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In the fluvial deposit environment, the quartz superficial characteristic is primarily by the inferior circle, the conchoidal breakage fracture and the submarine hit pit, revealing the transformation of current to the quartz; In lake-deposit environment, quartz sand superficial characteristic is by primarily abraded edges and parallel cleavage, the quartz maintained the primitive characteristic, indicating the quartz received few transformation of fluent, different quartz grain has their different curve character.

在河流沉积环境,石英砂的表面特征以次圆、贝壳状断口和水下撞击坑为主,显示了水流对石英砂颗粒表面的改造;在湖泊沉积环境中,石英砂的表面特征以多棱角和平行解理面为主,石英砂颗粒保持了原始的特征,表明了石英砂颗粒受到水流的改造比较少。不同沉积环境中石英砂颗粒表面结构特征都具有自己的曲线特征。

Using a comparative and simulative approach, this study quantitatively explored the effects of macrobenthos (Ilyoplax deschampsin and Corbicula fluminea) on the exchange of nitrogen across the sediment-water interface and the early diagenesis of nitrogen in tidal sediments from the Yangtze Estuary....

研究表明,谭氏泥蟹主要通过掘穴活动增加沉积物-水-气三相接触界面,促进沉积物中的无机氮(NH+ 4- N、NO- 2 -N和NO- 3- N)向上覆水体中扩散,并且也加快了沉积物中氮的氨化作用和硝化作用速率,而河蚬则主要通过生理活动机制影响潮滩生态系统内氮素的迁移转化过程。

Corbicula fluminea however affected the exchange of nutrient nitrogen across the sediment-water interface by the physiologic mechanism such as the excretion. Crabs such as Ilyoplax deschampsin changed the physical structure of the tidal flat sediments by the strong bioturbation, and increased the content of dissolved oxygen in the sediment by enhancing the touched area of sediment and air.

谭氏泥蟹主要通过生物扰动,增加沉积物-水-气三相界面之间的接触面积,促进沉积物界面附近营养盐物质交换过程;而软体动物河蚬则主要通过生理活动,影响潮滩沉积物中氮营养盐的界面扩散过程。

The gravity or shake corer can be adopt for the soft sediment, and the rotary corer for the hard sediment; 3 carry out the core transfer technique under pressure.

对松软的非岩性沉积物采样时,可采用重力驱动或震动冲击驱动保真采样装置;对硬质岩化的沉积物采样时,可采用回转式保真采样装置。3)重点开展沉积物样品无压降转移技术。

Pollutants sticking to sediment such as those of heavy metal would be accumulated in the process of sedimentation and then playthe role of biological decomposer together with soil microorganisms, and could purify the sewage through soil permeation.

黏结在沉积物上的污染物,随同沉积沉积而积累起来,通过附着在植物的根茎表面的微生物,使有机物进行生物性分解,并通过土壤的浸透作用对污水进行直接净化。

Research results show that the warden 4 + 5 to 6, meandering river delta depositional belongs to the reservoirs mainly development phase, the delta plain and sedimentary microfacies in distributary channel, and channel between.

研究结果表明该区长4+5为曲流河沉积,长6油层组沉积属于三角洲相,主要发育三角洲平原亚相,沉积微相以分流河道和河道间为主。

The grain size of sediments has an important role in the early diagenesis of nitrogen.

在氮的早期成岩过程中,粒度也起着非常重要的作用,沉积物的粒度越细,沉积物中有机氮的分解速率越小,即细粒度沉积物中有机氮的分解矿化速率最小,易于富集有机氮。

Based on the petrological and sedimentological research the paper discusses on tectonic background of the Changcheng System clastic rocks, especially on the syndepositional diastrophism.

本文综合岩石学和沉积环境的研究结果,进一步探讨了长城系碎屑岩的沉积背景,重点讨论了同沉积期的构造活动特点。

Under the guidance of the theories of sedimentation, paleontology, stratigraphy, reservoir geology and digenesis, synthetically applying the methods of the conjunction of spot-line-surface, macro-microscopic and field-indoor, there is a comprehensive study for the upper Permian series in stratum, rock, sedimentary facies and diagenesis, especial for the type and characteristics of sedimentary facies, in the paper.

本文主要是以沉积学、古生物学、地层学、储层地质学等相关理论为指导,运用点线面、野外与室内、宏观与微观相结合的方法,并借助普通显微镜、阴极发光显微镜等手段对川西地区北部上二叠统的地层、岩石、沉积相以及成岩作用进行了研究,尤其是对沉积相的类型及特征作了详细的划分与阐述。

Different types of microbialites were formed in different water depths, containing different assemblages of cyanobacteria and benthic animal fauna. Our research indicates that the digitate or domed microbialites should have been deposited in the most shallow water environment and the laminated or clotted microbialite probably in relatively deep water conditions.

不同微相类型的微生物岩在沉积水深、蓝细菌化石、底栖群落组合上仍存在差异,其中树枝状和弯窿状微生物岩沉积时所处水深最小,花斑状微生物岩和层纹状微生物岩沉积时所处水深可能相对较大。

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