Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075139 |
Durable Terrestrial Bedrock Predicts Submarine Canyon Formation | |
Smith, M. Elliot1; Finnegan, Noah J.2; Mueller, Erich R.3; Best, Rebecca J.1 | |
2017-10-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:20 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Though submarine canyons are first-order topographic features of Earth, the processes responsible for their occurrence remain poorly understood. Potentially analogous studies of terrestrial rivers show that the flux and caliber of transported bedload are significant controls on bedrock incision. Here we hypothesize that coarse sediment load could exert a similar role in the formation of submarine canyons. We conducted a comprehensive empirical analysis of canyon occurrence along the West Coast of the contiguous United States which indicates that submarine canyon occurrence is best predicted by the occurrence of durable crystalline bedrock in adjacent terrestrial catchments. Canyon occurrence is also predicted by the flux of bed sediment to shore from terrestrial streams. Surprisingly, no significant correlation was observed between canyon occurrence and the slope or width of the continental shelf. These findings suggest that canyon incision is promoted by greater yields of durable terrestrial clasts to the shore. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000416761600031 |
WOS关键词 | NORTHERN CALIFORNIA ; CONTINENTAL SHELVES ; TURBIDITY CURRENTS ; SOUTHERN CALIFORNIA ; SEDIMENT ; FLOWS ; OFFSHORE ; EROSION ; TRANSPORT ; EVOLUTION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/27185 |
专题 | 气候变化 |
作者单位 | 1.No Arizona Univ, Sch Earth Sci & Environm Sustainabil, Flagstaff, AZ 86011 USA; 2.Univ Calif Santa Cruz, Dept Earth & Planetary Sci, Santa Cruz, CA 95064 USA; 3.Univ Wyoming, Dept Geog, Laramie, WY 82071 USA |
推荐引用方式 GB/T 7714 | Smith, M. Elliot,Finnegan, Noah J.,Mueller, Erich R.,et al. Durable Terrestrial Bedrock Predicts Submarine Canyon Formation[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(20). |
APA | Smith, M. Elliot,Finnegan, Noah J.,Mueller, Erich R.,&Best, Rebecca J..(2017).Durable Terrestrial Bedrock Predicts Submarine Canyon Formation.GEOPHYSICAL RESEARCH LETTERS,44(20). |
MLA | Smith, M. Elliot,et al."Durable Terrestrial Bedrock Predicts Submarine Canyon Formation".GEOPHYSICAL RESEARCH LETTERS 44.20(2017). |
条目包含的文件 | 条目无相关文件。 |
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。
修改评论