Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1080/03736245.2020.1775689 |
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
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ISSN | 0373-6245 |
EISSN | 2151-2418 |
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 |
推荐引用方式 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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