Arid
DOI10.1016/j.geomorph.2008.07.015
Geomorphological contributions to palaeolimnology on the African continent
Burrough, Sallie L.1; Thomas, David S. G.1,2
通讯作者Burrough, Sallie L.
来源期刊GEOMORPHOLOGY
ISSN0169-555X
出版年2009
卷号103期号:3页码:285-298
英文摘要

Lakes are highly informative repositories of information of the terrestrial response to regional and global climate drivers. in Quaternary studies lake floor records are now frequently used to establish the magnitude, timing and geographical extent of humid/arid transitions over timescales of 10(2)-10(4) years. while the resolution of this record is unparalleled much of the geochemical and sedimentary data is challenging to interpret and highly basin-specific. Geomorphological proxies, particularly shorelines, offer an additional or alternative record of lake history, with recent technological advances facilitating both access to, and the utility of, this proxy record. Recent advances in Optically Stimulated Luminescence (OSL) dating allow the determination of the age of beach ridge emplacement in the absence of organic material, while the availability of Shuttle Radar Topography Mission (SRTM) data, in conjunction with Digital Elevation Models (DEM), aids in the identification of shoreline features and the topographic reconstruction of the former extent of palaeolakes. Here we highlight and illustrate the use of lacustrine shoreline features for unravelling a Quaternary climate signal within Africa from otherwise inaccessible and undatable palaeolake records in the semi-arid and and subtropics and identify their contribution towards high resolution multiproxy reconstructions of tropical low latitude Quaternary environments and climates. (C) 2008 Elsevier B.V. All rights reserved.


英文关键词Quaternary Beach Ridge Shoreline Lake Multiproxy OSL
类型Review
语种英语
国家England ; South Africa
收录类别SCI-E
WOS记录号WOS:000261871100001
WOS关键词LAKE-LEVEL FLUCTUATIONS ; BEACH-RIDGE DEVELOPMENT ; LAST GLACIAL MAXIMUM ; LATE PLEISTOCENE ; CLIMATIC-CHANGE ; EAST-AFRICA ; PRETORIA SALTPAN ; SOUTHERN AFRICA ; MIDDLE KALAHARI ; DIATOM RECORD
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向Physical Geography ; Geology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/160785
作者单位1.Univ Oxford, Ctr Environm, Sch Geog, Oxford OX1 3QY, England;
2.Univ Cape Town, Dept Environm & Geog Sci, ZA-7701 Rondebosch, South Africa
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GB/T 7714
Burrough, Sallie L.,Thomas, David S. G.. Geomorphological contributions to palaeolimnology on the African continent[J],2009,103(3):285-298.
APA Burrough, Sallie L.,&Thomas, David S. G..(2009).Geomorphological contributions to palaeolimnology on the African continent.GEOMORPHOLOGY,103(3),285-298.
MLA Burrough, Sallie L.,et al."Geomorphological contributions to palaeolimnology on the African continent".GEOMORPHOLOGY 103.3(2009):285-298.
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