Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/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
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ISSN | 0033-5894 |
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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