干旱区生态环境知识资源中心(Arid): Finding Dry Spells in Ocean Sediments

Arid

DOI	10.5670/oceanog.2019.120
	Finding Dry Spells in Ocean Sediments
	Gallagher, Stephen J.1; deMenocal, Peter B.2
通讯作者	Gallagher, Stephen J.
来源期刊	OCEANOGRAPHY
ISSN	1042-8275
出版年	2019
卷号	32 期号:1 页码:60-63
英文摘要	Ocean basins are the ultimate repositories of sediment. Their slow, continuous accumulation over geologic history provides valuable archives that document major climate events and transitions in Earth history. Mineral dust plumes borne by prevailing winds are dominant sources of terrigenous sedimentation off regions such as the Saharan, Arabian, Kalahari, Patagonian, and Australian deserts. Scientific ocean drilling off Africa and Arabia has recorded consistent glacial-stage increases in eolian dust fluxes throughout the Pliocene-Pleistocene, where elevated dust flux values during glacial periods and stadia have been interpreted as reflecting real hydroclimate progression toward greater glacial aridity. International Ocean Discovery Program Expeditions 356, 363, and 369 (conducted in 2015, 2016, and 2017, respectively) recovered extensive sedimentary climate archives off Australia. Ongoing analyses of these strata reveal a marine record of the onset of continental aridity as Australia migrated northward by 25 over the last 50 million years. These Southern Hemisphere oceanic records will continue to yield key information on global climate evolution, allowing us to understand how deserts and monsoonal systems have evolved through time.
类型	Article
语种	英语
国家	Australia ; USA
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000461760800016
WOS关键词	DUST TRANSPORT ; PLIOCENE ; CLIMATE ; AUSTRALIA ; ARIDITY ; RECORD ; ONSET ; FLUX
WOS类目	Oceanography
WOS研究方向	Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217802
作者单位	1.Univ Melbourne, Sch Earth Sci, Melbourne, Vic, Australia; 2.Columbia Univ, Dept Earth & Environm Sci, New York, NY USA
推荐引用方式 GB/T 7714	Gallagher, Stephen J.,deMenocal, Peter B.. Finding Dry Spells in Ocean Sediments[J],2019,32(1):60-63.
APA	Gallagher, Stephen J.,&deMenocal, Peter B..(2019).Finding Dry Spells in Ocean Sediments.OCEANOGRAPHY,32(1),60-63.
MLA	Gallagher, Stephen J.,et al."Finding Dry Spells in Ocean Sediments".OCEANOGRAPHY 32.1(2019):60-63.