Arid
DOI10.1016/j.yqres.2011.04.003
Late Quaternary chronology of major dune ridge development in the northeast Rub’ al-Khali, United Arab Emirates
Atkinson, Oliver A. C.1; Thomas, David S. G.1,2; Goudie, Andrew S.1,3; Bailey, Richard M.1
通讯作者Atkinson, Oliver A. C.
来源期刊QUATERNARY RESEARCH
ISSN0033-5894
出版年2011
卷号76期号:1页码:93-105
英文摘要

The northeastern sector of the Rub’ al-Khali desert in the eastern United Arab Emirates (UAE) is dominated by large NE-SW trending dune ridges orientated perpendicular to the currently prevailing northwesterly wind regime. In this study, extensive use has been made of artificially exposed sections through these major dune ridges that reveal internal sedimentary structures and allow an intensive, high-resolution sampling programme to be carried out. Here, we present the optical dating results for samples from 7 sections. The results indicate that dune activity and preservation occurred within the periods 7-3 ka, 16-10 ka and 22-20 ka with evidence of earlier preservation during marine oxygen isotope stages MIS 3 and 5, with net accumulation rates in the range 2.2-25 m.ka(-1). In several instances, hiatuses in the preserved record of dune accumulation coincide with stratigraphic bounding surfaces visible in the exposed section profiles with associated truncation of internal sedimentary structures. Caution must be exercised when interpreting such gaps in the recorded accumulation chronologies of these dunes since these may simply constitute phases of low preservation potential rather than phases of low aeolian activity. Other factors such as sediment supply and availability in relation to sea-level dynamics may be significant and are also considered. (C) 2011 University of Washington. Published by Elsevier Inc. All rights reserved.


英文关键词Linear dunes OSL dating Rub’ al-Khali Arabia Shamaal Indian Ocean monsoon Late Quaternary
类型Article
语种英语
国家England ; South Africa
收录类别SCI-E
WOS记录号WOS:000292175700009
WOS关键词INDIAN-OCEAN CLIMATE ; SULTANATE-OF-OMAN ; WAHIBA SAND SEA ; SOUTHERN ARABIA ; HIGH-RESOLUTION ; HOLOCENE LAKES ; PERSIAN-GULF ; PLEISTOCENE ; DESERT ; RECORD
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
来源机构University of Oxford
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/170223
作者单位1.Univ Oxford, Sch Geog & Environm, Oxford OX1 3QY, England;
2.Univ Cape Town, Dept Environm & Geog Sci, ZA-7700 Rondebosch, South Africa;
3.Univ Oxford St Cross Coll, Oxford OX1 3LZ, England
推荐引用方式
GB/T 7714
Atkinson, Oliver A. C.,Thomas, David S. G.,Goudie, Andrew S.,等. Late Quaternary chronology of major dune ridge development in the northeast Rub’ al-Khali, United Arab Emirates[J]. University of Oxford,2011,76(1):93-105.
APA Atkinson, Oliver A. C.,Thomas, David S. G.,Goudie, Andrew S.,&Bailey, Richard M..(2011).Late Quaternary chronology of major dune ridge development in the northeast Rub’ al-Khali, United Arab Emirates.QUATERNARY RESEARCH,76(1),93-105.
MLA Atkinson, Oliver A. C.,et al."Late Quaternary chronology of major dune ridge development in the northeast Rub’ al-Khali, United Arab Emirates".QUATERNARY RESEARCH 76.1(2011):93-105.
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