Geology of the Sweihan and Remah 1:100 000 map sheet, 100-7, United Arab Emirates

Thomas, R.J.; Finlayson, A.; Smith, R.A.; Arkley, S.L.B.; Farrant, A.R.. 2012 Geology of the Sweihan and Remah 1:100 000 map sheet, 100-7, United Arab Emirates. Nottingham, UK, British Geological Survey, 48pp.

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Abstract/Summary

This Sheet Description describes the geology of the Sweihan and Remah 1:100 000 scale geological map. The Sweihan and Remah district covers 2780 km2 east of Abu Dhabi. Over 700 observation points were made throughout the district. Pre-Quaternary bedrock comprises Miocene conglomerate of the Barzaman Formation which probably underlies the entire area. It is poorly exposed in roughly east-west trending inter-dune areas and in a number of excavations in the northwest and eastern parts of the area. Over almost the entire area, the Barzaman Formation is overlain by deposits of the Quaternary (Pleistocene) Hili Formation, which is up to at least 20 m thick in places. Three facies of the Hili Formation were mapped; coarse fluvial channel gravels, fluvial sands, and siltstones (overbank deposits). They represent a complex fluvial outwash system draining from the Hajar Mountains in the east. As such, they tend to fine distally to the southwest, where the majority of the fluvial sands and siltstone/mudstones occur. They locally contain intercalated aeolian sand beds which were blown in from the north-west. Quaternary carbonate-cemented aeolianites of the Ghayathi Formation are well-developed in the north western corner of the district. These represent fossil seif dune systems which locally form the cores to fields of modern pale carbonate-dominated low dunes. The Quaternary deposits are overlain by various modern dune sands (Rub al Khali Formation) with various morphologies, mapped as dune ridges, locally culminating in star dunes, and barchanoid low dune fields. Interdune areas, floored either by Miocene or Quaternary rocks typically have continental sabkha veneers and, adjacent to the dune fields, thin sand veneers.

Item Type:	Publication - Book
Programmes:	BGS Programmes 2010 > BGS Corporate
ISBN:	9780852727171
Funders/Sponsors:	Ministry of Energy United Arab Emirates
Additional Information. Not used in RCUK Gateway to Research.:	This item can be purchased from https://www.moenr.gov.ae/en/our-services/geological-reports/geological-reports.aspx
NORA Subject Terms:	Earth Sciences
Date made live:	31 Jul 2012 14:46 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/18669

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