DOI: 10.1016/j.earscirev.2018.11.011
论文题名: Wave-ravinement surfaces: Classification and key characteristics
作者: Zecchin M. ; Catuneanu O. ; Caffau M.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2019
卷: 188 起始页码: 210
结束页码: 239
语种: 英语
中文关键词: Classification
; Onlap shell beds
; sequence stratigraphy
; Transgressive lags
; Transgressive models
; Wave-ravinement surface
英文关键词: deposition
; lithology
; outcrop
; reconstruction
; sea level change
; sequence stratigraphy
; shallow water
; surface wave
英文摘要: The wave-ravinement surface (WRS) is a surface of sequence-stratigraphic significance that forms in shallow-water settings during transgression. It develops progressively landward during shoreface retreat due to wave action, which erodes the substrate and leads to sediment bypass in the offshore direction. The WRS may rework previously formed surfaces, such as the maximum regressive surface (also known as the transgressive surface) and the subaerial unconformity, becoming a systems tract and/or sequence boundary. Due to the associated lithological contrast between underlying and overlying deposits and the presence of lags and/or shell pavements, the WRS has a very good appearance in both outcrop and cores and is often used as the boundary of shallow-marine stratigraphic sequences. The WRS, therefore, represents an important lithological and paleo-environmental break, and its recognition is significant for reconstructing stratigraphic architectures and the history of relative sea-level change, as well as for reservoir characterization. Several controlling factors govern the development of the WRS and of the associated deposits; they include the accommodation to sedimentation (A/S) ratio, environmental energy, topographic gradient, roughness and lithology of the substrate. Relatively low rates of relative sea-level rise and sediment supply, high wave energy, steep topographies and easily erodible substrates favor the development of the WRS. These factors interact, leading to a high variability in the amount of erosion, shape, length along depositional dip and deposits associated with these surfaces. WRSs may be classified based on either underlying or overlying deposits, or a combination of both. A classification based on the deposits that underlie the WRS helps to determine the location of the studied outcrop along depositional dip, whereas a classification based on the deposits that overlie the WRS afford insights into the physical conditions that accompanied its formation. However, the best description of the WRS in terms of location of a considered outcrop, physical conditions under which the WRS developed and their lateral variability, type of substrate, as well as its practical significance for reservoir modeling is achieved with a combination of the two criteria. © 2018 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165974
Appears in Collections: 气候变化与战略
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作者单位: Istituto Nazionale di Oceanografia e di Geofisica Sperimentale – OGS, Borgo Grotta Gigante 42/c, Sgonico, 34010, Italy; Department of Earth and Atmospheric Sciences, University of Alberta, 1-26 Earth Sciences Building, Edmonton, Alberta T6G 2E3, Canada
Recommended Citation:
Zecchin M.,Catuneanu O.,Caffau M.. Wave-ravinement surfaces: Classification and key characteristics[J]. Earth Science Reviews,2019-01-01,188