Arid
DOI10.1080/03736245.2020.1775689
Development of cosmogenic nuclide capabilities in South Africa and applications in Southern African geomorphology
Makhubela, Tebogo V.1; Winkler, Stephan R.2; Mbele, Vela2; Kramers, Jan D.1; Khosa, Rivoningo R.1,2; Moabi, Hendric P.2,3; Konyana, Sibusiso M.1
通讯作者Makhubela, Tebogo V.
来源期刊SOUTH AFRICAN GEOGRAPHICAL JOURNAL
ISSN0373-6245
EISSN2151-2418
出版年2020
英文摘要

Cosmogenic nuclide (CN) applications offer methods to quantify rates of landscape change and of dating geomorphological deposits and surfaces. Over the past two decades, CNs have been used to determine denudation rates, constrain uplift rates and determine burial ages of sediments in different geomorphological settings across the Southern African landscape. Here, we first give an overview of the landscape evolution of Southern Africa and how CN-based studies have contributed to this subject. Then we give a compilation of CN denudation data from Southern Africa, which show that average erosion rates have decreased by an order of magnitude since the late Cenozoic. Finally, we present the state of CN infrastructure and capabilities in South Africa as well as envisaged future developments. An Accelerator Mass Spectrometer (AMS) has become operational for carbon-14, beryllium-10 and aluminium-26 measurements at the National Research Foundation (NRF) iThemba Laboratory for Accelerator Based Sciences (LABS) in Gauteng since 2017. The measurements' accuracy and precision compare well with other AMS laboratories internationally. Local sample preparation laboratories are currently available with limited capabilities and are mostly still under development.


英文关键词Southern African Landscape cosmogenic nuclides denudation rates Great Escarpment
类型Article ; Early Access
语种英语
国家South Africa
收录类别SSCI
WOS记录号WOS:000545390900001
WOS关键词PASSIVE MARGIN DENUDATION ; LANDSCAPE EVOLUTION ; EROSION RATES ; NAMIB DESERT ; HALF-LIFE ; BE-10 ; SEDIMENT ; ESCARPMENT ; ROCK ; HUMANKIND
WOS类目Geography
WOS研究方向Geography
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/319800
作者单位1.Univ Johannesburg, Dept Geol, Johannesburg, South Africa;
2.iThemba LABS, TAMS Dept, Johannesburg, South Africa;
3.North West Univ, Ctr Appl Radiat Sci & Technol, Mafikeng, South Africa
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GB/T 7714
Makhubela, Tebogo V.,Winkler, Stephan R.,Mbele, Vela,et al. Development of cosmogenic nuclide capabilities in South Africa and applications in Southern African geomorphology[J],2020.
APA Makhubela, Tebogo V..,Winkler, Stephan R..,Mbele, Vela.,Kramers, Jan D..,Khosa, Rivoningo R..,...&Konyana, Sibusiso M..(2020).Development of cosmogenic nuclide capabilities in South Africa and applications in Southern African geomorphology.SOUTH AFRICAN GEOGRAPHICAL JOURNAL.
MLA Makhubela, Tebogo V.,et al."Development of cosmogenic nuclide capabilities in South Africa and applications in Southern African geomorphology".SOUTH AFRICAN GEOGRAPHICAL JOURNAL (2020).
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