2000
DOI: 10.1046/j.1365-3091.2000.00336.x
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Latest Pleistocene and Holocene dune construction at the north‐eastern edge of the Rub Al Khali, United Arab Emirates

Abstract: Optical dating of two dune profiles developed in linear dunes in Ras Al Khaimah, United Arab Emirates, has been used to establish the timing and rate of dune accretion. One section at Awafi was over 17 m high, while that at Idhn was over 40 m high. The Awafi dune appears to have accumulated very rapidly ≈10 000 years ago, with a vertical accumulation rate of about 3·3 m ka−1. The Idhn dune appears to have accumulated over the past 1000 years, with 20 m of sediment accumulating in a time period of about 270 yea… Show more

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Cited by 96 publications
(110 citation statements)
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References 29 publications
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“…Across much of the UAE, generally unimodal north-westerly Shamal wind regimes (Barth, 2001) favour barchan or transverse dune forms. As these dunes migrate, each phase of dune activation may remove evidence of earlier forms, particularly where the sediment supply is limited by high groundwater and sea levels, and the rate of deflation of sand from older deposits is low (Goudie et al, 2000). This can lead to discontinuous sediment records.…”
Section: Introductionmentioning
confidence: 99%
“…Across much of the UAE, generally unimodal north-westerly Shamal wind regimes (Barth, 2001) favour barchan or transverse dune forms. As these dunes migrate, each phase of dune activation may remove evidence of earlier forms, particularly where the sediment supply is limited by high groundwater and sea levels, and the rate of deflation of sand from older deposits is low (Goudie et al, 2000). This can lead to discontinuous sediment records.…”
Section: Introductionmentioning
confidence: 99%
“…The advent of optically stimulated luminescence (OSL) dating (see review in Singhvi and Porat, 2008) has revolutionized paleoclimatic studies of dunes, as the only requirement is the presence of quartz, which is rarely an issue with aeolian sand. Recent studies of the dunefields in the Sahara, the SinaieNegev erg, and the Arabian Peninsula, with good OSL geochronology, have yielded important paleoclimatic information in Mauritania (Lancaster et al, 2002), Egypt and Sudan (Bubenzer et al, 2007), Israel (Roskin et al, 2011a(Roskin et al, , 2011b and Arabia (Goudie et al, 2000;Preusser et al, 2002Preusser et al, , 2005Atkinson et al, 2011Atkinson et al, , 2012, as well as regional syntheses (Swezy, 2001;Glennie and Singhvi, 2002;Lancaster, 2007Lancaster, , 2008Singhvi and Porat, 2008). One conclusion common to these studies is that dunes over a wide region were very active during the Last Glacial Maximum (LGM), but dune activity diminished at the close of the Last Glacial period, a concept articulated earlier by Sarnthein (1978).…”
Section: Introductionmentioning
confidence: 99%
“…Those dunes in the north and east within about 100 km of the Arabian Gulf are much more calcareous, but the carbonates remain at secondary amounts, either as dolomite or calcite [18]. Even in the extreme northeast of the desert, the sediment is still quartzitic, with distinct deeper reddish shades.…”
Section: Mineralogical Compositionmentioning
confidence: 99%
“…Different formations in the Zagros confirm the likely probability of that range being the chief source of Empty Quarter sediment. Most scientists place the creation of the sand seas in the Pleistocene -it's just a matter of when in the epoch, variations ranging in the hundreds-of-thousands of years [18]. The latter authors placed the sands of the extreme northeast of the desert in the latest Pleistocene and earliest Holocene and said that it happened during a single, rapid accretionary phase.…”
Section: Possible Provenancementioning
confidence: 99%