A5091211694- Geological and Geochemical Analysis
- High-pressure geophysics and materials
- earthquake and tectonic studies
- Geochemistry and Geologic Mapping
- Geology and Paleoclimatology Research
- Hydrocarbon exploration and reservoir analysis
- Paleontology and Stratigraphy of Fossils
- Geological Studies and Exploration
- Tunneling and Rock Mechanics
- Marine and environmental studies
- Isotope Analysis in Ecology
- Methane Hydrates and Related Phenomena
- Radioactive contamination and transfer
- Geological Formations and Processes Exploration
Kocaeli Üniversitesi
2009-2023
Durham University
2000
Abstract Analyzing subduction initiation is key for understanding the coupling between plate tectonics and underlying mantle. Here we focus on suprasubduction zone (SSZ) ophiolites how their formation links to intraoceanic in an absolute motion frame. SSZ form majority of exposed oceanic lithosphere fragments are widely recognized have formed during initiation. Structural, petrological, geochemical, kinematic constraints evolution show that crust forms at fore‐arc spreading centers expense a...
Abstract The Late Triassic to Cretaceous age mafic lavas from the Neotethyan suture zone ophiolites in western Turkey exhibit a wide diversity of geochemical signatures, indicating derivation extremely heterogeneous mantle sources. rocks as whole can be divided into three broad subdivisions based on their bulk-rock characteristics: (1) mid-ocean ridge basalts (MORB) that range composition light rare earth element (LREE)-depleted varieties (N-MORB; (La/Sm) N <1) through transitional MORB...
Abstract Extensive magmatic activity followed major plate convergence and Eocene continent-arc collision in northwest Anatolia, Turkey. This produced a considerable volume of eruptive products, as well large proportion plutonic bodies along the suture zone. The main Anatolia are exposed Armutlu, Kapidag, Lapseki peninsulas where they form an E-W trending belt that comprises three individual intrusive suites. intrude Paleozoic—Mesozoic metamorphic basement rocks overthrust by Upper...
Abstract The alkaline volcanic province of Western Anatolia is characterized by intra-continental plate alkali olivine basalts and basanites extruded along localized extensional basins during Late Miocene (<11 Ma) to Quaternary (>0.13 time. rocks are low 87Sr/86Sr (0.70311-0.70325) high 143Nd/144Nd (0.51293-0.51298) ratios; they have OIB-like trace-element patterns enrichment in LILE, HFSE, L-MREE, a slight depletion HREE relative N-MORB. Trace-element modeling indicates that the mafic...
A number of intra-continental alkaline volcanic sequences in NW Turkey were emplaced along localized extensional gaps within dextral strike-slip fault zones prior to the initiation North Anatolian Fault Zone. This study presents new palaeomagnetic and 40 Ar– 39 Ar geochronological results from lava flows as a contribution towards understanding Neogene–Quaternary tectonic evolution region possible roles block rotations kinematic history region. analyses basalt groundmass indicate that major...
A number of sedimentary basins formed within the Tauride–Anatolide Platform Anatolia during Late Cretaceous–Tertiary period. Previous studies have proposed different tectonic and evolutionary models for each basin. Geological characteristics basins, however, suggest that all these are same origin they followed a similar model to one another. Basin development took place in post-collisional environment following northward subduction northern Neotethys ocean beneath Pontides. The closure ended...
Ophiolites exposed across the western Tauride Belt in SW Turkey represent tectonically emplaced fragments of oceanic lithosphere incorporated into continental margin following closure Neotethys Ocean during Late Cretaceous. The mantle sections ophiolites contain peridotites with diverse suites geochemical signatures indicative residual origin by melt depletion both mid‐ocean ridge (MOR) and supra‐subduction zone (SSZ) settings. This study uses a laser‐ablation inductively‐coupled plasma‐mass...
Abstract Platinum-group-element (PGE) studies of peridotites from the supra-subduction zone (SSZ) ophiolites northwest Anatolia provide evidence for nature melt extraction within uppermost mantle, and interactions between subduction-related magma oceanic lithosphere. The peridotite samples mantle section are mainly spinel-harzburgites dunites, accompanied by subordinate amounts spinel-lherzolite. Whole-rock major-trace element mineral chemical characteristics indicate that originated as...
Ultramafic xenoliths entrained in the late Miocene alkali basalts and basanites from NW Turkey include refractory spinel-harzburgites dunites accompanied by subordinate spinel-lherzolites. Whole-rock major trace element characteristics indicate that are mostly solid residues of varying degrees partial melting (∼4–∼15%), but some have geochemical signatures reflecting processes melt/rock interaction. Mantle-normalized patterns for peridotites vary LREE-depleted to strongly LREE-enriched,...
This paper presents the preliminary results regarding lithostratigraphy, petrography and petrology of James Ross Island Volcanic Group dominating Lachman Crags Cape lava-fed deltas in Ulu Peninsula, north-eastern Antarctic Peninsula. Studied were produced via Late Miocene to Pleistocene sub-marine sub-glacial volcanism made up four main lithofacies: a- bottomset pillow lavas, peperites associated volcanoclastic/siliciclastic deposits; b- foreset-bedded hyaloclastite breccias; c- intrusions...
The presence of a subduction signature with variable isotopic patterns in the melt products mantle origin within Aegean–Anatolian domain reflects differential effects slab‐derived material on chemical composition supraslab region. Here, we use Sr–Nd–Pb compositions and major trace element abundances to evaluate characteristics source components possible roles fluid/melt metasomatism genesis Middle Late Miocene mafic–intermediate lavas from Söke Basin western Anatolia. This volcanic suite...
Abstract We present constraints on the hydration state and rheology of lithospheric mantle beneath North Anatolian fault zone (NAFZ). Peridotite xenoliths from Biyikali Çorlu volcanic centers record deformational microstructures consistent with shearing in a lithosphere‐scale transcurrent system. Analysis by Fourier transform infrared spectroscopy indicates that nominally anhydrous phases retain some OH − , but bulk rock concentrations are generally restricted to <50 ppm H 2 O weight....
Abstract Late Miocene to Pleistocene alkaline lavas in the northernmost part of Antarctic Peninsula and its off-lying islands are latest stage magmatic activity that took place response lithospheric extension back-arc region South Shetland subduction system. The magmatism occurred much later than main pulse Cretaceous arc generated basaltic extrusive rocks during several sub-aqueous/sub-glacial sub-aerial eruption periods. suite consists primarily alkali olivine basalts with oceanic island...