Data supplement items I - V for Ring et al. The Samail subduction zone dilemma: Geochronology of high-pressure rocks from the Saih Hatat window, Oman reveals juxtaposition of two subduction segments with contrasting thermal histories

Data supplement I provides a detailed cross section with stratigraphic columns of the Arabian rifted margin in Oman.

Data supplement II provides an additional, geometrical feasible interpretation of the development of the major shear zones of the Ruwi - Al Hamriyah area.

Data supplement item III is a review of literature data for finding a potential protolith for the calcphyllite of the Ruwi Nappe.

Data supplement item IV provides a detailed outline of the Rb-Sr method used for dating metamorphic rocks of the Saih Hatat window. It also describes the 22 samples dated by the Rb-Sr method.

Data supplement item V reports the Rb-Sr data