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

Abstract

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.

A Miocene onset of the modern extensional regime in the Isparta Angle: constraints from the Yalvaç Basin (southwest Turkey)

“…Robertson et al 2003Robertson et al , 2013Robertson and Ustaömer 2011). Our study suggests that the modern subduction zone configuration of central and eastern Anatolia, as portrayed by seismic tomographic images and documented through bidirectional extension direction documented here, may be more complex than widely assumed.…”

Susceptibility and radiometry data used for stratigraphic correlations: case study on Upper Triassic beds in Turkey

“…1d). Geologically, both localities -Aşagiyaylabel and Karapinar -belong to the Taurus Platform Units, located within the Anamas Dag, south of the IzmirAnkara Suture and north of the Antalya Suture (Robertson 1993;Senel 1997;Andrew & Robertson 2002;Robertson et al 2003;Lukeneder et al 2012). The Anamas Dag, or Anamas-Akseki Autochthonous, bears a Middle to Upper Triassic sequence of limestones, marlstones and shales that is up to 200 m thick (Gindl 2000).…”

Taphonomic implications from Upper Triassic mass flow deposits: 2-dimensional reconstructions of an ammonoid mass occurrence (Carnian, Taurus Mountains, Turkey)

“…The Anamas Dag is part of the so-called Taurus-Platform-Units between the Antalya Suture in the South and the I · zmir-Ankara Suture in the North, south of the Isparta Angle (Robertson 1993;enel 1997;Andrews & Robertson 2002;Robertson et al 2003). The Anamas-Akseki Autochthonous ( = Karacahisar-Autochthonous) includes Middle to Upper Triassic limestones, marlstones and shales of up to 500 m thickness (Gindl 2000).…”

“…The Anamas-Akseki Autochthonous ( = Karacahisar-Autochthonous) includes Middle to Upper Triassic limestones, marlstones and shales of up to 500 m thickness (Gindl 2000). The geology of southwestern Turkey and the Anamas Dag carbonate platform has been extensively investigated by Özgül & Arpat (1973), Dumont & Kerey (1975), Monod (1977), Poisson (1977), Gutnic et al (1979), Robertson (1993Robertson ( , 2000, enel (1997), and Robertson et al (2003). The deposits of this area belong to two formations, the stratigraphically older Kartoz Formation (earliest Carnian), and the younger Kaslmlar Formation (Carbonate, Marlstone and Shale member; Lukeneder et al 2012), which reaches from Early to Late Carnian age (Julian 2 -Tuvalian 1).…”