下滩

活体牡蛎堆积体顶面高于周围潮间下带滩面1015m。潮流较强，多在0520m/s。

The top of the accumulated body of the living oyster reef is 1 0 1 5 meter higher than the nearby lower intertidal flat . The tidal current velocity is commonly 0 5 2 0m / s.

涌潮作用下护滩块石起动研究

Incipient motion of rock blocks for beach protection under the action of tidal bores

波浪作用下岸滩坡度对推移质输沙率影响的实验研究

Experimental Study on the Effect of Slope Bed on Bed Load Transport Rate under Wave Action

阐析海冰作用下潮滩微地貌类型&擦痕、冲刷坑和泥斑的形成机制；

Then , the forming mechanism of the three kinds of tidal flat micro-topography including scrape , scoured pit and mud speckle are discussed .

它是受限陆表海环境中潮下高能滩体经过表生期和埋藏期岩溶作用的改造，以次生溶孔为主的岩溶型储层。

It is karst reservoir on basis of secondary dissolve pore that experiences the karst corrosion result of hypergene and burial period , which lies in the high energy bank of the subtidal zone on the limited epicontinental sea .

孔隙、溶洞、裂缝是华北地区下古生界礁滩型储层的主要储集空间类型，构造、古地理和成岩作用对礁滩储层的发育具有重要的影响。

The pore , cave and cracks are the main reservoir space of reef-bank reservoirs in lower Palaeozoic in North China . Tectonics , paleogeography and diagenesis are of important influence on the reef and bank reservoirs .

岬湾相间的琼州海峡南岸在海岸动力条件作用下，岸滩发生侵蚀或堆积，特别是南岸中部的南渡江三角洲沿岸岸滩演变剧烈。

The south coast of the Qiongzhou Strait , especially its middle part , alternating between promontories and bays , is subjected to erosion and deposit underthe actions of coastal dynamics such as waves and tidal currents .

此外，验证该方法测定渗流的可行性。（2）室内模拟波浪作用下黄河口潮滩沉积物渗流的土柱试验。

In addition , it proves that the method for measuring the seepage is feasible . ( 2 ) Indoor seepage test of the tidal flat sediments under simulation of wave , setting the two soil samples , one has biological caves , and the other has no biological caves .

完整的贝壳堤体系应包括海岸贝类生长带（潮滩下部和潮下带）潮滩侵蚀带贝壳堤堤后泻湖；

A complete chenier system should include living shellfish belt , tidal flat erosion belt , chenier , and lagoon .

然而港湾里静悄悄的，他直驶到岩石下一小片卵石滩前。

It was quiet in the harbor though and he sailed up onto the little patch of shingle below the rocks .

叶状藻礁在沉积环境频繁变化作用下，与碎屑滩相、灰泥相共同形成独特的沉积序列。

A unique depositional sequence consists of phylloid algal buildups , bioclastic banks and mud facies affected by frequent changes of depositional environments .