New Petrological Data from the Western Termination of East Anatolian Accretionary Complex EAAC Eastern Turkey

Aktağ, Alican
Sançar, Taylan
Önal, Ali
Çimen, Okay
Geodynamic characteristics of the East Anatolian Accretionary Complex (EAAC) have been one of the major research topic for last a few decades. The models hitherto try to interpret the role of Teritiary volcanism in EAAC were not wealthy, due to the few geochemical, isotopic and radiometric age data. Furthermore, since boundary of EAAC is delimited by geophysical methods, discussion about relationship between EAAC volcanism and other volcanics, which is close proximity with EAAC, is not sufficiently examined. To provide new data, this study focused to western termination -Tunceli Teritiary volcanic rocks- of EAAC. The most important reason for this target is the lack of analytical studies and insufficient data about petrographic-petrologic characteristics of the Tunceli Teritiary volcanic rocks. Volcanic rocks of these study area classified into two main groups; Lavas and Pyroclastics. Lavas include only basalts in the study area. Pyroclastics rocks consist of tuff, lapilli tuff and blocks. According to petrographical studies, basalts include three main minerals; plagioclase, olivine and clinopyroxene. Pyroclastic rocks formed by andesitic and basaltic clasts. In the study area the most dominant textures of the lavas are porphyritic and intergranular textures. Almost all of the volcanic rocks have suffered alterations which gave rise to the formation of secondary minerals such as sericite, serpentine and iddingsite. According to the petrochemical evidences, the characters of magma are identified into two series; alkaline and calc-alkaline. Some of the samples have a tendency to potassium enrichment; probably these results indicate a crustal contamination. Major and trace element analysis of thirty samples, revealed the volcanic arc and WIP characteristics of Tunceli volcanic rocks. According to the N-type MORB normalized trace element diagrams, these volcanic rocks are enriched by LIL elements while HFS elements are relative depleted. In addition, negative Nb and Ti anomalies indicate that this situation have resulted from subduction-related events or crustal contamination. All in all, these data clearly indicate that volcanic rocks in Tunceli have great correlation with Teritiary volcanic rocks of EAAC. Ongoing isotopes and age determination studies will be more starkly put forward the relationship between volcanic rocks of EAAC and Tunceli.
EGU General Assembly, 7 - 12 Nisan 2013


An Analysis of geographic and sectoral diversification using city and sector indices of Turkey
Ayan, Hamdi; Soytaş, Uğur; Oran, Adil; Department of Business Administration (2015)
This thesis examines the potentials of geographic and sectoral diversification in Turkey. A Causality in variance test suggested by Hafner and Herwartz is conducted in a pairwise fashion among city indices and among sector indices, separately, to explore the existence of diversification potential. All data are 5-day week daily time series and sourced from Borsa Istanbul. City index data covers the period January 2, 2009 between November 24, 2014, whereas sectoral index data covers the period April 1, 2004 a...
An analysis of the Pan-European transport network
Doğan, Torgay; Türkeş, Mustafa; Department of European Studies (2005)
This thesis analyses the process of the creation of the Pan-European Transport Network connecting the European Union with the neighbouring regions and Caucasus and Central Asia in the long run. The thesis focuses on the incentives in establishing a continental transport network stemming from the nature of the capitalist relations between market and national and supranational forces in the margins of the global economy. In this context, the parallel processes of the acceleration of the European integration a...
New zircon U-Pb LA-ICP-MS ages and Hf isotope data from the Central Pontides (Turkey): Geological and geodynamic constraints
ÇİMEN, OKAY; Göncüoğlu, Mehmet Cemal; Simonetti, Antonio; Sayıt, Kaan (2018-05-01)
The Central Pontides in northern Anatolia is located on the accretionary complex formed by the closure of Neotethyan Intra-Pontide Ocean between the southern Eurasian margin (Istanbul-Zonguldak Terrane) and the Cimmerian Sakarya Composite Terrane. Among other components of the oceanic lithosphere, it comprises not yet well-dated felsic igneous rocks formed in arc-basin as well as continent margin settings. In-situ U-Pb age results for zircons from the arc-basin system (tiangaldag Metamorphic Complex) and th...
Novel insights on demographic history of tribal and caste groups from West Maharashtra (India) using genome-wide data
Debortoli, Guilherme; Abbatangelo, Cristina; Ceballos, Francisco; Fortes-Lima, Cesar; Norton, Heather L.; Ozarkar, Shantanu; Parra, Esteban J.; Jonnalagadda, Manjari (Springer Science and Business Media LLC, 2020-6-22)
The South Asian subcontinent is characterized by a complex history of human migrations and population interactions. In this study, we used genome-wide data to provide novel insights on the demographic history and population relationships of six Indo-European populations from the Indian State of West Maharashtra. The samples correspond to two castes (Deshastha Brahmins and Kunbi Marathas) and four tribal groups (Kokana, Warli, Bhil and Pawara). We show that tribal groups have had much smaller effective popul...
The relationship between Kestel Polje system and the Antalya Tufa Plateau: Their morphotectonic evolution in Isparta Angle, Antalya-Turkey
DOĞAN, UĞUR; Kocyigit, Ali; Yeilyurt, Serdar (Elsevier BV, 2019-06-01)
This paper focuses on the relation between two significant geomorphic features of the western Taurides: the Antalya Tufa Plateau and the structural Kestel polje system; revealing morphotectonic records of the formation and evolution of karst hydrology between the two features. Data were obtained by detailed mapping of faults, rocks, and geomorphic features. The evolutionary history of the area begins with a nearly E-W-trending drainage system which flowed on the erosional surfaces formed during late Langhia...
Citation Formats
A. Aktağ, T. Sançar, A. Önal, and O. Çimen, “New Petrological Data from the Western Termination of East Anatolian Accretionary Complex EAAC Eastern Turkey,” presented at the EGU General Assembly, 7 - 12 Nisan 2013, Viyana, Avusturya, 2014, Accessed: 00, 2021. [Online]. Available: