所以沉积物被运输，然后沉积，随着时间的推移，它在地球表面形成了层。
So sediment is transported and then deposited and it forms layers on the Earth's surface over time.
相比于大陆冰川沉积物，海洋沉积物提供了更完整的更新世时期的地质记录。
Ocean sediments presented a much more complete geologic record of the Pleistocene than continental glacial deposits did.
红树林根系有能力吸收并很好地截留水中的沉积物和污染物，这些沉积物和污染物在进入海洋之前流经这些根系。
Mangrove root systems have the ability to absorb and well trap sediments and pollutants in water that flows through them before they enter the ocean.
虽然大多数化石是在海洋沉积岩中发现的，但它们也存在于河流和湖泊所留下的陆地沉积物中。
Although most fossils are found in marine sedimentary rocks, they also are found in terrestrial deposits left by streams and lakes.
裸露的岩石受到各种天气过程的侵蚀，逐渐分解成碎片，然后被带走，最后沉积形成沉积物。
The exposed rocks are attacked by the various weather processes and gradually broken down into fragments, which are then carried away and later deposited as sediments.
最近发现了一个据估计有近500,000年历史的沉积物，该沉积物由木炭、燃烧的动物骨头和烧焦的岩石组成。
A site containing a deposit, estimated to be nearly 500,000 years old, consisting of charcoal, burned animal bones, and charred rocks, has recently been found.
当浅水区的蓝细菌和其它微生物生长的时候，一些沉积物沉积在上面，它们结合在一起形成岩石一样的小石塔和石丘，最后逐渐形成层状叠层石。
Cyanobacteria and other microorganisms build stromatolites in shallow water as they grow, gradually trapping and binding sediments into the small rock-like towers and mounds.
如果火星探测器着陆时偏离了这些沉积物的话，它将不得不辛苦的开上12英里才能到达这些沉积物所在位置进行采样。
However, the rover's landing site would be away from the deposits, so the rovers would have to drive anywhere up to 12 miles in order to reach them.
波鲁普峡湾泉水中的氢化硫转化为稳定的沉积物。或为单质硫——这是沉积物中最普通的成分，或为石膏。
At the Borup Pass spring, hydrogen sulfide gas in the water is converted to stable deposits of either elemental sulfur, the most common material in the deposit, or gypsum.
这个滑坡沉积物大可以排除远离上游的沉积物是冰川沉积的想法。
This landslide deposit pretty much rules out the idea that the deposits farther upstream are glacial outwash.
海底生物群——生活在沉积物上和沉积物里的动物——构成了这个巨大的生态系统。
The benthos -- the animals living on and in the sediments -- populate this vast ecosystem.
时间过去，河流侵蚀碎片，但我们仍然能看到在支流峡谷中出来的滑坡沉积物和三角洲沉积物中湖泊的证据。
Over time the river eroded out the debris, but we still see evidence of the lake in the landslide deposits as well as delta deposits coming out of the tributary valleys. The O.S.L..
沉积物岩心主要记录的是沉淀在海底沉积物，一层又一层，记录它们沉淀时的海洋系统状况。
Sediment cores are essentially a record of sediments that settled at the sea floor, layer by layer, and they record the conditions of the ocean system during the time they settled.
河流峡谷将会是沉积物的重要来源，这些沉积物是被河水携带着，顺流而下汇集到三角洲的。
The valleys were the source of sediment that was carried downstream and dumped into the deltas.
科学家们认为，当撞击盆地被沉积物所填满，而沉积物周围的部分逐渐被侵蚀殆尽时，就会形成了类似这样的颠倒陨石坑。
Scientists think such inverted craters form when an impact basin fills with sediment and the material around that sediment gets eroded away.
从疑似三角洲沉积物中提取的光释光样本能提供给我们信息，滑坡沉积物何时发生，湖泊何时形成。
sample from the suspected delta deposit could give us information on when the landslide happened and the lake formed.
我们可以看到，现在的湖底或浅海底部的沉积物中形成了波痕。许多沉积岩都含有类似这种波痕的特征。
Many sedimentary rocks contain such features as ripple marks, exactly like those we can see forming in sediments at the bottom of present-day lakes or shallow seas.
沉积物的粒度特征反映了沉积环境。
The grain-size characteristics reflect the sedimentary environment.
沉积组构分析的方法是说明冰川沉积作用、冰成沉积物形成机理的一种有用的工具。
The method of sedimentary fabric analysis is a useful tool in investigating the glacial sedimentation and the mechanism of glacial sediment formation.
通过对我国部分海区样品的测定，得出了沉积物中硒的含量，以及晒在沉积物中的富集速率。
The content of selenium and its enriching rate in the sediment have been obtained by measuring the samples in part of China's sea area.
沉积物的粒度是控制沉积物中污染物分布的主要因素之一。
Grain size is one of the main factors to control the pollutant distribution in sediment.
系指介于低潮面和洋底之间深度的海水或大洋水中的沉积物或沉积环境。
Pertaining to sediments or environments in seas or ocean waters, between the depth of low tide and the ocean bottom.
河漫滩上沉积物的沉积伴随着与沉积物相结合的营养和污染物质的沉积。
Deposition of sediments on river floodplains is accompanied by the deposition of sediment-associated nutrients and pollutants.
稀土元素(REE)在揭示沉积环境，研究沉积物物源及成因方面具有重要的示踪意义。
Rare earth elements (REE) have important tracing significance on studies about sedimentation environment, source and forming of sediments.
结果表明：实验室和现场所得的沉积物声速、声衰减与沉积物的类型密切相关。
The results show that sound velocity and sound attenuation is correlated with types of sediment.
相对长江沉积物而言，黄河沉积物REE 分布模式与上陆壳的更为相近，可用来示踪上陆壳平均组成。
The Yellow river sediment has similar REE composition to the upper continental crust(UCC), so it can also be used to trace the UC composition.
潮滩沉积物的粒度参数可以用来反映沉积物沉积的水动力、沉积物来源和沉积物搬运趋势等环境信息。
Grain size parameters of intertidal flat sediments are related to local sedimentary environments, such as depositional hydrodynamic conditions, sediment sources, sediment transport, etc.
潮滩沉积物的粒度参数可以用来反映沉积物沉积的水动力、沉积物来源和沉积物搬运趋势等环境信息。
Grain size parameters of intertidal flat sediments are related to local sedimentary environments, such as depositional hydrodynamic conditions, sediment sources, sediment transport, etc.
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