Late Cretaceous to Paleogene post-obduction extension and subsequent Neogene compression in the Oman Mountains

  title={Late Cretaceous to Paleogene post-obduction extension and subsequent Neogene compression in the Oman Mountains},
  author={Marc Fournier and Claude Lepvrier and P. Razin and Laurent Jolivet},
After the obduction of the Semail ophiolitic nappe onto the Arabian Platform in the Late Cretaceous, north Oman underwent several phases of extension before being affected by compression in the framework of the Arabia-Eurasia convergence. A tectonic survey, based on structural analysis of fault-slip data in the post-nappe units of the Oman Mountains, allowed us to identify major events of the Late Cretaceous and Cenozoic tectonic history of northern Oman. An early ENE-WSW extensional phase is… 

Late-stage tectonic evolution of the Al-Hajar Mountains, Oman: new constraints from Palaeogene sedimentary units and low-temperature thermochronometry

Abstract Mountain building in the Al-Hajar Mountains (NE Oman) occurred during two major shortening stages, related to the convergence between Africa–Arabia and Eurasia, separated by nearly 30 Ma of

Chapter 5 Tectonic evolution of the Oman Mountains

Abstract The tectonic evolution of the Oman Mountains as of the Neoproterozoic begins with a major extensional event, the Neoproterozoic Abu Mahara rifting. It was followed by the compressional

Structure of the Offshore Obducted Oman Margin: Emplacement of Semail Ophiolite and Role of Tectonic Inheritance

The northern Oman margin is a key area for understanding the emplacement of the Semail Ophiolite and obduction processes in general. This study uses a grid of 2D‐multichannel seismic lines tied to

Gondwana accretion tectonics and implications for the geodynamic evolution of eastern Arabia: First structural evidence of the existence of the Cadomian Orogen in Oman (Jabal Akhdar Dome, Central Oman Mountains)

Abstract This work describes two early Cambrian folding events within Cryogenian to earliest Cambrian rocks of the western Jabal Akhdar Dome (NE Oman). This sequence is truncated at an angular

Multiphase Structural Evolution of a Continental Margin During Obduction Orogeny: Insights From the Jebel Akhdar Dome, Oman Mountains

The structural evolution of the carbonate platform in the footwall of the Semail ophiolite emplaced onto the passive continental margin of Arabia helps to better understand the early stages of

Structural and tectonic evolution of the Jabal Sumeini – Al Ain – Buraimi region, northern Oman and eastern United Arab Emirates

Four main Late Cretaceous and Tertiary phases of crustal shortening and thrust-related deformation are recognised in the northern Oman Mountains, each phase ending with a regional unconformity

Postobductional Kinematic Evolution and Geomorphology of a Major Regional Structure—The Semail Gap Fault Zone (Oman Mountains)

The Semail Gap/Semail Gap Fault Zone is one of the most prominent tectonic features in the Oman Mountains and is located between the Jabal Akhdar Dome in the west and the Saih Hatat Dome to the east.

Chapter 2 Tectonostratigraphy of the eastern part of the Oman Mountains

Abstract This chapter provides comprehensive descriptions of 52 numbered formations/rock units of the Southeastern Oman Mountains, based on available literature. The oldest eight siliciclastic and



Late Palaeozoic to Neogene geodynamic evolution of the northeastern Oman margin

When the highlands of Arabia were still covered with an ice shield in the latest Carboniferous/Early Permian period, separation of Gondwana started. This led to the creation of the Batain basin (part

The post-Campanian tectonic evolution of the Central Oman Mountains: Tertiary extension of the Eastern Arabian Margin

Abstract This paper documents the structural history of the central Oman Mountains after the obduction of the Semail ophiolite onto the eastern margin of the Arabian continent during the Late

Late Cretaceous exhumation of the Oman blueschists and eclogites: a two-stage extensional mechanism

The continental material of the Saih Hatat window has been affected by a Late Cretaceous, obduction-related, HP-LT metamorphism below the Oman ophiolite. A high-rate exhumation process is witnessed

The northern Oman Tethyan continental margin: stratigraphy, structure, concepts and controversies

Abstract The Oman Mountains constitute one of the best areas in which to study the development and subsequent deformation of a passive continental margin. Pulsed rifting of the Arabian craton in

Eoalpine (Cretaceous) evolution of the Oman Tethyan continental margin: insights from a structural field study in Jabal Akhdar (Oman Mountains)

A structural study in Jabal Akhdar (an autochthonous window in the Oman Mountains) shows that the thrusts and imbrications, mapped in the Permian-Cretaceous formations of the Arabian Platform, have

Maastrichtian to early Tertiary stratigraphy and palaeogeography of the Central and Northern Oman Mountains

Abstract Maastrichtian to Tertiary sedimentary rocks outcrop extensively around the periphery of the Oman Mountains. They form part of a geologically distinct suite of strata deposited after

The tectonic evolution of pre-Permian rocks, Central and Southeastern Oman Mountains

  • A. MannS. Hanna
  • Geology
    Geological Society, London, Special Publications
  • 1990
Abstract The structural history of pre-Permian basement rocks exposed in the domal uplifts of Jebel Akhdar, Jebel Nakhl and Saih Hatat, central and southeastern Oman mountains, is dominated by Late

Sedimentary aspects of the Eo-Alpine cycle on the northeast edge of the Arabian Platform (Oman Mountains)

Abstract The northeast edge of the Arabian Platform in the Oman Mountains is represented by the autochthonous unit that crops out in the two windows of Jabal Akhdar and Saih Hatat, beneath and in

The Tectonic Evolution of Interior Oman

The evolution of Oman’s onshore sedimentary basins from the Late Precambrian to the Present is reflected by six tectono-stratigraphic units. Unit I, the Precambrian basement, represents continental