1)biogenic sediments生源沉积物
1.An integrated study was carried out on biogenic sediments,foraminiferal abundance and icerafted detritus(IRD) of core M03 in the Chukchi Basin,western Arctic Ocean to investigate preservation conditions of biogenic components and environmental changes during the late Quaternary.通过北冰洋西部楚科奇海盆M03孔晚第四纪以来生源沉积物,有孔虫丰度和冰筏碎屑(Ice-Rafted Detritus,IRD)的综合研究表明,海洋氧同位素(Marine Isotope Stage,MIS)7期以来,碳酸钙(CaCO_3)含量和浮游有孔虫丰度在间冰期的增加和冰期的降低,分别指示大西洋水输入的加强和减弱。
英文短句/例句
1.LATE QUATERNARY BIOGENIC SEDIMENTS AND THEIR PALEOCEANOGRAPHIC IMPLICATIONS IN THE CHUKCHI BASIN,WESTERN ARCTIC OCEAN北冰洋西部楚科奇海盆晚第四纪生源沉积物及其古海洋学意义
2.The Sedimentary Timing, Source Provenance and Tectonic Setting of Paleozoic Clastic Sedimentary Rocks in the Altai Orogen, Xinjiang;新疆阿尔泰古生代碎屑沉积岩的沉积时代、物质来源及其构造背景
3.Possible provenances and their change of aeolian deposits in north China in late Cenozoic;晚新生代中国北方风尘沉积的可能物源及变化
4.SOURCE AND DISTRIBUTION OF BIOGENIC MATTER IN SEDIMENTS AT STATION OF CHUKCHI SEA AREA北极楚科奇海地区沉积物生源物质的来源和分布
5.Sources and Form Distribution of Lipids Biomarkers in Representative Oceanic Sediments典型海洋沉积物中脂类生物标志物的形态分布及来源分析
6.The Effect of Florfenicol on Biogeochemical Cycling of Biotic Material in Coastal Marine Sediment;氟苯尼考对近岸沉积物中生源要素生物地球化学循环的影响
7.Magnetic Properties of Late Cenozoic Sediments in the Yangtze River Delta and Implications for Their Sedimentary Environment, Provenance and Paleoclimate;长江三角洲地区晚新生代沉积物磁性特征及其沉积环境、物源与古气候意义
8.organically formed sedimentart rock生物作用形成的沉积岩
9.Studies on the Distribution and Origins of Biogenic Matters in the ECS Sediments of High-frequency HABs Areas;东海赤潮高发区沉积物中生源要素的分布及其来源研究
10.Distribution of Different Forms of Nitrgen and Organic Pollutants Biological Toxicity Effect in Sediments of Qiantang Jiang River;钱塘江沉积物生源氮素和有毒物质多氯联苯污染特征
11.Research on the Thermophilic Resources of Anshan Hot Spring and Analysis of Microbial Diversity in Deep-sea Sediments;鞍山热泉的嗜热菌资源研究及深海沉积物的微生物多样性分析
12.Distributions of Biogenic Elements, Heavy Metals and Potential Ecological Risk Assessment of Heavy Metal in Surface Sediments from Coastal Sea of Guandong Province广东沿海沉积物中生源要素、重金属分布及其潜在生态危害评价
13.Distributions and Ecological Significance of Biological Elements in Core Sediments from Aquaculture Areas of Sanggou Bay桑沟湾养殖海域生源要素在柱状沉积物中的分布及其生态学意义
14.The Analysis of The Sediment Source and Reconstrucation of The Framework of The depositional Environment in The Mesozoic Ordos Basin;鄂尔多斯中生代盆地古物源分析与沉积环境格局恢复
15.The Mesozoic Tectonic Event and Sedimentary Environment in the Southwest Margin of Ordos Basin;鄂尔多斯盆地西南缘中生代构造事件及沉积物源环境分析
16.Sediment Source and Sedimentary System Study in upper Paleozoic in Yanchang Oil Region of Ordos Basin鄂尔多斯盆地延长油区上古生界物源及沉积相研究
17.Distribution, sources and ecological risks of polycyclic aromatic hydrocarbons in water-sediment system in Lake Small Baiyangdian小白洋淀水-沉积物系统多环芳烃的分布、来源与生态风险
18.Distribution, sources and ecological risk assessment of polycyclic aromatic hydrocarbons in sediments from Wangkuai Reservoir, Hebei Province河北王快水库沉积物多环芳烃的分布、来源及生态风险评价
相关短句/例句
sedimentary source沉积物源
1.The pattern of hypo-stable heavy mineral zone, hypo-stable heavy mineral +stable mineral zone and stable mineral zone are distributed from north-east to south-west, quartz cathode luminescence characteristics indicate that the source mother rock is a middle-low class metamorphic rock, which shows that the sedimentary sources of the Reservoir Group Chang 6 in the studied are.石英阴极发光特征表明物源母岩为中低级变质岩系 ,说明研究区长6油层组沉积物源主要来自北东部吕梁山区和大青山区。
2.In the sedimentary source obvious tectonic movements and changes occurred during 4.8 Ma 3次构造热事件;沉积物源区在42。
3.Through analyses of heavy minerals and rock compositions, it is first found that the sedimentary source in the area comes from 2 directions, one is Mobai area in east-north direction, the other is Xiaoguai direction.通过对该区重矿物分析、岩石组分等的分析,首次发现该区沉积物源来自两个方向,一个是北东方向的莫北地区,另一个是西北的小拐方向。
3)Sediment provenance沉积物源
4)biocatalytic deposition生物沉积
1.A novel sensitive electrochemical immunoassay method was proposed based on gold nanoparticle mediated biocatalytic deposition of platinum followed by stripping voltammetric determination.发展了一种基于纳米金介导生物沉积铂并以铂催化氢还原伏安法进行检测的高灵敏电化学免疫分析新方法。
5)biodeposition生物沉积
1.Study on biodeposition by oyster Crassostrea gigas;太平洋牡蛎生物沉积作用的研究
2.Assimilation efficiency and biodeposition of mussel Mytilus crassitesta;厚壳贻贝的同化率及其生物沉积作用
3.Biodeposition by the Zhikong Scallop Chlamys farreri in Sanggou Bay, Shandong,Northern China;桑沟湾栉孔扇贝生物沉积的现场测定
6)multi-sources sediment多源沉积物
延伸阅读
沉积物控制 沉积物控制是循环冷却水处理(见循环冷却水系统)的一个主要内容。沉积物是指沉积在给水系统中的管壁或设备壁上的固体的统称。 沉积物类型 循环冷却水的沉积物成分较复杂，可分为盐垢（水垢）、污垢和粘垢三类。盐垢指水中盐类，特别是某些微溶盐类，因水温升高而溶解度降低，从水中析出而形成的沉积物。常见的有碳酸钙、硫酸钙、磷酸钙和硅酸镁。污垢指水中腐蚀产物、工艺漏料(如油)、泥沙、粉尘、碎屑、菌藻等不溶杂质所形成的沉积物。粘垢指由微生物及其代谢产物和一些其他杂质夹杂在一起而形成的凝胶状、粘泥状物质。沉积物除堵塞管道和换热设备外，还有降低传热效率、增加能耗和造成垢下腐蚀等害处。 沉积物控制因素 指将沉积物控制在一定限度内，以保证循环冷却水系统的正常运行。控制微生物即可控制粘垢。控制补充水和循环水的悬浮杂质，并在循环水中投加分散剂或高分子凝聚剂，即可控制污垢。盐垢的控制方法有：①加酸。常用的是硫酸或二氧化碳。硫酸的作用是降低水中的重碳酸根的浓度，从而防止产生碳酸钙沉淀。加二氧化碳是使水中碳酸根转化为重碳酸根，以防止碳酸钙沉淀。②加阻垢剂。常用的有聚磷酸盐、磷酸酯、膦酸盐、聚羧酸盐等。③软化和除盐。降低水中溶解盐类，以避免出现盐垢。软化和除盐只在特殊情况下才采用。 水质稳定处理 循环给水或直流给水系统中最常出现的盐垢是碳酸钙沉淀。碳酸钙 (CaCO3)沉淀和水中二氧化碳(CO2)之间的关系可表示为： 当水中CO2浓度不足以保持这一平衡关系时，产生CaCO3沉淀;当CO2浓度超过这一平衡关系时,水中无CaCO3沉淀，CO2产生侵蚀作用。二氧化碳的过量与不足都造成水质的"不稳定"情况。当水中CaCO3和CO2的浓度正好满足化学平衡的关系时,称为水质稳定。这时既无CaCO3沉淀,也无CO2的侵蚀作用。鉴别稳定性的最通用指标是兰格利尔饱和指数,简称兰格利尔指数。饱和指数＝pH-pHS,式中pH值为水的实测值；pHS值则是当水质稳定时,水应有的pH值,与水温有关。饱和指数等于零时,水质稳定；大于零时,水将产生CaCO3沉淀；小于零时,将有CO2侵蚀作用。在测得水的温度、pH值、钙和碱度后,可以计算pHS值。
