examined. 59 samples were emphasized for position of boundary. Late Campanian-Maastrichtian planktonic foraminifers were studied in thin section and by washed samples. Two different biostratigraphic...
Scalar mesons in radiative phi-meson decays into charged k-meson states
Öztürk, Fahri; Gökalp, Ahmet; Department of Physics (2008)
The role of $f_{0}(980)$ and $a_{0}(980)$ scalar meson intermediate states in the mechanism of radiative $\phi (1020)$ meson decay into two charged $K (494)$ mesons and a photon $\phi\rightarrow K^{+} + K^{-} + \gamma$ is investigated. For the contribution of scalar meson intermediate state two models are considered. In the kaon-loop model, the scalar meson intermediate state couples the final state to the initial $\phi$ meson through a charged kaon-loop. The second model, called no-structure model, consist...
Citation Formats
R. H. Sancay, “Palynostratigraphic and palynofacies investigation of the oligocene-miocene units in the Kars-Erzurum-Muş sub-basins(Eastern Anatolia),” Ph.D. - Doctoral Program, Middle East Technical University, 2005.