The Ad Duwayhi-Wurshah-Umm Mattirah Belt (Mineral Round 9), hosting the Ad Duwayhi gold mine, and the adjoining Duwayhi West Gold Region are located in the east-central part of the Arabian Shield. Situated in the southern Afif tectonostratigraphic terrane, NE of the major NW-trending Ruwah fault zone and to the east of the Nabitah Suture Zone. The Wurshah and Umm Matirah gold prospects are respectively located approximately 50 km and 100 km SSE of the mine. The area is underlain by a sequence of NW-trending volcano-sedimentary- and intrusive rocks that are in contact with the Haml Batholith (~650Ma), a major granitoid terrane to the east.
