干旱区生态环境知识资源中心(Arid): Fluvial sediments and playa deposits of the Naukluft Mts. foreland and Tsauchab Valley, Namibia - New insights from key sections in the Late Quaternary landscape and climate change in Southern Africa

Arid

DOI	10.1127/zfg/2021/0705
	Fluvial sediments and playa deposits of the Naukluft Mts. foreland and Tsauchab Valley, Namibia - New insights from key sections in the Late Quaternary landscape and climate change in Southern Africa
	Voelkel, Joerg; Bens, Oliver; Eden, Marie; Krauss, Lydia; Murray, Andrew S.; Heine, Klaus
通讯作者	Volkel, J (corresponding author), Tech Univ Munich TUM, Geomorphol & Soil Sci GEoBoKu, Munich, Germany.
来源期刊	ZEITSCHRIFT FUR GEOMORPHOLOGIE
ISSN	0372-8854
出版年	2021
卷号	62 期号:4 页码:313-350
英文摘要	Dryland slopes, fluvial fans and terraces are recognized as highly sensitive process-response systems and important geoarchives for the reconstruction of palaeoclimatic driven landscape development in Southern Africa. The aim of this study is to study a dryland drainage system with a clearly limited regional catchment area, whose drainage and sedimentation behavior is unaffected by distant meteorological events or changes in climatic outside the region. Our results highlight for the first time the widespread occurrence of fluvial and lacustrine sediments in the Naukluft Mts. foreland as part of the Great Escarpment and their potential as Late Quaternary geoarchives. The region's special interest and overarching value lies (i) in the bounded catchments of both the lacustrine BtillsPort Playa and the ephemeral rivers Tsauchab and Tsondab within the South African Great Escarpment and (ii) in the rivers' endorheic character and dead ends within the Namib Sand Sea to the West. All these lacustrine and fluvial systems first and foremost exclude supra-regional influences within the flow regime. Uniquely, the key palaeoclimatic question of periodical shifts of the rainfall zones during Holocene and Late Glacial times can be studied in both these catchments. This study also combines new data from the semi-desert environment of the Naukluft Mts. with data from the terminus sites Sossusvlei and Tsondabvlei within the Namib dunes. From our interpretation of the desert flash flood series, the drainage history from pre-LGM times within MIS 3 up to modem times is represented in our data. The Late Tennination I was the period with the highest flow rates post MES3, raising the Urikos Terrace. This must have been caused by strong monsoonal rainfall events from summer TTT, giving rise to extreme flash floods. Little Ice Age sediments have filled the entire thalweg, with the exception of remnant Holocene to MIS 3 terraces to the sides and provide a unique framework for ecological conditions.
英文关键词	Slack water deposit OSL 14C climate fluctuations shifting rainfall zones
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000635544300004
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/2XILL650/352009
作者单位	[Voelkel, Joerg; Eden, Marie; Krauss, Lydia] Tech Univ Munich TUM, Geomorphol & Soil Sci GEoBoKu, Munich, Germany; [Bens, Oliver] Helmholtz Ctr Potsdam GFZ German Res Ctr Geosci, Potsdam, Germany; [Eden, Marie] Leibniz Univ Hannover, Hannover, Germany; [Krauss, Lydia] Bundesanstalt Geowissensch & Rohstoffe BGR, Hannover, Germany; [Murray, Andrew S.] Aarhus Univ, Dept Geol, Nordic Lab Luminescence Dating, DTU Riso Campus, Aarhus, Denmark; [Heine, Klaus] Univ Regensburg, Regensburg, Germany
推荐引用方式 GB/T 7714	Voelkel, Joerg,Bens, Oliver,Eden, Marie,et al. Fluvial sediments and playa deposits of the Naukluft Mts. foreland and Tsauchab Valley, Namibia - New insights from key sections in the Late Quaternary landscape and climate change in Southern Africa[J],2021,62(4):313-350.
APA	Voelkel, Joerg,Bens, Oliver,Eden, Marie,Krauss, Lydia,Murray, Andrew S.,&Heine, Klaus.(2021).Fluvial sediments and playa deposits of the Naukluft Mts. foreland and Tsauchab Valley, Namibia - New insights from key sections in the Late Quaternary landscape and climate change in Southern Africa.ZEITSCHRIFT FUR GEOMORPHOLOGIE,62(4),313-350.
MLA	Voelkel, Joerg,et al."Fluvial sediments and playa deposits of the Naukluft Mts. foreland and Tsauchab Valley, Namibia - New insights from key sections in the Late Quaternary landscape and climate change in Southern Africa".ZEITSCHRIFT FUR GEOMORPHOLOGIE 62.4(2021):313-350.