An overview of the Tertiary geology and hydrogeology of the northern part of the Arabian Gulf region with special reference to Kuwait

Details An overview of the Tertiary geology and hydrogeology of the northern part of the Arabian Gulf region with special reference to Kuwait An overview of the Tertiary geology and hydrogeology of the northern part of the Arabian Gulf region with special reference to Kuwait

Jun 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996esrv...40..259m&link_type=abstract

Earth Science Reviews, Volume 40, Issue 3-4, p. 259-295.

Computer Science

2

Scientific paper

Tertiary sediments constitute the main source of usable groundwater in Kuwait. Tectonics, depositional environment, lithology and the hydrogeology of these sediments have been reviewed on a regional scale, with special reference to Kuwait. The review showed that Kuwait was situated at the boundary of the stable shelf towards southwest and the unstable shelf towards northeast throughout the Tertiary period. The Tertiary sedimentation started in this area with a marine transgression in the Palaeocene. Shallow marine to sabkha conditions prevailed in the area until the end of the Eocene; a carbonate-evaporite sequence (Umm Er-Radhuma, Rus and Dammam Formation) was deposited during this period. The sea regressed at the end of Eocene, and a widespread unconformity, causing the absence of Oligocene deposits over most of the area, marked the event. The karstification of the Dammam Limestone Formation, that provides localized easier pathways for ground water, took place during this period. The deposition of the clastic sediments of the Kuwait Group and its equivalents on the stable shelf, under mostly continental conditions, started in the early Miocene. The Tertiary aquifers of the area are recharged by occasional rainstorms in the outcrops of Saudi Arabia and Iraq. The water flows towards the north and east in the direction of the regional dip and discharges along the present-day coast of the Gulf. The water quality deteriorates in the same direction, being more mineralized as it flows through the aquifers. The aquifers are presently being exploited at a comparatively high rate. Since the aquifers extend beyond the political boundaries, cooperation among the countries of the region is recommended to ensure the optimum utilization of the scarce water resources of this desert environment.

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