Abstract
The Mesopotamian Plain is a vast almost flat plain which descends in
elevation towards southeast until it reaches the sea level along the Gulf
shore. The plain covers the central part of Iraq; it is covered totally by
different type of Quaternary sediments. Among those sediments, the fluvial
flood plain sediments of the Tigris and Euphrates rivers with their
distributaries are the most prevailing. The two river merge together to form
the Shatt (River) Al-Arab which drains into the Gulf. The extensions of the Gulf
are a matter of debit, especially between two groups of researchers: geologists
and archeologists and even within the same group. We have presented different
opinions which have dealt with the Gulf extensions, since the beginning
of the last century and until most recent studies. From the presented and
discussed data, it is clear that there is no clear and sound data which
confirms the actual extensions of the Gulf during Holocene and even Late
Pleistocene.
Keywords: Arabian
(Persian) Gulf; Pleistocene; Holocene; Sea level changes.