DOI: 10.1002/grl.50629
论文题名: Sediment undulations induced by free gas in muddy marine sediments: A modeling approach
作者: Katsman R.
刊名: Geophysical Research Letters
ISSN: 0094-8826
EISSN: 1944-8557
出版年: 2013
卷: 40, 期: 13 起始页码: 3379
结束页码: 3383
语种: 英语
英文关键词: damage evolution
; fracture mechanics
; gas bubbles
; muddy sediment
; sediment fracturing
; sediment undulations
Scopus关键词: Damage evolution
; Effective mechanical properties
; Gas bubble
; Muddy sediments
; Nonuniform stress fields
; Sediment deposition
; Sediment properties
; Theoretical investigations
; Creep
; Deposition
; Fracture mechanics
; Submarine geology
; Sediments
; bubble
; continental shelf
; delta
; deposition
; fine grained sediment
; fracture mechanics
; marine sediment
; mud
; numerical model
; stress field
英文摘要: Sediment undulations observed on the continental shelf in muddy prodeltas are often marked by the presence of gas in the upslope location. The growth and migration of bubbles within fine-grained muddy sediments are associated with sediment fracturing that damages the sediment and changes its effective mechanical properties. The presented theoretical investigation demonstrates by modeling that undulations may be induced by creep deformations downslope from the region with gas presence. Comparison of the dimensions of the modeled undulations with the observed ones suggests that the undulations may be enhanced over time by different processes, e.g., by the different types of the sediment deposition. Key Points Free gas in muddy sediment may induce sediment undulations down-slope Fracturing changes sediment properties and creates a nonuniform stress field Once originated by the creep, undulations can be enhanced by sediment deposition ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880834057&doi=10.1002%2fgrl.50629&partnerID=40&md5=9231889831c924503de715ba8ca2763e
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6090
Appears in Collections: 气候减缓与适应
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作者单位: Dr. Moses Strauss Department of Marine Geosciences, Faculty of Science and Science Education, University of Haifa, Haifa 31905, Israel
Recommended Citation:
Katsman R.. Sediment undulations induced by free gas in muddy marine sediments: A modeling approach[J]. Geophysical Research Letters,2013-01-01,40(13).