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susceptibility values
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  磁化率值
     In this paper,two loess profiles located in Pinglu,Shanxi north of Sanmenxia gorge of the Yellow River,have been studied. The magnetic susceptibility curves of Miaoxia and Yangwa profiles show that the susceptibility values of S 6 and S 1 are higher than that deposited in the corresponding period in the Loess Plateau,while the values of S 5~S 2 and L 7~L 2 are somewhat lower,being close to the susceptibility value of L 9 in the interior of the Loess Plateau.
     对黄河三门峡北岸的山西平陆庙下、阳凹两个黄土剖面研究结果表明 ,S6、S1 的磁化率值较黄土高原明显偏高 ,S5~ S2 的磁化率值则相对偏低 ,L7~L2 的磁化率值也表现出较低值 ,与黄土高原内部 L9磁化率值相近。
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     Taking "Milanggouwan section" located in the Salawusu River valley termed in recent years as an ideal profile in the southeastern margin of Ordos Plateau, the stratigraphic characteristics in the section and the relation between the stratigraphical magnetic susceptibility values, grain-size distributions and climatic changes have been discussed in this paper.
     以在萨拉乌苏河流域近年命名的“米浪沟湾地层剖面”作为河套东南的理想剖面 ,描述了其地层特征、讨论了地层磁化率值和粒度分布与气候变迁的关系。
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     It was concluded that significant differences of the magnetic susceptibility curvesexist between the soil sections from the two regions. The susceptibility values of topsoils from the non-polluted area are low (<10E-3SI) and varies slightly with depth.
     结果表明,两个地区的土壤剖面磁化率曲线存在很大的差异:无污染地区地表土壤磁化率值都比较小(<10E-3SI),磁化率值随深度变化幅度很小;
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     on the other hand, the "flood disturbed layers" usaully show low magnetic susceptibility values.
     而"洪水扰动层"则表现为低磁化率值
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     While distinct magnetic enhancement was observed at top soils from Yingshan ForestGarden, in western Beijing city (belonging to polluted area). The top soils have thehigh magnetic susceptibility values up to 5.0×10E-3SI, as much 3-6 times as that ofthe substratum and decreases sharply downward the section. The susceptibility valuesof soils are small and having little variations at a depth of >8cm in the YingshanForest Garden.
     污染区北京鹰山森林公园表层土壤磁性增强非常明显,是下层土壤的3-6倍,磁化率值最大达到5×10E-3SI,并随深度增加迅速减小,而在距地表8cm以下,磁化率的值很小,且变化幅度小,类似于无污染地区的土壤剖面磁化率变化特征;
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  “susceptibility values”译为未确定词的双语例句
     A sea level depress would lead to an increase in the content of the detritalmaterials, and therefore to an increase in the susceptibility values.
     海平面下降会导致陆源物质含量的增加,并且磁化率也会升高。
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     Based upon the ages inferred by cultural relicts, AMS 14C dating, phenomena of human activitices and characteristics of magnetic susceptibility (SI) curves of profiles at Zhongba Site in Chongqing, we find that the contribution of climate change and soil formation to the distribution of magnetic susceptibility values in stratum is concealed by the impact of the abnormally strong human activitices for a long time.
     结合古器物推定及14C测定年代、人类遗存遗迹和堆积物自然属性特征,重庆中坝考古遗址多剖面地层高分辨率采样的质量磁化率(SI)综合对比研究表明:磁化率分布表现异常,在很大程度上已掩盖了气候变化、成土作用等因素对地层磁化率分布的贡献,反映遗址堆积物曾受到人类长期异常强烈的改造。
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     This evidence is difficult to fully explain through variation in wind strength alone, but implies that the low magnetic susceptibility values in the Alaskan palaeosol units are a reflection, at least in part, of the alteration of the ferrimagnetic content by post-depositional processes.
     这一证据很难单纯以风力强度的大小来解释,意味着阿拉斯加古土壤的低磁化率至少部分是在成壤过程中亚铁磁性矿物发生改变(如溶解)而造成,表明阿拉斯加黄土和中国黄土的磁化率与古气候记录可能存在两种模式,即氧化和还原条件下的成土模式。
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  相似匹配句对
     And the values of Q.
     Fe~(3+)M_1位的Q.
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     The susceptibility of C.
     海南苏铁C.
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     On the Values of Constitutionalism
     宪政价值新考
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     Magnetic Susceptibility
     稀磁合金的磁化率
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     Clinical Application of TR and MIC Values in Antifugal Susceptibility Testing in Vitro
     TR与MIC在酵母菌的体外药敏试验中的临床应用
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  susceptibility values
Fillings covering most of the surface have lower density and susceptibility values than those of underlying structures.
      
The classification is based mainly on the differentiation between the different stages of oxidation and these were found to be in accordance with the intensity of magnetization and susceptibility values.
      
The essential variability of the main parts of serpentinite samples is characterized by the great changes of susceptibility values from point to point.
      
The interval of measured susceptibility values amounts to (10-1500)·10-6 cgs units.
      
Boundaries between different flooding events are clearly linked with significant variability of the measured susceptibility values corresponding to one and the same level.
      
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Loess stratigraphy in China consists of many loess and palaeosol layers overlaped each other, It is a direct product of palaeoclimate effect and records a variation of Quaternary climate. A lot of data confirms that the magnetic susceptibility value of the stratigraphy is correlated well to weathering (or pedogenic )degree of loess and palaeosol, indicating that palaeoclimate record of the loess/ palaeosols can be delineated by the susceptibility of loess on the central loess plateau, such as along Xifeng loess...

Loess stratigraphy in China consists of many loess and palaeosol layers overlaped each other, It is a direct product of palaeoclimate effect and records a variation of Quaternary climate. A lot of data confirms that the magnetic susceptibility value of the stratigraphy is correlated well to weathering (or pedogenic )degree of loess and palaeosol, indicating that palaeoclimate record of the loess/ palaeosols can be delineated by the susceptibility of loess on the central loess plateau, such as along Xifeng loess profile. Magnetic minerals and their grain size were studied by using method of rock magnetism. It shows that: (1) maghemite commonly exists. in loess and palaeosol; (2) pedogenic development is proportional to the content of magnetic minerals (magnetite mainly) formed in the pedogenesis, but inverse proportional to their grain sizes, while the content and grain size play a critical role in the susceptibility value of loess / palaeosols. These results suggust that palaeoclimatic warm-wet degree determines the content and grain size of magnetite (and maghemite ) formed in pedogenic processes, which decides susceptibility values of the loess and palaeosol. Therefore, the susceptibility of loess China in reflects the variation of Quaternary climate.

本文以实验数据证明,黄土磁化率的高低与其经历的风化或土壤化强度密切相关,风化程度决定了磁铁矿的生成最及其颗粒的细小程度,从而决定了磁化率的高低。因此,与土壤化程度密切相关的中国黄土地层记录了第四纪古气候变化。

Since the 1930's, the problem of the Huangshan Quaternary sedimental environment has been argued. J. S. Lee (1936) had even suggested that the Huangshan had a paleo-glacier history and paleo-glacial landform as well as paleo-glacial deposits during Quaternary. However, according to the analyses of 17 samples from Xiaoyaoxi, profile,Huangshan Mountain, the authors obtained the following new results and discoveries:1. Size parameter and C-M map show, most of the sediments have not been reformed more a new place...

Since the 1930's, the problem of the Huangshan Quaternary sedimental environment has been argued. J. S. Lee (1936) had even suggested that the Huangshan had a paleo-glacier history and paleo-glacial landform as well as paleo-glacial deposits during Quaternary. However, according to the analyses of 17 samples from Xiaoyaoxi, profile,Huangshan Mountain, the authors obtained the following new results and discoveries:1. Size parameter and C-M map show, most of the sediments have not been reformed more a new place for sedimentation. This phenomenon indicates that there was a proximal and diverse depositional environment here. 2. By using volumetric analysis method to test thee Fe3+ and Fe2+ contents of the samples, the Fe3+/ Fe2+(formula: tpaleo-temperature; T-local present mean annual air-temperature; M-difference of Fe3+/ Fe2+ between single sample and mean value; X-mean value of all samples for Fe3+ / Fe2+) the data did not show the lowest annual air-temperature during Quaternary to reach below 0℃, in fact, the lowest value was 11.42℃, and the highest was 20.29℃. Gladers, therefore, could not have developed here. 3. By using ICP-AES method, the leachingof CaO for the profile is stronger than the loess-land. The oxide ratio here shows that in most cases the higher annual mean air-temperature is synchronous with the pluvial period,contrary to the lower annual air-temperature. 4. Pollen assemblage reveals at least that the place had undergone the sedmentary environment, i.e from warm→cool dry→humid hot during the Mid-pleistocene. 5. Illite (d001) X ray diffraction indicates that open index Ns is gradually increscent (1.4-1 .6) from lower to upper on the profile; conversely for the ratio index (Hw: 2.3-1.95) of long and width, this illustrates that the weathering intensity has a gradual increscent trend. 6. Both panning and scanning electron microscope reveal that the surface of magnetite and epidote in the samples have stronger solution phenomena, which confirms that the place had undergone the humid-hot weathering enviroment during the Mid-Pleistocene. 7. Paleomagnetic dating finds that the profile belongs to Brunhes normal epoch, its stratigraphical time table should be Q2-Q4. 8. In the strata of the Q2, Q3 and the Q4, most low susceptibility values are correspondence with the fine grain size of the samples, on the contrary for their high susceptibility values. Comprehensive an,alyses of susceptibility and granularity, etc. show that the place had undergone the environments of humid-hot, dry-hot, and warm-dry, warm-humid as well as dry-cool during the Mid-Pleistocene; periglacial slope-gravity deposition for the Late-Pleistocene, and humid-hot slope deposition (sliderock) for the Holocene epoch.

根据对黄山逍遥溪剖面17个样品的分析,得出下述见解:1.粒度参数和CM图象反映,该处沉积物大都未经改造就进入新环境,反映了近源沉积和多变的环境.2.Fe3+/Fe2+含量测定表明,该处第四纪期间最低年均气温并未低于0℃,因此不具备冰川发育的条件.3.该剖面CaO的淋溶强于黄土发育区,氧化物比值反映出多数情况下较高年均气温与多雨期一致,反之亦然.4.孢粉样品揭示中更新世至少经历过从温暖→干凉→湿热的沉积环境.5.伊利石(d001)衍射峰显示:开形指数Ns值自下而上逐渐被动增大,长宽比Hw指数正相反,表明风化度有逐渐增大的趋势.6.重矿和扫描电镜分析均发现磁铁矿和绿帘石表面的强烈溶蚀现象,证实了中更新世经历过湿热风化沉积环境.7.古地磁测试发现该剖面主要属布容正极性世,地层年代应属Q2-Q4。8.磁化率、粒度等综合分析表明:该处在中更新世既经历过湿热和干热过程,也有过暖千与暖湿及干凉环境;晚更新世以冰缘坡面重力堆积环境为主控新世以湿热坡积环境为主.

For its characteristic high resolution the eolian Manshan loess is exposed along the south bank of Huanghe River,situated on the northwest suburbs of Zhengzhou City,Henan Province,which is wholly composed of loess strata,over 160 m thick,upward from loess L 15 or paleosol WS 1.The loess sequence in this area are perfect and the typical loess profiles are exposed in Taohuayu and Zhaoxiayu,in which the strata upward from paleosol S 2 at Taohuayu profile have been preliminary studied.According to the lithology,susceptibility,TL...

For its characteristic high resolution the eolian Manshan loess is exposed along the south bank of Huanghe River,situated on the northwest suburbs of Zhengzhou City,Henan Province,which is wholly composed of loess strata,over 160 m thick,upward from loess L 15 or paleosol WS 1.The loess sequence in this area are perfect and the typical loess profiles are exposed in Taohuayu and Zhaoxiayu,in which the strata upward from paleosol S 2 at Taohuayu profile have been preliminary studied.According to the lithology,susceptibility,TL and 14 C dating,the stratigraphical units have been subdivided into S 0,L 1,S 1,L 2 and S 2 with 0.6m,70.8m,9.9m,12.4m and 1.0m thick respectively.It is of great significance that there exist quite a thickness of Malan Loess (L 1) formed in the Late Pleistocene. We have sampled at an interval of 10cm and measured the profile magnetic susceptibility in the field and mass magnetic susceptibility in the laboratory respectively.The values of magnetic susceptibility of the Mangshan Loess is smaller than that inside the Loess Plateau.We have correlated the magnetic susceptibility profile with the SPECMAP marine oxygen isotope time series and inferred that the rapid changes in susceptibility values at the L 1/S 0,S 1/L 1 stratigraphic boundaries correspond with the oxygen isotope stage 2/1 (12.05ka) and 5/4(73.91ka) transitions respectively.With the two marked points,by using the Kukla's susceptibility age model to calculate the age of successive stratigraphic levels we then derived a chronology.Grain size of the loess during the last glaciation (L 1) was analyzed at an interval of 40cm,and depositional rate of each unit has also been calculated. The susceptibility of Chinese loess mainly manifests the prosperity or decline of the southerly summer monsoon from the low latitude ocean,so the susceptibility values may be used as a proxy index for the change strength of summer monsoon climate.Average deposit rate and resolution in late Pleistocene loess at Mangshan reveal a great difference of dust deposit blown and entrained by the northerly winter monsoon from the high latitudes area between glaciation and interglaciation or stadial and interstadial.The maximum mean deposit rate is up to 2.47mm/a during the last glaciation,whereas the minimum is 0.18mm/a yet during the last interglaciation.The frequency and amplitude of winter monsoon variations revealed by the grain size record whose mean resolution come to 40.5 a/10cm dring the last stadial in the last glaciation at Mangshan are more detailed than that by the Greenland ice core. The late Pleistocene loess strata in Mangshan are both related to and different from that inside the Loess Plateau.For its high resolution the Mangshan loess during last glaciation can reflect the abrupt climate changes of East Asian monsoon,and is a excellent record for the Past Global Changes study on high resolution and short timescale.

风成邙山黄土分布于河南郑州西北黄河南岸。黄土序列较完整,初步研究了桃花峪剖面S2以上黄土地层,S0、L1、S1、L2和S2分别厚0.6m、70.8m、9.9m、12.4m和1.0m。特别有意义的是晚更新世马兰黄土厚度巨大,分辨率高。以10cm间距对邙山桃花峪剖面进行了磁化率测量,并与海洋氧同位素时间序列进行对比,按Kukla等的磁化率年龄模式,获得相应的年代时间标尺。对末次冰期黄土以40cm间距进行了粒度分析,不同冰期或冰阶的平均沉积速率和分辨率有很大的差异。特别是末次冰期晚冰阶黄土粒度所反映的冬季风振荡的频率和幅度都超过了格陵兰冰芯记录。邙山晚更新世黄土地层是进行高分辨率黄土地层与短时间尺度过去全球变化研究的极好对象

 
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