This historical account relates to the work of the Research Committee
of the American Association of Petroleum Geologists (AAPG) and two of
its subcommittees: the Carbonate Rock Committee and the Persian Gulf R
esearch Committee. In 1968-1974 as a member of the AAPG Research Commi
ttees sind chair of the two other committees I was involved in supervi
sing research in Abu Dhabi The purpose of this paper is to document by
aerial and ground photographs classical arid peritidal settings photo
graphed in 1969 that are no longer pristine because the area of study
in Abu Dhabi has suffered as a result of urban sprawl. This paper cons
ists of a narrative for the photographs. The reader is encouraged to v
iew the photographs and study their captions. They show peritidal sett
ings, including sabkhas. microbial mats, and supratidal anhydrite.