A review of Mesozoic geodynamic evolution of the North Makran (SE Iran): A tale of a Neo-Tethyan ocean vanished due to two coexisting subduction zones

作者：Edoardo Barbero, L. Pandolfi, Morteza Delavari, Asghar Dolati, Emilio Saccani, Maria Di Rosa, Michèle Marroni · 发表于：Gondwana Research · 年份：2025 · DOI：10.1016/j.gr.2025.01.016 · 被引用次数：8 · 研究领域：Geological and Geochemical Analysis、Geochemistry and Geologic Mapping、earthquake and tectonic studies

• The features of each unit of the North Makran domain (SE Iran) are synthetized. • A novel geodynamic model for the Makran sector of the Neo-Tethys is proposed. • The North Makran domain resulted from the amalgamation of two subduction complexes. This paper presents a synthesis of the geological features of each tectonic unit of the North Makran (SE Iran), integrating results of multidisciplinary analyses, including structural and stratigraphic studies, petrographic and geochemical analyses, thermobarometric studies, as well as biostratigraphic and geochronological dating. This wealth of data forms the basis for a novel geodynamic model of the Jurassic − Eocene evolution of the Neo-Tethys realm, which evolved between the Arabian Plate and the Lut Block. The features of the North Makran tectonic units support the existence of a mid-ocean ridge setting during the Jurassic – Early Cretaceous. Contrary to previous interpretations, the data from these tectonic units suggests a single oceanic basin separating the Arabian and Lut continental margins, without the interposition of a microcontinental block. In the Early Cretaceous, subduction initiation is recorded by volcanic arc assemblages accommodating the convergence between the Arabian Plate and Lut Block. The nucleation of an intra-oceanic subduction marked the separation of the North Makran Ocean from the Neo-Tethys. The Late Cretaceous was characterized by plume-related magmatism and the onset of the convergence in the North ...