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

  title={Eoalpine (Cretaceous) evolution of the Oman Tethyan continental margin: insights from a structural field study in Jabal Akhdar (Oman Mountains)},
  author={Jean-Paul Breton and François B{\'e}chennec and Jo{\"e}l Le M{\'e}tour and Laure Moen-maurel and P. Razin},
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 a vergence top to the north-northeast and are associated with a regional cleavage resulting from a ductile shear deformation of the same vergence. This deformation affects the entire autochthonous unit, from the southwestern edge of Jabal Akhdar to the northeastern edge of Saih Hatat, with an… 

Structural evolution of the Jebel Akhdar culmination and its implications for exhumation processes in the northern Oman Mountains

Many orogenic belts show evidence for coeval extension and compressional tectonics. Here I present new evidence for such activity during the tectonic evolution of the Oman Mountains, a Late

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

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

Constrictional extensional tectonics in the northern Oman mountains, its role in culmination development and the exhumation of the subducted Arabian continental margin

Abstract The NE margin of the Arabian continent was overthrust by ‘exotic’ sheets of oceanic and continental margin units (the Semail Ophiolite allochthon) in the Late Cretaceous. Although parts of

Structural evolution of Jabal Qumayrah: A salt-intruded culmination in the northern Oman Mountains

The Jabal Qumayrah area of the northern Oman Mountains records the evolution and subsequent destruction of a Mesozoic passive continental margin in the Oman segment of the Neo-Tethys Ocean,

The Jabal Akhdar dome in the Oman Mountains: Evolution of a dynamic fracture system

The Mesozoic succession of the Jabal Akhdar dome in the Oman Mountains hosts complex networks of fractures and veins in carbonates, which are a clear example of dynamic fracture opening and sealing

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

Structural architecture of a thin-skinned imbricate fan: Evidence from Mesozoic deepwater sediments in the Jabal Wahrah area of the central Oman Mountains

In the central Oman Mountains, Mesozoic deepwater off-margin sediments of the Hawasina Complex were emplaced from the northeast onto the Oman continental margin during the Late Cretaceous obduction

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



Subduction and obduction: two stages in the Eo-Alpine tectonometamorphic evolution of the Oman Mountains

Abstract The platform unit of the Oman Mountains is composed of shelf sedimentary and volcanic rocks, ranging in age from late Proterozoic to late Turonian-Coniacian, that were deformed mainly during

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 Hawasina Nappes: stratigraphy, palaeogeography and structural evolution of a fragment of the south-Tethyan passive continental margin

Abstract Lithostratigraphic and biostratigraphic revision of the Hawasina Nappes in the eastern and central Oman Mountains, including the redefinition of the Hamrat Duru Group and the definition of

Cretaceous high pressure metamorphism in NE Oman and its relationship to subduction and ophiolite nappe emplacement

  • S. Lippard
  • Geology
    Journal of the Geological Society
  • 1983
An occurrence of glaucophane-bearing schists is reported from near Muscat in NE Oman in rocks which underlie the Upper Cretaceous Semail ophiolite nappe. These blueschists formed by the metamorphism

The Alpine deformation of the Central Oman Mountains

  • S. Hanna
  • Geology
    Geological Society, London, Special Publications
  • 1990
Abstract The Saih Hatat, Jebel Nakhl, Jebel Akhdar and the Hawasina Window structures of the Oman Mountains developed as culminations above a major sole thrust associated with late stage emplacement

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

Metamorphism in the Oman Mountains in relation to the Semail ophiolite emplacement

Abstract The metamorphic rocks associated with the Semail ophiolite in the Oman Mountains represent two different facies series. Amphibolites and greenshists at the base of the Semail ophiolite

Structural evolution of the Suneinah Foreland, Central Oman Mountains

Abstract In the early Mesozoic, the Suneinah Foreland of the central Oman Mountains lay on the flank of a north facing Tethyan rift margin. By the end of the Middle Cretaceous, this had evolved into

Regional Structural Style of the Central and Southern Oman Mountains: Jebel Akhdar, Saih Hatat, and the Northern Ghaba Basin

Three quantitative regional transects across the Saih Hatat and Jebel Akhdar anticlines in the Central and Southern Oman Mountains and the Northern Ghaba Basin have been constructed based on