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Ankara Melange

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Series: GSA Special Papers
Published: 21 December 2017
DOI: 10.1130/2017.2525(19)
EISBN: 9780813795256
... In this paper, we present new geochemical, geochronological, and biostratigraphic data from ophiolites and ophiolitic mélange units exposed along the approximately E-W–trending Izmir-Ankara-Erzincan suture zone in northern Anatolia, Turkey ( Fig. 1 ), and an overview the geological evolution...
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Journal Article
Published: 06 June 2017
Geological Magazine (2018) 155 (2): 451-478.
...VALERIO BORTOLOTTI; MARCO CHIARI; M. CEMAL GÖNCÜOGLU; GIANFRANCO PRINCIPI; EMILIO SACCANI; U. KAGAN TEKIN; RENZO TASSINARI Abstract This study is focused on slide blocks including oceanic lavas associated with pelagic sediments within the eastern part of the Ankara Mélange. A detailed petrological...
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Series: GSA Special Papers
Published: 01 August 2011
DOI: 10.1130/2011.2480(06)
... Structural field studies and geochemical and age analyses of the Eldivan ophiolite, which is dismembered within the Ankara Mélange, indicates that it developed as a supra-subduction zone basin within the İzmir-Ankara-Erzincan Ocean, which later subducted to form the İzmir-Ankara-Erzincan suture...
Journal Article
Published: 01 June 1993
Journal of the Geological Society (1993) 150 (3): 541-550.
...P. A. FLOYD Abstract East of Ankara, Turkey, within the major thrust-bound tectonic units of the Ankara melange (Karakaya and Anatolian Nappes), are numerous blocks of low-grade metamorphosed submarine basaltic lavas. Stable incompatible element geochemistry indicates that the majority...
Series: Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/GSL.SP.2000.173.01.09
EISBN: 9781862394216
... belt composed mainly of ophiolitic mélange (part of the ‘Ankara Mélange’) is representative of the İzmir–Ankara–Erzincan Ocean, located between the Sakarya microcontinent fragment and the leading edge of the Tauride–Anatolide Platform (TAP); and (2) a southern branch called either the Southern...
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Journal Article
Published: 01 January 1995
Environmental and Engineering Geoscience (1995) I (3): 341-351.
...RECEP KILIÇ Abstract The ophiolitic mélange of Ankara, located in Central Anatolia, is composed of a mixture of several types of rocks. They are ultramafic and mafic rocks such as dunite, harzburgite and pyroxenite; gabbro and diabases; basalt and pillow lavas; and pelagic sedimentary rocks...
Journal Article
Published: 29 August 2017
Geological Magazine (2018) 155 (2): 506-535.
... and the Izmir–Ankara–Erzincan suture (IAES) melange. It reveals that all the Sakarya Zone units are metamorphic and three main tectonostratigraphic units have been distinguished for the first time: the BAA (metasiliciclastic rocks capped by metacarbonates and varicoloured phyllite), the BKC (poly-metamorphic...
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Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP372.7
EISBN: 9781862396357
... tectonic units are separated by the Upper Cretaceous–Lower Palaeogene İzmir–Ankara–Erzincan suture zone (Fig. 1 ). This suture zone includes Late Cretaceous ophiolites and ophiolitic melanges, as exposed in northeastern Anatolia ( Şengör & Yılmaz 1981 ; Robertson & Dixon 1984 ; Okay &...
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Journal Article
Journal: GSA Bulletin
Published: 24 April 2019
GSA Bulletin (2019) 131 (11-12): 1943-1964.
...Junpeng Wang; Xiawen Li; Wenbin Ning; Timothy Kusky; Lu Wang; Ali Polat; Hao Deng Abstract Mélanges characterize Phanerozoic convergent plate boundaries, but have rarely been reported from Archean orogens. In this paper, we document a Neoarchean ophiolitic mélange in the Eastern Hebei Province...
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Journal Article
Published: 01 July 2012
Bulletin de la Société Géologique de France (2012) 183 (4): 331-342.
... . – Ofioliti , 33 , 135 – 151 . Bragin N.Y. Tekin U.K. ( 1996 ). – Age of radiolarian-chert blocks from the Senonian Ophiolitic Mélange (Ankara, Turkey) . – The Island Arc , 5 , 114 – 122 . Caridroit M. Ferrière J. ( 1988 ). – 1st precised radiolarian age datings...
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Journal Article
Journal: GSA Bulletin
Published: 09 May 2019
GSA Bulletin (2019) 131 (11-12): 1889-1906.
... documented a Selandian–early Thanetian (57–60 Ma) regional hiatus defining the closure age of the İzmir-Ankara-Erzincan Ocean along the Eastern Pontides. Between late Thanetian and late Lutetian synorogenic turbidites and postcollisional volcanics were deposited. The Eastern Pontide fold-and-thrust belt...
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Journal Article
Journal: Economic Geology
Published: 01 March 2011
Economic Geology (2011) 106 (2): 261-288.
... ). Stable isotope ( δ 18 O and δ D) analyses were carried out on phlogopite, sericite, calcite, barite, fluorite, and quartz, and these were analyzed at the Stable Isotope laboratories in the Geochemical Research Center of the Turkish Petroleum Corporation (Ankara, Turkey), using GV Instruments Isoprime...
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Series: Geological Society, London, Special Publications
Published: 01 January 2009
DOI: 10.1144/SP311.2
EISBN: 9781862395596
...–Anatolide Platform. The Ankara Melange is delineated for convenience although it is intergradational with other accretionary melanges in the region. See text for discussion and data sources. Further east, a large continental unit known as the Niğde–Kırşehir Massif, or the Central Anatolian...
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Series: Geological Society, London, Special Publications
Published: 01 January 2006
DOI: 10.1144/GSL.SP.2006.260.01.10
EISBN: 9781862395084
... Further east, within an exposure of the Ankara Mélange on the outskirts of Ankara city (locality B in Fig. 1 ), blocks of radiolarite were reported to occur in a volcaniclastic matrix together with blocks of gabbro, lava and pink micritic limestone. The interbedded radiolarites were dated as Late...
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Journal Article
Published: 01 June 1978
Journal of the Geological Society (1978) 135 (3): 349-351.
... to important work by Gernot C. Schmidt of the M.T.A., Ankara (1962), in which the great similarity between the Kyrenia Range of Cyprus and the Misis Dađ of Turkey is emphasized. It is true that the submarine topography does not indicate an exact strike continuity between the 40 km extension of the Kyrenia...
Series: Geological Society, London, Special Publications
Published: 01 January 2013
DOI: 10.1144/SP372.16
EISBN: 9781862396357
... of Triassic–Middle Eocene sedimentary rocks, together with mélange units and dismembered ophiolites of Late Cretaceous age ( Perinçek & Kozlu 1984 ; Robertson et al. 2006 ). Mélange is defined here as a pervasively mixed unit, with or without a matrix (see Raymond 1984 ). Mélanges can be formed...
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Journal Article
Published: 01 October 2008
Clays and Clay Minerals (2008) 56 (5): 511-519.
... . Yalçın , H. and Bozkaya , Ö. ( 1995 ) Sepiolite-palygorskite from the Hekimhan region (Turkey) . Clays and Clay Minerals , 43 , 705 – 717 . Yalçın , H. and Bozkaya , Ö. ( 2004 ) Ultramafic-rock-hosted vein sepiolite occurrences in the Ankara ophiolitic melange, central...
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Journal Article
Journal: Palynology
Published: 02 October 2018
Palynology (2018) 42 (4): 516-539.
... and associated melange in the Taurides to the north of the Adana Basin (Williams et al. 1995 ). A rapid subsidence occurred in a foreland basin setting, and an extensional faulting resulted in a marine invasion in the Early Miocene (Kelling et al. 1987 ; Williams et al. 1995 ). Afterward, gradual passive...
Journal Article
Published: 01 April 2018
Clays and Clay Minerals (2018) 66 (2): 146-172.
..., and geochemistry of dunite, harzburgite, and pyroxenite in an ophiolitic mélangé. Çelik et al. (2011) determined the genesis of amphibole levels within an ophiolitic mélange based on the rare earth element contents. Atabey (2009) determined the geological distribution of erionite, quartz, chrysotile...
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Journal Article
Published: 01 April 2004
Clays and Clay Minerals (2004) 52 (2): 227-239.
... to revise our manuscript. REFERENCES Abu-Jaber , N.S. and Kimberley , M.M. ( 1992 ) Origin of ultramafic-hosted vein magnesite deposits . Ore Geology Reviews , 7 , 155 – 191 . Bailey , E.B. and McCallien , W.J. ( 1950 ) The Ankara Mélange and the Anatolian Thrust...
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