中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Event-driven sediment flux in Hueneme and Mugu submarine canyons, southern California

文献类型:期刊论文

作者Xu, J. P.1; Swarzenski, Peter W.1; Noble, Marlene2; Li, An-Chun3
刊名MARINE GEOLOGY
出版日期2010-02-15
卷号269期号:1-2页码:74-88
关键词sediment traps sediment flux submarine canyons turbidity currents
英文摘要Vertical sediment fluxes and their dominant controlling processes in Hueneme and Mugu submarine canyons off south-central California were assessed using data from sediment traps and current meters on two moorings that were deployed for 6 months during the winter of 2007. The maxima of total particulate flux, which reached as high as 300+g/m(2)/day in Hueneme Canyon, were recorded during winter storm events when high waves and river floods often coincided. During these winter storms, wave-induced resuspension of shelf sediment was a major source for the elevated sediment fluxes. Canyon rim morphology, rather than physical proximity to an adjacent river mouth, appeared to control the magnitude of sediment fluxes in these two submarine canyon systems. Episodic turbidity currents and internal bores enhanced sediment fluxes, particularly in the lower sediment traps positioned 30 m above the canyon floor. Lower excess (210)Pb activities measured in the sediment samples collected during periods of peak total particulate flux further substantiate that reworked shelf-, rather than newly introduced river-borne, sediments supply most of the material entering these canyons during storms. Published by Elsevier B.V.
收录类别SCI
语种英语
WOS记录号WOS:000274874100006
源URL[http://ir.qdio.ac.cn/handle/337002/32702]  
专题海洋研究所_海洋地质与环境重点实验室
作者单位1.US Geol Survey, Santa Cruz, CA 95060 USA
2.US Geol Survey, Menlo Pk, CA 94025 USA
3.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
推荐引用方式
GB/T 7714
Xu, J. P.,Swarzenski, Peter W.,Noble, Marlene,et al. Event-driven sediment flux in Hueneme and Mugu submarine canyons, southern California[J]. MARINE GEOLOGY,2010,269(1-2):74-88.
APA Xu, J. P.,Swarzenski, Peter W.,Noble, Marlene,&Li, An-Chun.(2010).Event-driven sediment flux in Hueneme and Mugu submarine canyons, southern California.MARINE GEOLOGY,269(1-2),74-88.
MLA Xu, J. P.,et al."Event-driven sediment flux in Hueneme and Mugu submarine canyons, southern California".MARINE GEOLOGY 269.1-2(2010):74-88.

入库方式: OAI收割

来源:海洋研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。