[
    {
        "id": "osp-13451",
        "type": "article-journal",
        "title": "Kinematics of Post-obduction Deformation of the Tertiary Ridge at Al-Khod Village (Muscat, Oman)",
        "author": [
            {
                "family": "Scharf",
                "given": "Andreas"
            },
            {
                "family": "Mattern",
                "given": "Frank"
            },
            {
                "family": "Al-Sadi",
                "given": "Sawsan S."
            }
        ],
        "URL": "https://omanscience.com/en/articles/kinematics-of-post-obduction-deformation-of-the-tertiary-ridge-at-al-khod-village-muscat-oman",
        "language": "en",
        "issued": {
            "date-parts": [
                [
                    2016
                ]
            ]
        },
        "container-title": "Sultan Qaboos University Journal for Science",
        "volume": "21",
        "issue": "1",
        "page": "26",
        "DOI": "10.24200/squjs.vol21iss1pp26-40",
        "publisher": "Sultan Qaboos University",
        "ISSN": "2308-3921",
        "abstract": "Structural investigations in post-obductional Paleocene to Eocene limestones of the Tertiary Ridge reveal a ~1 km long WNW-ESE striking strike-slip fault system within the ridge, consisting of two main sub-parallel, strike-slip faults. Considering the geometry of the Harding Strain Ellipse, the orientation of structures between the two strike-slip faults (e.g., Riedel shears, folds, reverse faults) point to left-lateral motion. The abundance of large-scale folds (up to 100 m in wave length and amplitude) between the two strike-slip faults led us to the interpretation of transpressive conditions in a first approximation. Moreover, the Tertiary Ridge of the study area consists of three distinct structural domains. The faults of Domain A and C are oriented WNW-ESE, but the trend of the faults in the central Domain B differs by ~10°. The left-lateral strike-slip fault system exists only in Domain B. We propose that the direction of greatest stress during Miocene plate convergence (sigma 1) was oriented 032°/212°. Considering the trend of the strike-slip zone and the orientation of sigma 1, the left-lateral motion must have been transpressive. Sigma 1 is perpendicularly oriented to the domains A and C. Prior to the Miocene D2 compressional event the study area was affected by a D1 extensional event, related to the opening of the Red Sea and the Gulf of Aden or to gravity-driven normal faulting. The D2 compressional/transpressional structures of the Miocene are reactivating the D1 structures of the Oligocene."
    }
]