Earth Science Frontiers ›› 2020, Vol. 27 ›› Issue (4): 255-271.DOI: 10.13745/j.esf.sf.2019.8.22

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Proto-type basin evolution of the East Mediterranean Sea

GAO Huahua1(), TONG Xiaoguang1,2,*(), WEN Zhixin2, WANG Zhaoming2   

  1. 1. China National Oil and Gas Exploration and Development Corporation, Beijing 100034, China
    2. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
  • Received:2018-07-23 Revised:2019-05-23 Online:2020-07-25 Published:2020-07-25
  • Contact: TONG Xiaoguang

Abstract:

The Eastern Mediterranean Sea experienced an extension-convergence tectonic cycle, accumulating abundant oil and gas resources. Based on 2D seismic data, ODP Leg160, IHS and Tellus commercial database as well as published papers, we constructed the tectonic-stratigraphic framework of the Eastern Mediterranean Sea and its adjacent area, and restored prototype basins in 12 critical geological periods. We also discussed basin evolution mechanism from the perspective of plate tectonics. The Upper Triassic-the Quaternary in the Eastern Mediterranean Sea can be divided into three regions: the onshore and shallow water region at the Neotethys passive continental margin, deep water region at the Neotethys passive continental margin and the Cyprus forearc fold belt. The first two stratigraphic regions consist of a set of rift-passive continental margin stratum system. However, significant differences in lithofacies and unconformity are in these two regions. A set of oceanic basin-forearc basin stratum system developed in the Cyprus forearc fold belt. The results show that the evolution of the Eastern Mediterranean Sea can be divided into three phases: the Permian-Early Jurassic rifting phase, the Middle Jurassic Bajocian-Late Cretaceous Turonian drifting phase and the convergence and transformation phase since the Late Cretaceous Senonian. The last phase can be subdivided into four stages, including the “double subduction zones” during the Late Cretaceous Senonian, the subduction-collision at the north during the Paleogene, the subduction-collision at the south of the Cyprus Arc and reactivity of the Levant margin during the Miocene, and the “arc-seamount” collision and plate escaping since the Miocene Messinian. The basin evolution was controlled by rifting of continental fragments, including the Tauride-Anatolian plate and the micro-plates (Kyrenia, Troodos and Eratosthenes) from Gondwana, as well as by northward drifting and collision of Eurasia and these continental fragments.

Key words: proto-type basin, tectonic-depositional environment, basin evolution, East Mediterranean Sea

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