Tectonics and kinematics of an Alpine shear zone near As Sifah (NE Oman)

Al Harthy S, Bauer W, Handoniaina JAN, Al Maawali H, Wischer J, Tamas DM (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Arabian Journal of Geosciences Springer Verlag (Germany)

Book Volume: 15

Journal Issue: 7

DOI: 10.1007/s12517-022-09887-6

Abstract

The Saih Hatat Dome forms a tectonic window under the overlying allochthonous Samail ophiolite and nappes composed of sediments from the Neotethyan Hawasina Basin. In this window, high- to ultra-high pressure/low-temperature eclogites and blueschists of the so-called lower plate are tectonically overlain by metamorphic rocks, forming the so-called upper plate. In 2018, the footwall of the discontinuity became exposed in a 650-m-long and up to 37-m-deep road cut which gave an insight to structural elements in these highly sheared blueschists. Kinematic indicators point to a top-to-north simple shear movement along low-angle discrete shear zones of decimeter to meter thickness, alternating with low-strain zones that are occupied by folded competent rocks. Fold axes are aligned parallel to the mineral stretching lineations and were formed by simple shear-related shortening of a steep limb of a pre-existing N-S oriented syncline. The structural inventory of the outcrop can be interpreted as the result of the Late Cretaceous exhumation of the NE corner of the Arabian Plate.

Authors with CRIS profile

Joschka Wischer Professur für Angewandte Geologie und Modellierung von Umweltsystemen

Involved external institutions

German University of Technology in Oman (GUtech) / الجامعة الألمانية للتكنولوجيا في عمان OM Oman (OM) Babeș-Bolyai University / Babeș–Bolyai Tudományegyetem / Universitatea Babeș-Bolyai (UBB) RO Romania (RO)

How to cite

APA:

Al Harthy, S., Bauer, W., Handoniaina, J.A.N., Al Maawali, H., Wischer, J., & Tamas, D.M. (2022). Tectonics and kinematics of an Alpine shear zone near As Sifah (NE Oman). Arabian Journal of Geosciences, 15(7). https://dx.doi.org/10.1007/s12517-022-09887-6

MLA:

Al Harthy, Salima, et al. "Tectonics and kinematics of an Alpine shear zone near As Sifah (NE Oman)." Arabian Journal of Geosciences 15.7 (2022).

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