ABSTRACT
Late Tertiary and general Quaternary climate as background Until about the end of the Oligocene, marine conditions prevailed in the eastern part of the Arabian Peninsula. Continental conditions set in about the beginning of Miocene time, and, except for a brief marine incursion in the Burdigalian (Lower Miocene), have been the situation since. The present Arabian Gulf is a very young feature, largely a product of the Flandrian eustatic marine transgression at the end of the Pleistocene.
