河口三角洲地区洪水沉积研究进展

详细信息

收稿日期: 2012-09-24

PROBLEMS AND SUGGESTIONS FOR STUDYING FLOOD DEPOSITS IN ESTUARINE AND DELTAIC AREAS

Received Date: 24 September 2012

摘要: 洪水事件沉积的研究对古洪水系列的重建和洪水沉积模式的建立具有重要意义,它还是古气候变化的一种响应。概述了国内外洪水事件沉积研究的最新进展,提出了洪水事件的判别标志,并对当前洪水事件研究存在的问题进行了探讨,提出了应该在沉积环境相对稳定的、沉积速率相对较低的河口三角洲地区开展高分辨洪水事件研究。
- 河口三角洲 /
- 洪水 /
- 事件层
Abstract: To study flood deposits in modern estuarine and deltaic areas is not only a contribution to the recognition of the paleoflood events in the geologic period, but also an endeavor to understand more about density current in the offshore area. In this paper, we briefed the latest progress of flood event study over the world and discussed the depositional proxies which may be used for identifying paleoflooding events. Problems were raised for further study. It is suggested that high resolution research of flooding events and their deposits be launched in a relatively stable deltaic area with low sedimentation rate.
- estuary delta /
- flood /
- event beds