Collision and Collapse at the Africa-arabia-eurasia by D. J. J. Van Hinsbergen

By D. J. J. Van Hinsbergen

The Mediterranean and northern Arabian areas supply a different ordinary laboratory to constrain geodynamics linked to arc-continent and continent-continent collision and next orogenic cave in by way of analysing neighborhood and temporal distributions of many of the components within the geological archive. This publication combines 13 new contributions that spotlight timing and distribution of the Cretaceous to fresh evolution of the Calabrian, Carpathian, Aegean and Anatolian segments of the Africa-Arabia-Eurasia subduction region. those are subdivided into 5 papers documenting the timing and kinematics of Cretaceous arc-continent collision, and Eocene and Miocene continent-continent collision in Anatolia, with westward extrusion of Anatolia for that reason. 8 papers supply an summary and new info from stratigraphy, constitution, metamorphism and magmatism, protecting the geological results of the principally Neogene cave in that characterizes the segments of curiosity, based on past due degree reorganization of the subduction sector, and the roll-back and break-off of (segments of) the subducting slab.

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Extra info for Collision and Collapse at the Africa-arabia-eurasia Subduction Zone (Geological Society Special Publication)

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Tavs¸anlı zone, requiring modification of the regional tectonic map of Okay and Tu¨ysu¨z (1999). The best exposed of these areas is a NW–SE trending outcrop near Kandil Tepe (GPS 59758: 11814; Fig. 11) that is controlled by Neogene faulting. The northern slopes of Kandil Tepe are characterized by large elongate blocks of weakly recrystallized fossiliferous neritic limestone in a matrix of sandstone turbidites and shale. Southwards, capping Kandil Tepe, a strip of serpentinitematrix melange encloses blocks of neritic limestone (up to 6 m across), radiolarian chert, pegmatitic gabbro, cumulate gabbro and massive gabbro; southwards, more homogenous sheared serpentinite with blocks of diabase/gabbros is exposed.

Su¨lu¨klu¨ area; 24133:28435; Fig. 14). Planktonic foraminifera from the transitional units have yielded an Early Maastrichtian age, while the sedimentary matrix of the overlying melange is reported to be of Early ¨ zcan et al. Maastrichtian–Early Paleocene age (O 1989; Go¨ncu¨og˘lu et al. 1992; Go¨ncu¨og˘lu et al. 2000; our unpublished data). The thicknesses of Upper Cretaceous pelagic and redeposited facies above the neritic carbonates vary markedly along strike. For example, several kilometres south of Hanko¨y (14626:34111) thickbedded neritic meta-carbonates pass depositionally upwards into thin-bedded cherty pelagic limestone (,5 m thick) and then into grey phyllite with detached blocks of siliceous limestone (up to several metres in size).

2001). different areas (O Ophiolites and continental margin sediments and volcanics known as the Lycian nappes were emplaced southwards during the latest Cretaceous and re-thrust further south during the Late Eocene–Miocene (S¸enel 1991; Collins & Robertson 1998, 1999). The regionally extensive Lycian ophiolite is located at the highest structural levels of the allochthon in the SW of the region and is underlain by a metamorphic sole and several types of sedimentary and ophiolitic melange (Collins & Robertson 1997, 1998; C ¸ elik & Delaloye 2003; C ¸ elik et al.

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