DOI: 10.1016/j.gloplacha.2017.03.008
论文题名: Fluvial response to the last Holocene rapid climate change in the Northwestern Mediterranean coastlands
作者: Degeai J.-P. ; Devillers B. ; Blanchemanche P. ; Dezileau L. ; Oueslati H. ; Tillier M. ; Bohbot H.
刊名: Global and Planetary Change
ISSN: 0921-8181
出版年: 2017
卷: 152 起始页码: 176
结束页码: 186
语种: 英语
英文关键词: Fluvial dynamics
; Historical flooding
; Lagoonal sequence
; Late Holocene
; North Atlantic cooling
; Northwestern Mediterranean
Scopus关键词: Analytical geochemistry
; Dynamics
; Floods
; Fluvial dynamics
; Lagoonal sequence
; Late Holocene
; North Atlantic
; Northwestern Mediterranean
; Climate change
英文摘要: The variability of fluvial activity in the Northwestern Mediterranean coastal lowlands and its relationship with modes of climate change were analysed from the late 9th to the 18th centuries CE. Geochemical analyses were undertaken from a lagoonal sequence and surrounding sediments in order to track the fluvial inputs into the lagoon. An index based on the K/S and Rb/S ratios was used to evidence the main periods of fluvial activity. This index reveals that the Medieval Climate Anomaly (MCA) was a drier period characterized by a lower fluvial activity, while the Little Ice Age (LIA) was a wetter period with an increase of the river dynamics. Three periods of higher than average fluvial activity were evidenced at the end of the first millennium CE (ca. 900–950 cal yr CE), in the first half of the second millennium CE (ca. 1150–1550 cal yr CE), and during the 1600s–1700s CE (ca. 1650–1800 cal yr CE). The comparison of these fluvial periods with other records of riverine or lacustrine floods in Spain, Italy, and South of France seems to indicate a general increase in fluvial and flood patterns in the Northwestern Mediterranean in response to the climate change from the MCA to the LIA, although some episodes of flooding are not found in all records. Besides, the phases of higher than average fluvial dynamics are in good agreement with the North Atlantic cold events evidenced from records of ice-rafted debris. The evolution of fluvial activity in the Northwestern Mediterranean coastlands during the last millennium could have been driven by atmospheric and oceanic circulation patterns. © 2017 Elsevier B.V. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016631264&doi=10.1016%2fj.gloplacha.2017.03.008&partnerID=40&md5=e555e6fc89dc1d09b419daa2dd8906c3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/11732
Appears in Collections: 全球变化的国际研究计划 气候变化与战略
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作者单位: ASM UMR5140, Université Montpellier 3, CNRS, MCC, Montpellier, France
Recommended Citation:
Degeai J.-P.,Devillers B.,Blanchemanche P.,et al. Fluvial response to the last Holocene rapid climate change in the Northwestern Mediterranean coastlands[J]. Global and Planetary Change,2017-01-01,152.