Special-Variability in terrigenous sedimentation processes off northwest Africa and its relation to climate changes

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	Special-Variability in terrigenous sedimentation processes off northwest Africa and its relation to climate changes
	Holz C (Holz ; Christine)1 ; Stuut JBW (Stuut ; Jan-Berend W.)1 ; HenrIch R (Henrich ; Rudiger)1 ; Meggers H (Meggers ; Helge
发表期刊	SEDIMENTARY GEOLOGY
ISSN	0037-0738
	2007
卷号	202 期号:3 页码:499-508
关键词	Last Glacial Maximum Late Quaternary Humid Period Atlantic Dust Sea Sahara Wind Circulation Insolation
通讯作者	Holz, C
英文摘要	Variations in deposition of terrigerrous fine sediments and their grain-size distributions from a high-resolution marine sediment record offshore northwest Africa (30 degrees 51.0'N; 10 degrees 16. 1'W) document climate changes on the African continent during the Holocene. End-member grain-size distributions of the terrigenous silt fraction, which are related to fluvial and aeolian dust transport, indicate millennial-scale variability in the dominant transport processes at the investigation site off northwest Africa as well as recurring periods of dry conditions in northwest Africa during the Holocene. The terrigenous record from the subtropical North Atlantic reflects generally humid conditions before the Younger Dryas, during the early to mid-Holocene, as well as after 1.3 kyr BP. By contrast, continental runoff was reduced and and conditions were prevalent at the beginning of the Younger Dryas and during the mid- and late Holocene. A comparison with high- and low-latitude Holocene climate records reveals a strong link between northwest African climate and Northern Hemisphere atmospheric circulation throughout the Holocene. Due to its proximal position, close to an ephemeral river system draining the Atlas Mountains as well as the adjacent Saharan desert, this detailed marine sediment record, which has a temporal resolution between 15 and 120 years, is ideally suited to enhance our understanding of ocean-continent-atmosphere interactions in African climates and the hydrological cycle of northern Africa after the last deglaciation. (c) 2007 Elsevier B.V. All rights reserved.
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/4649
专题	科研共享资源
推荐引用方式 GB/T 7714	Holz C (Holz,Christine)1,Stuut JBW (Stuut,et al. Special-Variability in terrigenous sedimentation processes off northwest Africa and its relation to climate changes[J]. SEDIMENTARY GEOLOGY,2007,202(3):499-508.
APA	Holz C .,Christine)1.,Stuut JBW .,Jan-Berend W.)1.,HenrIch R .,...&Helge.(2007).Special-Variability in terrigenous sedimentation processes off northwest Africa and its relation to climate changes.SEDIMENTARY GEOLOGY,202(3),499-508.
MLA	Holz C ,et al."Special-Variability in terrigenous sedimentation processes off northwest Africa and its relation to climate changes".SEDIMENTARY GEOLOGY 202.3(2007):499-508.

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