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The amplitude and the rate of coastal elevation and subsidence and the regularities of positive andnegative crustal movements are discussed emphatically in this paper, and on this basis 11 periods ofcoastal elevation and subsidence are distinguished. Each period is further subdivided into two stagesof subsidence-sedimentation and elevation-sedimentary hiatus; each stage covers a time interval of about250 years, that is to say, each period is equivalent to about 500 years. It is a new subject to study the period of recent coastal elevation and subsidence. For this signifi-cant but difficult subject, there have always been two distinctly different schools of thought relatingto the rate of coastal elevation and subsidence, the time division of sediments and the origin of highbeach rocks. Therefore, the authors welcome the valuable comments or criticisms on this paper fromspecialists and scholars. 相似文献
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闽粤沿海近五千多年来海岸升降周期的初步研究 总被引:1,自引:0,他引:1
本文在着重讨论了海岸升降的幅度、速率、正反向活动规律的基础上,划分出11个周期。每一周期又分为沉降-沉积阶段和抬升-沉积间断阶段;每一阶段海岸活动的时间为250a左右,即海岸升降周期为500a左右。 相似文献
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Six species, belonging to five genera, of large animal remains are firstly described andreported in this paper. They were found in the late Holocene high beachrock of 25--m ele-vation on Longhu Hill of Houshijing, Pinghai Village, Putian County, Fujian Province. Theseanimal remains are found mostly between intertidal and subtidal zones in the tropical areafrom the Miocene to the recent. The research results have confirmed that the coastal sedi-ments belong to the beachrock, which is formed in the tropical coastal areas. This paperproposes that the study of large animal remains in the beachrock can provide a scientificbase for the understanding of the sedimentographic environment of the beachrock, andvaluable information for the study on paleoclimate and paleo-shoreline evolution. 相似文献
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