Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1029/98GL01845 |
Morphologic dating of slowly evolving scarps using a diffusive analogue | |
Niviere, B; Marquis, G; Maurin, JC | |
通讯作者 | Niviere, B |
来源期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
出版年 | 1998 |
卷号 | 25期号:13页码:2325-2328 |
英文摘要 | Morphologic dating techniques that have been applied successfully in arid and semi-arid areas are also suitable for slowly evolving scarps that are usually found in temperate climate environments. Two approaches, based on diffusion, to relate the present-day shape of a scarp to its age are used here. The I il st assumes a model of scarp degradation based on a diffusive process (D method). The second evaluates the state of scarp degradation using the slope distribution along a topographic profile (SD method). Based on an anthropic scarp of known age, we have obtained a mass diffusivity close to 1.5 m(2)/ka, a reasonable value lot areas characterized by a continuous vegetation cover and a temperate climate. We show that the SD method requires an are correction, since it does not take into account the earliest stage for which the mid-height point is not yet affected by erosion. However only the SD method reveals that at several profiles a later scarp reactivation event has occurred. Such inform mation can be important when trying to identify the recent geological or environmental events that have affected a region. |
类型 | Article |
语种 | 英语 |
国家 | France |
收录类别 | SCI-E |
WOS记录号 | WOS:000074700200020 |
WOS关键词 | FAULT SCARPS ; DEGRADATION ; LANDFORMS ; PROFILES |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/135819 |
作者单位 | (1)Univ Strasbourg 1, EOST, UMR CNRS 7516, F-67084 Strasbourg, France |
推荐引用方式 GB/T 7714 | Niviere, B,Marquis, G,Maurin, JC. Morphologic dating of slowly evolving scarps using a diffusive analogue[J],1998,25(13):2325-2328. |
APA | Niviere, B,Marquis, G,&Maurin, JC.(1998).Morphologic dating of slowly evolving scarps using a diffusive analogue.GEOPHYSICAL RESEARCH LETTERS,25(13),2325-2328. |
MLA | Niviere, B,et al."Morphologic dating of slowly evolving scarps using a diffusive analogue".GEOPHYSICAL RESEARCH LETTERS 25.13(1998):2325-2328. |
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