Fossil and K-Ar data for the age of the Antalya complex, S W Turkey

Yılmaz, Pınar O.

doi:10.1144/gsl.sp.1984.017.01.24

Cited by 17 publications

(16 citation statements)

References 22 publications

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“…The Antalya complex in Southwest Turkey comprises a number of autochthonous (the Beydağları Platform) and allochthonous (e.g., Kumluca unit, Alakırçay mélange, Tekeli-Tahtalı Dağ unit and Tekirova ophiolite) sedimentary, magmatic and metamorphic rock assemblages, that originated from oceanic, oceanic to continental margin and continental settings (Yılmaz, 1984;Robertson andWoodcock, 1981a, b, c, 1980;Delaune-Mayere et al, 1977;Marcoux, 1976;Juteau, 1975;Brunn et al, 1971Brunn et al, , 1970. The allochthonous units of the Antalya complex were emplaced onto the Mesozoic Beydağları Platform during the Late Cretaceous (Fig.…”

Section: Tekirova (Antalya) Ophiolitementioning

confidence: 99%

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The tauride ophiolites of Anatolia (Turkey): A review

Parlak¹

2016

J. Earth Sci.

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The Tauride ophiolites lie on the northern and southern flanks of an E-W-trending Tauride carbonate platform. They mainly consist of three tectonic units namely in ascending order, ophiolitic mélange, sub-ophiolitic metamorphic sole and oceanic lithospheric remnants. They were generated above intra-oceanic subduction zones and emplaced over the Tauride carbonate platform from different Neotethyan oceanic basins in the Late Cretaceous. Tauride ophiolites from west to east are described and reviewed. All are underlain by well-preserved dynamothermal metamorphic soles of varied structural thicknesses up to 500 m that have a constant structural position between ophiolitic mélange below and harzburgitic mantle tectonites above and display typical inverted metamorphic sequences from amphibolite facies above to greenschist facies below. The metamorphic soles are shown to have evolved during the initiation of subduction and emplacement processes. In the Pozantı-Karsantı area the contact between the metamorphic sole and the overlying serpentinized harzburgites is characterized by a 1.5-2-m-thick zone of sheared serpentinized harzburgitic mantle intercalated with amphibolites and cut by thick mafic dykes (7-8 m) which postdate intraoceanic metamorphism and high-temperature ductile deformation. This contact is interpreted as an intra-oceanic decoupling surface along which volcanics from the upper levels of the down-going plate were metamorphosed to amphibolite facies and accreted to the base of the hanging wall plate. The metamorphic soles and overlying ophiolitic rocks were intruded by numerous isolated post-metamorphic diabase dykes filled by island arc tholeiitic magma. Subduction initiation and roll-back processes best explain the structural and petrological relationships of Late Cretaceous ophiolite genesis, metamorphic sole formation and subsequent dyke emplacement of the Tauride ophiolites. KEY WORDS: ophiolite, metamorphic sole, dyke emplacement, roll-back, subduction initiation. INTRODUCTIONThe Tauride orogenic belts of Turkey are interpreted as representing a continental fragment that rifted from Gondwana (North Africa) during the Triassic, followed by reamalgamation and continental collision during the OligoMiocene (Karaoğlan et al., 2016) or Miocene (Okay et al., 2010). The Taurides are traditionally divided into three contiguous parts; the western, central and eastern Taurides (Özgül, 1976).Ophiolites along the Tauride belt start with the Lycian nappes to the west and end with the Divriği ophiolite to the east (Fig. 1). These ophiolites (the Lycian nappes, Antalya, Beyşehir-Hoyran nappes, Mersin, Alihoca, Pozantı-Karsantı, Pınarbaşı and Divriği) are situated either on the northern or on the southern flank of an approximately E-W trending Tauride carbonate platform axis (Juteau, 1980 (Juteau, 1980). The plutonic sections and the metamorphic soles of the Tauride ophiolites are cut by numerous isolated microgabbro-diabase and minor pyroxenite dykes at different structural levels (Robertson et al

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Section: Tekirova (Antalya) Ophiolitementioning

confidence: 99%

“…The magmatic rocks (gabbro, diabase, plagiogranite) and the metamorphic rocks from the Alakırçay mélange as well as the Tekirova ophiolite yielded very scattered (130 to 60 Ma) K-Ar cooling ages (Yılmaz, 1984). Thuizat et al (1981) (Çelik et al, 2006).…”

Section: Petrogenesis and Geochronology Of The Tekirova (Antalya) Ophmentioning

confidence: 99%

The tauride ophiolites of Anatolia (Turkey): A review

Parlak¹

2016

J. Earth Sci.

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“…This work was later extended to the whole SW area of the Antalya allochthon (Antalya-Kumluca). A regional geological map was compiled mainly from literature sources, coupled with petrological, structural, palaeontological and radiometric dating studies (Ylmaz 1984). Ylmaz envisaged a lateral transition from a Bey Daglar carbonate platform in the west, across a deep-water unit (her Kumluca unit), into a Triassic rifted basin (her Alakr Ç ay unit), with a rifted continental fragment further east (her Teke-Tahtal Dag units), with the Tekirova ophiolite further east again.…”

Section: International Studiesmentioning

confidence: 99%

Developments in research concerning Mesozoic–Tertiary Tethys and neotectonics in the Isparta Angle, SW Turkey

2003

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The Isparta Angle has played a critical role in the development of concepts concerning the tectonic evolution of the Mesozoic–Tertiary Neotethys in the Eastern Mediterranean region. Following early regional studies, mainly by the Mineral Research and Exploration Institute of Turkey (MTA), during the 1960s and 1970s, a French team mapped the area and confirmed a regional tectonostratigraphy of three great allochthonous systems of mainly Mesozoic–Early Tertiary age, termed the Antalya, Lycian and Hoyran‐Beyşehir‐Hadım nappes. During the 1970s and 1980s a British group studied the Neotethyan evolution of what they termed the Antalya Complex, utilizing knowledge of plate tectonic processes. Throughout the 1970s and 1980s MTA systematically remapped the area at 1:25 000 scale. The root zone of the Antalya allochthon was either a southerly Neotethys, within and to the south of the Isparta Angle, or a northerly Neotethys, many hundreds of kilometres to the north. The southerly origin is nowadays favoured but some questions remain. Attention focused in the 1990s until present to the post‐collisional, neotectonic evolution of the Isparta Angle and its links with the neighbouring Mediterranean Sea. Here, we trace the development of research and the ongoing debates concerning alternative tectonic concepts used to explain the evolution of the Isparta Angle from Mesozoic to Recent time. We conclude by outlining several tectonic models for the evolution of the Antalya allochthon within a southerly Neotethys that require to be tested by future field studies. Copyright © 2003 John Wiley & Sons, Ltd.

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“…1,2). Previous studies on the Antalya Complex were concentrated on the structural/sedimentological properties of the tectonic zones (Robertson and Woodcock 1980, 1981a, b, c, 1982, the magmatic history of the ophiolitic rocks (Juteau 1975;Juteau and Whitechurch 1980;Juteau et al 1977;Reuber et al 1982;Reuber, 1984) and the isotopic/paleontological age dating (Thuizat et al 1978;Yılmaz 1984). Robertson and Woodcock (1984) stated that the SW segment of the Antalya Complex is an assemblage of Mesozoic carbonate platform, margin and ophiolitic rocks which record the formation and tectonic emplacement of a small Mesozoic ocean basin by wrench and thrust tectonics, whereas the NE segment of the Antalya Complex shows larger scale polyphase thrusting (Waldron 1984).…”

Section: Introductionmentioning

confidence: 99%

“…2) and intruded by pyroxenite, gabbro and diabase dykes (Reuber 1984). The ophiolitic rocks in the SW Antalya Complex was isotopically dated as late Cretaceous by Yılmaz (1984). The Tekirova (Antalya) ophiolite is an important body because different units of this ophiolite were constructed by divers magma types namely IAT, boninites and OIB.…”

Section: Introductionmentioning

confidence: 99%

Petrology of the Tekirova (Antalya) ophiolite (Southern Turkey): evidence for diverse magma generations and their tectonic implications during Neotethyan-subduction

Bağci

Parlak

2007

Int J Earth Sci (Geol Rundsch)

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The SW Antalya Complex is an assemblage of Mesozoic carbonate platform, margin and ophiolitic rocks which record the formation and tectonic emplacement of a small Mesozoic ocean basin. The late Cretaceous ophiolitic rocks are located at two localities, namely the relatively intact Tekirova ophiolite to the east of Kemer zone and the dismembered Gödene ophiolite to the west of Kemer zone. The Tekirova (Antalya) ophiolite comprises harzburgitic tectonites, ultramafic to mafic cumulates, isotropic gabbros and sheeted dikes. Numerous isolated dikes, ranging in thickness from 5 cm to 10 m, intruded the crustal rocks at different structural levels. The isotropic gabbros are represented by gabbro, diorite and quartz diorite rocks with granular to ophitic-subophitic textures. The isolated dikes are characterized by dolerite, diabase and microdiorite with ophitic, intersertal and microgranular textures. These rocks exhibit tholeiitic to alkaline compositions. New geochemical data presented in this paper from the isolated dikes and isotropic gabbros suggest that there are three main types of parental basic magmas that form the oceanic crustal rocks of the Tekirova (Antalya) ophiolite. These are (1) IAT series which can be referred to the Group I isolated dikes and isotropic gabbros; (2) low-Ti boninitic series characterized by the Group II isolated dike and isotropic gabbros; and (3) OIB-type including the Group III isotropic gabbros. The geochemical evidence suggests that the crustal rocks of the Tekirova (Antalya) ophiolite were generated from a progressive source depletion from island arc tholeiites (IAT) to boninites. Therefore, a fore-arc tectonic setting seems likely for the generation of the crustal rocks from the Tekirova (Antalya) ophiolite in the southern branch of Neotethys during the Late Cretaceous. The OIB-type alkaline isotropic gabbros are thought to have resulted from either (1) a late-stage magmatic activity fed by melts that originated within an asthenospheric window due to slab break-off or (2) subduction of a ridge system which generated OIB source across the asthenospheric window that has been no influence of fluids from the subducted slab into the overlying mantle wedge, shortly before the emplacement of the Tekirova (Antalya) ophiolite onto the Tauride platform.

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Fossil and K-Ar data for the age of the Antalya complex, S W Turkey

Cited by 17 publications

References 22 publications

The tauride ophiolites of Anatolia (Turkey): A review

The tauride ophiolites of Anatolia (Turkey): A review

Developments in research concerning Mesozoic–Tertiary Tethys and neotectonics in the Isparta Angle, SW Turkey

Petrology of the Tekirova (Antalya) ophiolite (Southern Turkey): evidence for diverse magma generations and their tectonic implications during Neotethyan-subduction

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