Seismic sequence stratigraphy of the Paleozoic of Central Arabia, Hawtah area (Saudi Arabia)
Al-Aslani, Abdulaziz Saleh
Vail, Peter R.
Master of Arts
Nine second-order sequences in Central Arabia are in part correlatable with worldwide seismic sequences. Differential uplift and subsidence occurred throughout the Paleozoic and was interrupted by a late Ordovician-early Silurian and an Upper Carboniferous to lower Permian glaciation. The wedge-like sequences A and B represent an incomplete Cambro-Ordovician encroachment cycle. The uppermost Ordovician-lowermost Silurian sequence C represents a thin sequence of glaciogenic clastics. The wedge like sequences D, E and F represent the resumption of passive margin subsidence around the margin of the Central Arabian arch. Sequence G is underlain by a major unconformity (SB 7) which terminates much of the formation of the Central Arabian arch. Sequence H, the upper Permian Khuff carbonates mark the beginning of the wide Mesozoic passive margin of the Tethys.