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Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 4 | Geoscience Letters

Fig. 4

From: The Makkah–Madinah Transform Zone: a relic rift-to-rift continental transform formed during early Arabia–Nubia plate separation

Fig. 4

Strain rate map of the Arabian margin around 30–28 Ma. The dilatational strain rate localizes along a transform zone that produced by the differential motion between the SRS and the Sirhan rifts. We hypothesize that this strain rate pattern was driven by the slowing along the northern boundary, which caused by the onset of Aegean rift due to the Nubian slab roll-back, and passive rifting along the RS and the Sirhan. Along our defined slippery nodes the strain is very low as the displacement occurred mainly along the faults. We using oversimplified rheology as we intend here to highlight a first order process as a function of the given regional boundary conditions, where the region of interest is either covered by volcanic lavas or sand dunes. Although the strain rate pattern covers the whole region between the SRS and Sirhan rift, the volcanic eruptions are observed only in the southern segment of the MMTZ

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