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DOI	10.3390/geosciences9080345
	133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction
	Lopez-Gonzalez, Nieves; Alonso, Belen; Juan, Carmen; Ercilla, Gemma; Bozzano, Graziella; Cacho, Isabel; Casas, David; Palomino, Desiree; Vazquez, Juan-Tomas; Estrada, Ferran; Barcenas, Patricia; d'Acremont, Elia; Gorini, Christian; El Moumni, Bouchta
通讯作者	Lopez-Gonzalez, N
来源期刊	GEOSCIENCES
EISSN	2076-3263
出版年	2019
卷号	9 期号:8
英文摘要	The Djibouti Ville Drift is part of a contourite depositional system located on the southern side of the Djibouti Ville Seamount in the Alboran Sea (Western Mediterranean). The sedimentary record of a core located in the drift deposits has been characterized to achieve the possible sediment sources for the Saharan dust supply and the paleocurrent variability related to Mediterranean intermediate waters for the last 133 kyr. Three end-member grain-size distributions characterize the sediment record transported by the bottom current to address the different aeolian populations, i.e., coarse EM1, silty EM2, and fine EM3. For these particles, the most likely source areas are the Saharan sedimentary basins and deserts, as well as the cratonic basins of the Sahara-Sahel Dust Corridor. The prevalence of these main source areas is shown in the core record, where a noticeable change occurs during the MIS 5 to MIS 4 transition. Some punctual sediment inputs from the seamount have been recognized during sea-level lowstand, but there is no evidence of fluvial supply in the drift deposits. The paleocurrent reconstruction allows the characterizing of the stadial and cold periods by large increases in the mean sortable silt fraction and UP10, which point to an enhanced bottom current strength related to intermediate water masses. Conversely, interglacial periods are characterized by weaker bottom current activity, which is associated with denser deep water masses. These proxies also recorded the intensified Saharan wind transport that occurred during interstadial/stadial transitions. All these results point to the importance of combining sediment source areas with major climatic oscillations and paleocurrent variability in palaeoceanographic sedimentary archives, which may help to develop future climate prediction models.
英文关键词	contourite drift aeolian sediment sources paleocurrent proxies Mediterranean intermediate water masses Djibouti Ville Seamount Alboran Sea
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	ESCI
WOS记录号	WOS:000482981000033
WOS关键词	DEEP-WATER CIRCULATION ; MEDITERRANEAN THERMOHALINE CIRCULATION ; LEVANTINE INTERMEDIATE WATER ; LAST 50,000 YR ; SAHARAN DUST ; CLIMATIC VARIABILITY ; TEMPERATURE-CHANGES ; SCALE ; CALIBRATION ; MARINE
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/333768
作者单位	[Lopez-Gonzalez, Nieves; Palomino, Desiree; Vazquez, Juan-Tomas; Barcenas, Patricia] IEO, CO Malaga, Malaga 29640, Spain; [Alonso, Belen; Juan, Carmen; Ercilla, Gemma; Estrada, Ferran] CSIC, Inst Ciencias Mar, E-08003 Barcelona, Spain; [Bozzano, Graziella] Serv Hidrog Naval, Div Geol & Geofis Marina, C1270ABV, Buenos Aires, DF, Argentina; [Cacho, Isabel] Univ Barcelona, Fac Ciencias Tierra, Dept Dinam Tierra & Oceano, E-08028 Barcelona, Spain; [Casas, David] IGME, Madrid 28003, Spain; [d'Acremont, Elia; Gorini, Christian] UPMC Univ Paris 06, ISTEP, Sorbonne Univ, F-75005 Paris, France; [d'Acremont, Elia; Gorini, Christian] CNRS, UMR 7193, F-75005 Paris, France; [El Moumni, Bouchta] Univ Abdelmalek Essaadi, FST, Tangier 90000, Morocco
推荐引用方式 GB/T 7714	Lopez-Gonzalez, Nieves,Alonso, Belen,Juan, Carmen,et al. 133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction[J],2019,9(8).
APA	Lopez-Gonzalez, Nieves.,Alonso, Belen.,Juan, Carmen.,Ercilla, Gemma.,Bozzano, Graziella.,...&El Moumni, Bouchta.(2019).133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction.GEOSCIENCES,9(8).
MLA	Lopez-Gonzalez, Nieves,et al."133,000 Years of Sedimentary Record in a Contourite Drift in the Western Alboran Sea: Sediment Sources and Paleocurrent Reconstruction".GEOSCIENCES 9.8(2019).