Rubidium-Strontium Geochronology and Plate-Tectonic Evolution of the Southern Part of the Arabian Shield By ROBERT J. FLECK, WILLIAM R. GREENWOOD, DONALD G. HADLEY, R. ERNEST ANDERSON, and DWIGHT L. SCHMIDT GEOLOGICAL SURVEY PROFESSIONAL PAPER Prepared in cooperation with the Saudi Arabian Ministry of Petroleum and Mineral Resources, GEOTECTONIC AND GEODYNAMIC FRAME . The Arabian Plate is a tectonic plate in the northern and eastern hemispheres..
The Arabian plate (Figure 4) is moving away from Nubia in a northwest direction in the Red Sea at a rate varying along the strike of the rift between 14 mm/yr and 5.6 mm/yr (McClusky et al., 2003). The Arabian plate roughly appears as a polygon, lo- cated between the major African plate (including Nubian and Somalian ones), and Eurasiatic and Indian plates, respectively [1]. scale of the Arabian Plate and interior Iran remains speculative. assessment and time-evolution of seismicity, in this plate, are the subject of this research. 2. At the Mid Atlantic Ridge, spreading is occurring at an average half rate of 12-13 mm/yr (Wang et al., 2011). Schematic reconstruction of the accretionary evolution of the Arabian Plate.
By 715 Ma, the Asir, Hijaz and Midyan terranes formed the western part of the Arabian Shield. Contents. Between about 680 and 640 Ma the Afif terrane collided with the western Shield along the Nabitah Suture.