海洋沉积物中浮游生物的这种变化标志着白垩纪和第三纪的分界线。
This change in plankton found in marine deposits is what marks the boundary between the Cretaceous and the Tertiary.
世界上大多数的海洋沉积物不是含有浮游生物就是含有大量的蕨类孢子，但它们并不是同时存在于同一层中。
Most marine deposits from around the world contain either plankton or a lot of fern spores but not both together in the same layer.
在石膏层上方和下方的沉积物中含有许多小型海洋生物化石，这表明这里的海洋环境很开放。
Sediment above and below the gypsum layer contained tiny marine fossils, indicating open-ocean conditions.
在更新世和更早的海洋沉积物中埋藏的化石生物属于孔虫类生物，它们是微小的单细胞海洋生物，其分泌的硬壳由碳酸钙和方解石组成。
The fossils buried in Pleistocene and earlier ocean sediments were of foraminifera—small, single-celled marine organisms that secrete shells of calcium carbonate, or calcite.
梅吉尔和他的同事希望能利用这种机器来研究海岸边的海洋生物，因为在这里，螺旋桨会激起较多沉积物，而且会跟水草缠绕在一起。
Megill and colleagues hope the bot can be used to study Marine life near the shore, where a propeller would kick up too much sediment or get tangled in weeds.
碳酸盐岩沉积物，特别是生物礁，只有在现代海洋动物群落和植物群落生态学详细资料的帮助下才能获得有益的研究成果。
Carbonate sediments, in general, and reefs, in particular, can only be studied profitably with the aid of a detailed knowledge of the ecology of modern Marine fauna and flora.
除了生物类的藏品外，克里普斯海洋研究所还保存有从海底收集来的沉积岩芯。
Aside from biological collections, Scripps also houses cores of sediment collected from the ocean bottom.
暖期海洋沉积层样品因含钙微生物在酸性海洋中溶解而呈灰色。
Warm periods were marked by gray layers in the ocean sediments caused by the calcium-containing microorganisms dissolving into acidic oceans.
海洋微生物腐烂后沉积形成磷酸盐。
The phosphate was deposited by the decay of Marine microorganisms.
碳酸盐岩沉积物，特别是生物礁，只有在现代海洋动物群落和植物群落生态学详细资料的帮助下才能获得有益的研究成果。
Carbonate sediments, in general, and reefs, in particular, can only be studied profitably with the aid of a detailed knowledge of the ecology of modem Marine fauna and flora.
该研究结果将对我国海洋底栖钩虾类的区系研究和沉积物毒性检验受试生物的选择和采集提供一定帮助。
The results may be helpful to understand the fauna of Gammaridea in Chinese sea and choice adaptive testing amphipods for sediment toxicity test.
同时结合现代生物修复和化学治理技术，提出一些预防和治理海洋沉积物中重金属污染方面的设想。
According to modern bio-mediation and chemical control technologies, some tentative plans to prevent or reduce the concentrations of heavy metals.
大多数化石都产在海洋的沉积岩石中，这些岩石多形成于浅海环境，在这个环境里生物丰富，且当它们死后，其残骸很快就可被埋藏起来。
The majority of fossils are found on Marine sedimentary rocks. Most of these rocks were formed in shallow seas where the life was abundant and where remains were rather quickly buried.
从报道的研究结果看，沉积物细菌、共栖细菌和共生细菌是海洋微生物天然药物筛选的重要来源。
Summarizing the studies obtained, sediment, commensal, and symbiotic bacteria were more important in searching for nature pharmaceutics.
生物礁是一种对海洋环境十分敏感的生态系，晚二叠世的火山作用势必影响到当时生物礁的生长和沉积相的演化。
Because reefs are peculiar ecosystems extremely sensitive to environment change, late Permian volcanism would surely have affected the reef growth and evolution of facies.
在石膏层上下的沉积物中包含了微小的海洋生物…
Sediment above and below the gypsum layer contained tiny marine fossils , indicating open -ocean conditions .
为分析连云港海洋环境质量，对连云港港区水质、沉积物及生物因子进行监测。
The water quality, sediment and biological factors were monitored to analyze Marine environment quality of Lianyungang harbor district.
碳循环一般包括以下几个主要的碳储藏所：大气、陆地生物圈、海洋、沉积物以及地球内部。
The carbon cycle is thought of including the following major reservoirs of carbon: the atmosphere, the terrestrial biosphere, the oceans, the sediments and the Earth's interior.
碳循环一般包括以下几个主要的碳储藏所：大气、陆地生物圈、海洋、沉积物以及地球内部。
The carbon cycle is thought of including the following major reservoirs of carbon: the atmosphere, the terrestrial biosphere, the oceans, the sediments and the Earth's interior.
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