Browsing by Author "Yılmaz, Yücel"
Now showing items 1-12 of 12
-
A short note on the geo-archeological significance of the ancient Theodosius harbour (Istanbul Turkey)
Authors:
Publisher and Date:(Academic Press Inc Elsevier Science, 2009)The sedimentary sequence discovered at archaeological excavations in ancient Theodosius Harbour at Istanbul contains the records of sea level environmental changes and the Cultural history of the region The cobbles at the base of the sequence include archaeological remnants of Neolithic Culture that settled in the at ea between 8.4 and 73 (14)C ka BP and are located at 6 m below the present sea level The sediments representing a coastal environment indicate that the area was used as a harbour from ...
-
Characteristics and geochemistry of Precambrian ophiolites and related volcanics from the Istanbul-Zonguldak Unit Northwestern Anatolia Turkey: following the missing chain of the Precambrian South European suture zone to the east
Authors:
Publisher and Date:(Elsevier Science Bv, 2004)The Precambrian metamorphic basement of the Istanbul-Zonguldak Unit (IZU) NW Anatolia Turkey is represented by the Sunnice Group composed essentially of four different metamorphic assemblages: (1) Cele metaophiolite (2) Yellice metavolcanics (3) Demirci metamorphics and (4) Dirgine metagranite. The field relations and structural characteristics of these units were studied and representative geochemical analyses of Cele metaophiolite and related volcanics were obtained from the Sunnice Almacik and ...
-
Development of an oblique subduction zone - Tectonic evolution of the tethys suture zone in southeast Turkey
Authors:
Publisher and Date:(V H Winston & Son Inc, 2003)The Southeast Anatolian orogen part of the Mediterraneari-Himalayan orogenic belt may be divided into three approximately E-W-trending zones. From south to north they are the Arabian platform an imbricated zone and a nappe zone. The eastern pail of the Arabian platform includes a lower Paleozoic to lower Miocene sedimentary sequence and ophiolitic rocks that were obducted on the platform during Late Cretaceous time. Also in the eastern part of the nappe zone consisting of lower and upper nappe ...
-
The Dikili-Çandarlı volcanics, western Turkey: Magmatic interactions as recorded by petrographic and geochemical features
Authors:
Publisher and Date:(Tübitak, 2007)Located in the northwestern part of the Aegean region, Dikili-Çandarl› volcanic suite contains products representative for the western Anatolian Miocene volcanism. They can be divided into two main groups: the Dikili and the Çandarl› groups. The Dikili group is Early–Middle Miocene in age and consists mainly of pyroclastic rocks, andesitic-dacitic lavas, lava breccia, lahar flows and associated sedimentary rocks. The lavas contain disequilibrium phenocrysts assemblages. The Çandarl› group ...
-
Holocene coastal change in the ancient harbor of Yenikapi-Istanbul and its impact on cultural history
Authors:
Publisher and Date:(Academic Press Inc Elsevier Science, 2011)An extensive rescue excavation has been conducted in the ancient harbor of Istanbul (Yenikapi) by the Sea of Marmara revealing a depositional sequence displaying clear evidence of transgression and coastal progradation during the Holocene. The basal layer of this sequence lies at 6 m below the present sea level and contains remains of a Neolithic settlement known to have been present in the area indicating that the sea level at similar to 8-9 cal ka BP was lower than 6 m below present. Sea level ...
-
IGCP 521: “Black Sea–Mediterranean Corridor during the last 30 ka: Sea level change and human adaptation”, Istanbul, 2005
Authors:
Publisher and Date:(Elsevier Ltd, 2007)
-
Morphotectonic development of the Marmara Region
Authors:
Publisher and Date:(Elsevier Science Bv, 2010)The Marmara Region of northwest Turkey covers the Marmara Sea Basin and the surrounding lands. In the region morphologically different areas may be distinguished. The Marmara Sea Basin is a structural depression. The land to the north is known as the Thrace-Kocaeli Peneplain a flatland elevated above a horst. This may be referred to as the Istanbul Horst bounded by two strike-slip fault zones which define the structural boundaries of two sea basins
-
Morphotectonic development of the southern Black Sea region and the Bosphorus channel
Authors:
Publisher and Date:(Springer Netherlands, 2007)The southern coast of the Black Sea is bounded by the east-west trending Pontides and Strandjas mountain ranges and between them flows the Bosphorus a narrow channel representing the only seaway connecting the Black Sea with the Aegean-Mediterranean system. All of these morphological entities are young formed during the Plio-Quaternary period. A major force in the formation of the Pontides has been north-south compression generated in eastern Anatolia by the progressive northward advance of the ...
-
Petrochemistry of the south Marmara granitoids northwest Anatolia Turkey
Authors:
Publisher and Date:(Springer, 2008)Post-collision magmatic rocks are common in the southern portion of the Marmara region (Kapidag Karabiga Gonen Yenice Can areas) and also on the small islands (Marmara Avsa Pasalimani) in the Sea of Marmara. They are represented mainly by granitic plutons stocks and sills within Triassic basement rocks. The granitoids have ages between Late Cretaceous and Miocene but mainly belong to two groups: Eocene in the north and Miocene in the south. The Miocene granitoids have associated volcanic rocks
-
Seismotectonics and geology of Troia and surrounding areas northwest Anatolia
Authors:
Publisher and Date:(Springer-Verlag Berlin, 2003)The Troia area and the surroundings in northwest Anatolia are located between two most active fault zones. These zones have developed under the influence of the north Anatolian fault system coupled with the Aegean N-S extension. These active fault systems have caused several severe earthquakes which damaged the Troia area. The morphology and geology of the region have evolved under strong tectonic control. Major morphological features of the region such as the gulfs of Saroz and Edremit the Canakkale ...
-
The geodynamics of the Aegean and Anatolia: Introduction
Authors:
Publisher and Date:(2007)
-
The Tectonic History of the Nide-Krehir Massif and the Taurides Since the Late Mesozoic: Paleomagnetic Evidence for Two-Phase Orogenic Curvature in Central Anatolia
Authors:
Publisher and Date:(Amer Geophysical Union, 2016)The Nide-Krehir Massif known also as the Central Anatolian Block is bordered by the sutures of the Neotethys Ocean. The massif suffered several deformation phases during and after the consumption of the surrounding oceans and the postcollisional events of the continental pieces of Anatolia in latest Cretaceous to Miocene. Previous paleomagnetic studies on the Nide-Krehir Massif and its surroundings displayed either insufficient data or have claimed large rotations and/or remagnetization. In order ...
