As part of the International Indian Ocean Expedition the German research ship "Meteor' visited the Persian Gulf from 14^th of March to 23^rd of April 1965. Geological studies constituted the main part of the program and were carried out by personnel of the Geological-Paleontological Institute of Kiel University with the support of the German Research Society. The paper embodies information on the hydrology of the Persian Gulf in organic sedimentation, Biogenic sedimentation, and Pleistocene Relic Sediment of the Persian Gulf.

The relationships described in this paper should not only serve as a model for adjacent seas in arid climates and for marine marl deposition, but also give impetus for the study of recent sedimentaton on the open shelf of the Indian Ocean.