Abstract

Oldest known sedimentary sequence overlying crystalline basement in Oman. Huqf Group is subdivided into five formations corresponding to an alternation of clastics (Abu Mahara and Shuram formations) and carbonates (Khufai and Buah formations) deposited in essentially shallow marine to supratidal (or fluviatile) conditions and terminated by an evaporitic sequence (Ara Formation). Evaporites are absent on the Huqf Axis, but they are thickly developed to the west, where they acted as the major structure former of most of Oman's oil fields. The Huqf Basin is tentatively considered part of a belt of evaporitic basins and intervening carbonate platforms, which stretched across Pangaea from the Salt Range of Pakistan into the Gulf States and Iran.--Modified journal abstract.

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