淤泥质潮滩沉积周期性研究综述  

Review of Research on Sedimentary Periodicity of Tidal Mud Flat

作　　者：龚小辉[1,2] 柏春广[3] 王建[2] 

机构地区：[1]江苏教育学院地理系,江苏南京210013 [2]南京师范大学地理科学学院,江苏南京210046 [3]东南大学交通学院,江苏南京210096

出　　处：《南京师大学报（自然科学版）》2012年第1期117-121,共5页Journal of Nanjing Normal University(Natural Science Edition)

基　　金：中国近海海洋综合调查与评价项目(JS9080103);国家自然科学基金(40871010;49601019)

摘　　要：淤泥质潮滩发育过程中所包含的从半日周期、半月周期到年周期和长周期的"潮滩循环",能为潮滩沉积环境及沉积速率的研究提供参考,从而成为潮滩沉积研究的热点问题.随着野外工作的深入开展,不同时间尺度的淤泥质潮滩沉积周期陆续得到揭示,这一沉积特征的区域差异也更加清晰.潮滩沉积间断的存在为依据沉积的周期性来推算沉积速率设置了障碍.合理利用特定地段短时期内的连续沉积来研究古代的沉积速率和环境是潮滩沉积周期性研究的一个很有意义的课题.Both in ancient and modern tidal sedimentation,semidiurnal,semimonthly,annual and muti-year cycles of tidal mud flat have been widely revealed.As tidal cycle is very useful for research of the sedimentary environment and sedimentation rate,it has been one of the research hotspots in this field.With the increase of field work,the regional difference of the characteristic of sedimentary periodicities has been very clear.Diastems is a trouble for calculating the sedimentation rate.It is a sensible task to research the ancient sedimentation rate and sedimentary environment on the basis of short term continuous deposition in some area.

关 键 词：淤泥质潮滩 沉积周期性 沉积间断 

分 类 号：P736.21[天文地球—海洋地质]