Palaeozoic-Early Tertiary Tethyan Evolution of Mélanges, Rift and Passive Margin Units in the Karaburun Peninsula (western Turkey) and Chios Island (Greece)

Robertson, Alastair H. F.; Pickett, Elizabeth

doi:10.1144/gsl.sp.2000.173.01.03

Cited by 40 publications

(73 citation statements)

References 36 publications

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“…The main problem is that the Pontide and Anatolide-Tauride margin evolution are dissimilar, e.g. with the major latest Triassic 'Cimmerian' orogenic event being restricted to the Pontide margin, whereas Triassic rifting and Jurassic passive margin subsidence continued on the Anatolide-Tauride margin without a comparable major orogenic event (Robertson & Pickett 2000). Assuming the out-of-sequence thrusting model, a rifted continental fragment would border the Anatolide-Tauride platform (Fig.…”

Section: Discussion Of Regional Palaeogeographymentioning

confidence: 99%

“…Overlying shallow-water carbonates of MidLate Triassic age record a subsiding Bahama-type carbonate platform adjacent to Neotethys. Fluvial to shallow-marine clastic sediments (Ç ayir Formation) of latest Triassic age record faultrelated uplift and erosion of the underlying basement (Monod & Akay 1984), possibly a compressional effect related to the final emplacement of the Karakaya Complex in the Pontides further north (Robertson & Pickett 2000). Carbonates and passive margin subsidence dominated the remainder of Mesozoic time, with a switch to deeper pelagic carbonate deposition in Late Cretaceous time.…”

Section: Regional Autochthon (Geyik Dag Unit)mentioning

confidence: 99%

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The Beyşehir–Hoyran–Hadim Nappes: genesis and emplacement of Mesozoic marginal and oceanic units of the northern Neotethys in southern Turkey

Andrew

Robertson

2002

JGS

114

109

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The Beyşehir-Hoyran-Hadim Nappes crop out over 700 km from NW to SE. Above a regionally autochthonous Tauride carbonate platform the Beyşehir-Hoyran Nappes begin with a thrust sheet (c. 400 m) of mainly redeposited carbonates, quartzose sandstones and mudstones of Mid-Late Triassic age, interpreted as a proximal slope-base-of-slope succession. Above is a thrust sheet (c. 1 km) of Middle-Upper Triassic intermediate-acidic extrusive rocks, volcaniclastic rocks and minor pelagic carbonates, interpreted as a continental rift. Thin (,100 m) Upper Triassic-Upper Cretaceous pelagic carbonate and radiolarian chert lie depositionally above. The uppermost thrust sheet comprises broken formation and mélange, including Jurassic shallow-water carbonate, radiolarian chert and Upper Cretaceous pelagic limestone. Zones of tectonicsedimentary mélange separate higher units. The Beyşehir-Hoyran Nappes document Triassic rifting and Jurassic-Cretaceous passive margin subsidence bordering the Northern Neotethys. A harzburgitic ophiolite probably formed above a north-dipping subduction zone within the ocean basin. The ophiolite was emplaced southwards onto the northern margin of the Tauride platform in latest Cretaceous time. The nappe pile and underlying platform (Hadim Nappe) were thrust further south in Late Eocene time. Assuming in-sequence thrusting, the Beyşehir-Hoyran Nappes restore to a location north of a Neotethyan spreading axis. More probably, they originated near the south margin of the Northern Neotethys, but reached their position by outof-sequence thrusting. Formation within a southerly strand of the Northern Neotethys (Inner Tauride ocean) is more probable than within the main Northern Neotethys further north.

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Section: Discussion Of Regional Palaeogeographymentioning

confidence: 99%

Section: Regional Autochthon (Geyik Dag Unit)mentioning

confidence: 99%

The Beyşehir–Hoyran–Hadim Nappes: genesis and emplacement of Mesozoic marginal and oceanic units of the northern Neotethys in southern Turkey

Andrew

Robertson

2002

JGS

114

109

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“…the Karakaya complex) (Şengör et al, 1984;Okay and Tüysüz, 1999;Okay and Altıner, 2004), (ii) IzmirAnkara-Erzincan Suture Zone including the Karaburun Belt (Erdoğan, 1990;Okay et al, 2001;Çakmakoğlu and Bilgin, 2006) (Fig. 2), (iii) Menderes Massif-Cycladic Massif and (iv) Lycian nappes (Şengör and Yılmaz, 1981;Robertson and Pickett, 2000;Bozkurt and Oberhänslı, 2001). These units have distinct characteristics in terms of stratigraphy, Simsek et al, 2002 andYigitbas et al, 2004).…”

Section: Tectonostratigraphic Units In Western Anatoliamentioning

confidence: 99%

“…The Karaburun Belt, also known as Karaburun Mélange, is made up of Silurian-Upper Carboniferous exotic blocks within a sheared matrix of siliciclastic turbidites (Robertson and Pickett, 2000). The underlying structure of the Cycladic Massif is composed of eclogites, blueschists, and high-pressure olistostromal units (Oberhänsli et al, 2001).…”

Section: Tectonostratigraphic Units In Western Anatoliamentioning

confidence: 99%

Source of arsenic based on geological and hydrogeochemical properties of geothermal systems in Western Turkey

Baba

Sözbi̇li̇r

2012

Chemical Geology

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Turkey is an area of complex geology with active tectonics and high geothermal potential. Especially, the western part of Turkey is a region of abundant geothermal activity. Faults accommodating the deep circulation of hydrothermal fluids of meteoric origin are the primary means by which of geothermal systems are controlled in this region. Many of the thermal activities are related to the improved dilation on the~E-W-strikes of the graben faults. This situation serves as a suitable environment for the presence of high levels of arsenic in geothermal water resources. The highest concentrations of naturally occurring aqueous arsenic (As) are found in certain types of geothermal waters, generally those related to major graben faults. In this regard, high arsenic concentrations in geothermal resources have been detected in Western Turkey, including but not limited to Biga Peninsulla, Gediz Graben, Kucuk, and Buyuk Menderes Graben with values ranging from 1 to 1419 ppb in geothermal fluids. The thermal waters have surface temperatures of up to 100°C and reservoir temperatures range from 150 to 248°C in the Menderes Graben, from 120 to 287°C in the Gediz Graben, and from 153 to 174°C in Biga Peninsula. Hydrogeochemically, the Menderes graben and Gediz Graben thermal waters are of the Na-HCO 3 , Ca-HCO 3, and Na-SO 4 types, whereas some geothermal fluids such as those of Tuzla and Kestanbol in the Biga Peninsula, Çeşme, and Urla are of the Na-Cl type.

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“…In spite of important Neogene tectonic complications, a complete stratigraphic sequence of pre-Neogene rocks exists in the region (Besenecker et al, 1971;Brinkmann et al, 1972;Erdogan et al, 1990;Papanikolaou and Sideris, 1992;Kozur, 1998;Robertson and Pickett, 2000). A thick Mesozoic platform resting in discordance on a Paleozoic mélange is linked to the important Neogene extension which still affects the region (Isintek et al, 2000;Rosselet and Stampfli, 2002).…”

Section: Geological Framementioning

confidence: 99%

1881 and 1949 earthquakes at the Chios-Cesme Strait (Aegean Sea) and their relation to tsunamis

Altınok

Alpar

Özer

et al. 2005

Nat. Hazards Earth Syst. Sci.

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Palaeozoic-Early Tertiary Tethyan Evolution of Mélanges, Rift and Passive Margin Units in the Karaburun Peninsula (western Turkey) and Chios Island (Greece)

Abstract: Similar Palaeozoic-Lower

Cited by 40 publications

References 36 publications

The Beyşehir–Hoyran–Hadim Nappes: genesis and emplacement of Mesozoic marginal and oceanic units of the northern Neotethys in southern Turkey

The Beyşehir–Hoyran–Hadim Nappes: genesis and emplacement of Mesozoic marginal and oceanic units of the northern Neotethys in southern Turkey

Source of arsenic based on geological and hydrogeochemical properties of geothermal systems in Western Turkey

1881 and 1949 earthquakes at the Chios-Cesme Strait (Aegean Sea) and their relation to tsunamis

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