水里总是遍布鹅卵石、砾石和沙子——它们被称为冰水沉积，是在水流减缓时沉积下来的。
The water was always laden with pebbles, gravel, and sand, known as glacial outwash, that was deposited as the flow slowed down.
如你所知，沉积物是通过风、水流或冰川运动等自然过程输送的物质，如沙子、砾石、化石碎片等。
Sediment as you know, is material like sand, gravel, fossil fragments that is transported by natural processes like wind, water flow or the movement of glaciers.
这块化石嵌在了可能是某条河流所沉积的沙和砾石之中。
The fossils were embedded in sand and gravel that were likely laid down by a river.
确定了研究区内存在的两套同构造沉积地层的分布范围及砾石成分变化特征。
It has been found that there are two series of syntectonic sedimentation in the research area.
巴士海峡以西海区沉积物较粗，常含砂岩块和砾石；
The channel is filled with noncompactible sand, or with sand and gravel.
由于雨水的不断的溶解，使原始的岩石或沉积物发生破裂，从而形成各种大小的砾块或砾石。
Because of continuous dissolution on former lithified sediments or rocks, these sediments or rocks will be broken into various sizes of clasts and pebbles.
SFCW由于使所有水流不断与土壤层、砾石层和豆石层反复接触，生成难溶性磷酸盐的几率大大高于SFCW，能够比SFCW更加显著地促进磷沉积。
W-SFCW system, which provides more interaction surfaces for wastewater to react with soil, oval stone and small-sized stone layers, showed higher chances to form insoluble phosphate than SFCW.
新生代地层中砾岩砾石成分稳定，以变质岩和沉积岩成分居多，岩浆岩很少；
Gravels components from the Cenozoic strata are mainly composed of metamorphic rocks and sedimentary rocks with little magmatic rocks.
上述阶地、沙嘴和湖岸堤的沉积物主要由磨圆度和分选性较好的砂或砂砾石组成。
The land spit and lake terrace are formed by the sand and grit which have good polish and select.
每次冰期及间冰期沉积物中的砾石及其岩性，砾态，沉积厚度，风化程度等都有明显区别。
The gravels in deposits of different glacial epochs and interglacial stages show obviously different rock characteristics, gravel forms, deposit thicknesses and weathering degrees.
通过对宜昌地区第四纪沉积物中峨眉山玄武岩砾石的寻找和研究，可以确定三峡以西物质搬运至宜昌地区的时间，从而为长江三峡贯通时间的确定提供参考。
Via searching and finding the E mei Mountain basalt gravels in the Quaternary sediments in the Yichang area, the cutting-through time of the Three Gorges can be determined.
通过对宜昌地区第四纪沉积物中峨眉山玄武岩砾石的寻找和研究，可以确定三峡以西物质搬运至宜昌地区的时间，从而为长江三峡贯通时间的确定提供参考。
Via searching and finding the E mei Mountain basalt gravels in the Quaternary sediments in the Yichang area, the cutting-through time of the Three Gorges can be determined.
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