Browsing by Author "Boztug, Durmus"
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Apatite fission track data from central Anatolian granitoids (Turkey): Constraints on Neo-Tethyan closure
Boztug, Durmus; Jonckheere, Raymond C. (AMER GEOPHYSICAL UNION, 2007)[1] Apatite fission track age versus elevation profiles and temperature-time-path modeling indicate an early to middle Paleocene ( 57 - 62 Ma) rapid exhumation of the Middle to Late Cretaceous granitoids in central Anatolia ... -
Ar-40-Ar-39 dating, whole-rock and Sr-Nd-Pb isotope geochemistry of post-collisional Eocene volcanic rocks in the southern part of the Eastern Pontides (NE Turkey): implications for magma evolution in extension-induced origin
Arslan, Mehmet; Temizel, Irfan; Abdioglu, Emel; Kolayli, Hasan; Yucel, Cem; Boztug, Durmus; Sen, Cuneyt (SPRINGER, 2013)The Eocene volcano-sedimentary units in the southern part of the Eastern Pontides (NE Turkey) are confined within a narrow zone of east-west trending, semi-isolated basins in Bayburt, GumuAYhane, Airan and Alucra areas. ... -
Ar-40/Ar-39 age and geochemistry of the post-collisional Miocene Yamadag volcanics in the Arapkir area (Malatya Province), eastern Anatolia, Turkey
Kurum, Sevcan; Onal, Ayten; Boztug, Durmus; Spell, Terry; Arslan, Mehmet (PERGAMON-ELSEVIER SCIENCE LTD, 2008)The Neogene Yamadag volcanics occupy a vast area between Sivas and Malatya in eastern Anatolia, Turkey. These volcanic rocks are characterized by pyroclastics comprising agglomerates, tuffs and some small outcrops of ... -
Geochemical and Pb-Sr-Nd isotopic composition of the ultrapotassic volcanic rocks from the extension-related Camardi-Ulukisla basin, Nigde Province, Central Anatolia, Turkey
Alpaslan, Musa; Boztug, Durmus; Frei, Robert; Temel, Abidin; Kurt, Mehmet Ali (PERGAMON-ELSEVIER SCIENCE LTD, 2006)Major, trace element and Sr-Nd-Pb isotope data are presented for the ultrapotassic lavas and dykes from the Late Cretaceous-Early Tertiary Ulukisla Basin in the Central Anatolia. All samples have geochemical characteristics ... -
Geochemical characteristics of the composite Kaqkar batholith generated in a Neo-Tethyan convergence system, Eastern Pontides, Turkey
Boztug, Durmus; Ercin, A. Ihsan; Kurucelik, M. Kemal; Goc, Deniz; Komur, Ismail; Iskenderoglu, Ali (PERGAMON-ELSEVIER SCIENCE LTD, 2006)The composite Kackar batholith, of Cretaceous to Late Eocene age, consists of various intrusions derived from different geodynamic settings ranging from early to mature arc, through collision, to post-collisional extension ... -
Geochemistry and petrogenesis of the Agoren intrusives in east Anatolia/Turkey
Oner, Fevzi; Alpaslan, Musa; Boztug, Durmus; Kuscu, Mustafa (ELSEVIER GMBH, URBAN & FISCHER VERLAG, 2007)The bulk mass of the intrusive rocks found in the surroundings of Agoren/East Anatolia is composed mainly of Kfeldspar, quartz and plagioclase. Moreover the minerals biotite, muscovite and rarely amphiboles are present as ... -
K-Ar age, whole-rock and isotope geochemistry of A-type granitoids in the Divrigi-Sivas region, eastern-central Anatolia, Turkey
Boztug, Durmus; Harlavan, Yehudit; Arehart, Greg B.; Satir, Muharrem; Avci, Necmettin (ELSEVIER SCIENCE BV, 2007)The bimodal, A-type Dumluca and Murmana granitoids consist of felsic monzonitic/syenitic and mafic gabbroic/dioritic and monzogabbroic/monzodioritic rocks, which were intruded into the Cenomanian-Turonian supra subduction ... -
K-Ar ages of granitoids unravel the stages of Neo-Tethyan convergence in the eastern Pontides and central Anatolia, Turkey
Boztug, Durmus; Harlavan, Yehudit (SPRINGER, 2008)K-Ar dating of mineral separates extracted from various granitoid rock units of the eastern Pontides and central Anatolia, Turkey, has provided some new insights unravelling various stages of the Neo-Tethyan convergence ... -
The Nature of the Crustal Structure of the Eastern Anatolian Plateau, Turkey
Yilmaz, Ali; Yilmaz, Huseyin; Kaya, Cemal; Boztug, Durmus (TAYLOR & FRANCIS LTD, 2010)The Eastern Anatolian Plateau (EAP) of Turkey, with an elevation ranging from 1700 to 2000 m, is located between the Eastern Pontide Arc to the north and the Arabian Platform to the south. In this region, pre-Maastrichtian ... -
Origin and tectonic significance of the metamorphic sole and isolated dykes of the Divrigi ophiolite (Sivas, Turkey): Evidence for slab break-off prior to ophiolite emplacement
Parlak, Osman; Yilmaz, Huseyin; Boztug, Durmus (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2006)The Late Cretaceous Divrigi ophiolite of east-central Anatolia comprises. from bottom to top. an ophiolitic melange, metamorphic sole and remnants of oceanic lithosphere. The ophiolitic melange has been thrust onto the ... -
Oxygen and sulfur isotope geochemistry revealing a significant crustal signature in the genesis of the post-collisional granitoids in central Anatolia, Turkey
Boztug, Durmus; Arehart, Greg B. (PERGAMON-ELSEVIER SCIENCE LTD, 2007)Late Cretaceous granitoid rocks from central Anatolia comprise S-I-A-type plutons derived from the collisional stages of the Neo-Tethyan convergence system in central Turkey. These granitoids intrude the tectonic imbrication ... -
Pb-207-(206) Pb single-zircon evaporation ages of some granitoid rocks reveal continent-oceanic island arc collision during the Cretaceous geodynamic evolution of the central Anatolian crust, Turkey
Boztug, Durmus; Tichornirowa, Marion; Bombach, Klaus (PERGAMON-ELSEVIER SCIENCE LTD, 2007)(207) Pb-Pb-206 single-zircon evaporation age determinations carried out on nine different granitoid units of central Anatolia, Turkey have yielded three distinct granitoid groups with different emplacement ages. These are ... -
Pb-207-Pb-206, Ar-40-Ar-39 and Apatite Fission-Track Geothermochronology Revealing the Emplacement, Cooling and Exhumation History of the Karacayir Syenite (N Sivas), East-Central Anatolia, Turkey
Boztug, Durmus; Turksever, Esra; Heizler, Matt; Jonckheere, Raymond C.; Tichomirowa, Marion (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2009)The Karacayir syenite, intruding the Palaeozoic crustal metamorphics and unconformably overlain by Upper Paleocene to Eocene Tokus formation in the north of Sivas (east-central Anatolia), has been studied with respect to ... -
Pb-207-Pb-206, Ar-40-Ar-39 and Fission-Track Geothermochronology Quantifying Cooling and Exhumation History of the Kaman-Kirsehir Region Intrusions, Central Anatolia, Turkey
Boztug, Durmus; Guney, Ozlem; Heizler, Matt; Jonckheere, Raymond C.; Tichomirowa, Marion; Otlu, Nazmi (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2009)The Kaman-Kirsehir region intrusions were generated in a post-collisional extensional setting following Cenomanian-Turonian docking of an oceanic island arc, comprising the supra-subduction zone (SSZ) Central Anatolian ... -
Petrogenesis of the Kosedag Pluton, Susehri-NE Sivas, East-Central Pontides, Turkey
Boztug, Durmus (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2008)The Kosedag syenite crops out as a shallow-seated pluton within the Eocene volcano-sedimentary rocks and is unconformably overlain by Lower Miocene limestones in the Susehri-NE Sivas region, east-central Ponticles. It ... -
Petrology and Ar-40-Ar-39 age of the bimodal Orduzu volcanics (Malatya) from the western end of the eastern Anatolian Neogene volcanism, Turkey
Oenal, Ayten; Boztug, Durmus; Arslan, Mehmet; Spell, Terry L.; Kueruem, Sevcan (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2008)The Orduzu volcanics, which are part of the Yamadag volcanics in the Malatya region, include rhyolite, rhyolitic dykes, trachyandesite and basaltic trachyanclesitic dykes. Mafic globular occurrences within the basaltic ... -
Punctuated Exhumation and Foreland Basin Formation and Infilling in (Circum)-Central Anatolia (Turkey) Associated with the Neo-Tethyan Closure
Boztug, Durmus; Temiz, Haluk; Jonckheere, Raymond; Ratschbacher, Lothar (SCIENTIFIC TECHNICAL RESEARCH COUNCIL TURKEY-TUBITAK, 2008)Apatite fission-track data indicate that the (circum)-central Anatolian granitoids (CAG) were exhumed during successive shortening phases following continent-continent collisions within the Neo-Tethyan domain in central ...