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第四纪
相关语句
  quaternary
    Quaternary Transgressions in Shanghai Region
    论上海地区的第四纪海进
短句来源
    Quaternary Strata and Palaeoclimate in Shanghai Region
    上海地区第四纪地层与古气候
短句来源
    THE PERIODICITY OF VERTICAL VARIATION OF THE Fe~(3+)/Fe~(2+) RATIO IN THE QUATERNARY SEDIMENTS AND ITS APPLICATION IN THE CANGZHOU COASTAL AREA,HEBEI PROVINCE
    论沧州沿海地区第四纪沉积物的Fe~(3+)/Fe~(2+)垂直变化周期性及其应用
短句来源
    QUATERNARY TRANSGRESSIONS,EUSTATIC CHANGES AND SHIFTING OF SHORELINE IN EAST CHINA
    中国东部第四纪海面升降、海侵海退与岸线变迁
短句来源
    SOME PROBLEMS CONCERNING RESEARCH ON QUATERNARY INGRESSION-REGRESSION IN EASTERN CHINA
    中国东部第四纪海进、海退研究中存在的几个问题
短句来源
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  the quaternary
    THE PERIODICITY OF VERTICAL VARIATION OF THE Fe~(3+)/Fe~(2+) RATIO IN THE QUATERNARY SEDIMENTS AND ITS APPLICATION IN THE CANGZHOU COASTAL AREA,HEBEI PROVINCE
    论沧州沿海地区第四纪沉积物的Fe~(3+)/Fe~(2+)垂直变化周期性及其应用
短句来源
    A PRELIMINARY STUDY ON THE QUATERNARY STRATIGRAPHY ALONG GUANGXI COAST
    广西沿海第四纪地层的初步研究
短句来源
    A PRELIMINARY STUDY OF THE QUATERNARY MARINE STRATA AND ITS PALEOGEOGRAPHIC SIGNIFICANCE IN THE LUANHE DELTA REGION
    滦河三角洲地区第四纪海相地层及其古地理意义的初步研究
短句来源
    CONFERENCE ON THE COMPILING OF THE OFFSHORE PART OF THE QUATERNARY GEOLOGICAL MAP OF CHINA AND CONTIGUOUS SEAS HELD IN SHANGHAI
    “中国及毗邻海区第四纪地质图”海区编图会议在上海召开
短句来源
    THE QUATERNARY CORRELATION PROGRAMME OF THE OFFSHORE AND ALONGSHORE AREAS OF CHINA COME INTO EFFECT
    中国近海及其沿岸大陆第四纪对比计划开始实施
短句来源
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  in the quaternary
    THE PERIODICITY OF VERTICAL VARIATION OF THE Fe~(3+)/Fe~(2+) RATIO IN THE QUATERNARY SEDIMENTS AND ITS APPLICATION IN THE CANGZHOU COASTAL AREA,HEBEI PROVINCE
    论沧州沿海地区第四纪沉积物的Fe~(3+)/Fe~(2+)垂直变化周期性及其应用
短句来源
    Based on the investigation data, this paper divides systematically Quaternary strata of the studied area, and discusses primarlly the characteristics of the sedimentary structure in the Quaternary strata.
    本文根据实际调查资料,对研究区的第四纪地层层序进行了较系统地划分,并初步探讨了第四纪地层的沉积结构特征。
短句来源
  “第四纪”译为未确定词的双语例句
    QUARTERNARY REEF FACIES GEOLOGY STUDY IN XISHA ARCHIPELAGO MADE NEW PROGRESS
    西沙礁相第四纪地质研究取得新进展
短句来源
    A Preliminary Study on the Quatery Sedimentation as Shown by the Core KSO_1 From the Central Basin of the South China Sea
    南海中央海盆KSO_1岩芯第四纪沉积作用初探
短句来源
    MICROFOSSIL FAUNAS OF THE LATE MIOCENE-QUATERNARY IN DSDP SITE 451,WEST PACIFIC AND THEIR PALEOCEANOGRAPHIC IMPLICATIONS
    西太平洋DSDP451孔晚中新世—第四纪的微体化石群及其古海洋学意义
短句来源
    The productivity in the Early Miccene was 104.27 - 196. 33g/m2· a, while in the Middle Miocene about 174. 47g/m2 · a and the Pliocene-Quaternary 177.4.0-282. 93g/m2 · a. It is found that equatorial upwellingand Antarctic bottom currents bore much upon the primary biological productivity in the region.
    早中新世该区的生物生产力为104.27~196.33g/m~2·a,中中新世为174.47g/m~2·a左右,上新世至第四纪为177.40~282.93g/m~2·a。
短句来源
    The layer with velocity 3.4~4.2km/s is the Pliocene sediment stratum.
    上部的 1.8~ 2 .2km s的速度层相当于第四纪的地层 ,2 .8km s的速度层相当于上新世上部的地层 ,3.4~4 .2km s的速度层相当于上新世下部的地层 .
短句来源
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  quaternary
The trace representation of the dual of quaternary Goethals code G(m) is given.
      
Synthesis and surface-active property of bis-quaternary ammonium-sodium sulfate Gemini surfactant
      
N,N-dimethyldodecylamine, hydrochloride and epichlorohydrin (molar ration is 2:1:1) were used to synthesize bis-quaternary ammonium Gemini surfactant with a hydroxyl in its spacer group by the one-pot method.
      
This hydroxyl was sulfonated by chlorosulfonic acid and then neutralized to bis-quaternary ammonium-sodium sulfate zwitterionic Gemini surfactant.
      
Synthesis of bis-quaternary ammonium peroxotungstates (peroxomolybdates) and their catalytic activity in oxidation of alcohols b
      
更多          
  the quaternary
The distribution of Abies was deeply influenced by geological events such as the uplift of Himalaya, the Alps, the Rocky Mountains, the occurrence of the Asian Monsoon as well as the Quaternary glaciers.
      
Finally, the current distribution pattern appeared in the Quaternary.
      
The endemism was formed when some dispersal routes such as the North Atlantic Land Bridge, and the Bering Bridge became discontinuous during the Tertiary, as well as the climate change and glaciations in the late Tertiary and the Quaternary.
      
Derivatives of benzyl alcohol containing the quaternary ammonium fragment possessed auxin and anti-gibberellin (retardant) properties.
      
Polycondensation of a catalase (EC 1.11.1.6) with glutaraldehyde in order to stabilize the quaternary structure of an enzyme, maintain its activity, and protect it from thermal denaturation was studied.
      
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  in the quaternary
Finally, the current distribution pattern appeared in the Quaternary.
      
The glass formation regions in the quaternary system are either localized or continuous depending on the zirconium fluoride content.
      
In the quaternary systems, the glass formation regions are situated close to the corresponding planes of the composition tetrahedron.
      
Liquid-Vapor Equilibrium in the Quaternary System Water-2-Propanol-Calcium Chloride-Magnesium Chloride
      
The liquid-vapor equilibrium in the quaternary system water-2-propanol-calcium chloridemagnesium chloride at 40 and 60°C and 760 mm was studied.
      
更多          


Data from the qualitative and quantitative micropaleontological analyses of more than 20 cores provided abundant informations concerning Quaternary marine transgressions in Shanghai and its environs. The Quarternary Period in Shanghai region witnessed four marine transgressions with different intensity. The transgressions of Middle Pleistocene and the early Late Pleistocene were weak and represented by deposits of the transitional nature from marine to continental facies only. The strongest transgression occurred...

Data from the qualitative and quantitative micropaleontological analyses of more than 20 cores provided abundant informations concerning Quaternary marine transgressions in Shanghai and its environs. The Quarternary Period in Shanghai region witnessed four marine transgressions with different intensity. The transgressions of Middle Pleistocene and the early Late Pleistocene were weak and represented by deposits of the transitional nature from marine to continental facies only. The strongest transgression occurred in middle Late Pleistocene when shallow-marine deposits were accumulated. The strata of the Holocene transgression which is relatively strong may be subdivided stratigraphically into three parts. As shown by the horizontal distribution of Foraminifera, the intensity of Quaternary transgression is stronger in the east of Shanghai region than in the west. The comparison between micropaleontological and palynological data in Shanghai region has revealed a close correlation between sea-level changes and climatic fluctuations. In the light of the paleoecology of Foraminifera, Ostracoda and other groups of microfossils, as well as the sedimentological, palynological and archaeological data, this paper discusses in detail the depositional environments, the limits of transgressions and their geological ages during Quaternary time in Shanghai region.

根据微体古生物分析结果并综合其他资料,证明上海地区东部第四纪以来经历过四次海进:晚更新世中期和全新世的海进较强,形成浅海相沉积;中更新世与晚更新世早期的海进较弱,仅有海陆过渡相沉积。

The paper divides the Ouaternary Sedimentary strata in shanghai region into twelve sedimentation units by analysis of the lithological charactors and lithofacies got from the study of about 200 deep cores and 300 shallow cores in the region of shanghai.In addition based on analy- sis of sporo-pollen and microfossls,this paper gives the correspondent zones of the sporo-pollen composition and distribution of the land and marine deposits The accordance with the features of the sedimentary structure and the nature...

The paper divides the Ouaternary Sedimentary strata in shanghai region into twelve sedimentation units by analysis of the lithological charactors and lithofacies got from the study of about 200 deep cores and 300 shallow cores in the region of shanghai.In addition based on analy- sis of sporo-pollen and microfossls,this paper gives the correspondent zones of the sporo-pollen composition and distribution of the land and marine deposits The accordance with the features of the sedimentary structure and the nature of sporo-pollem compositions the Quaternary period might be derided into five cold stages,with foul intevening warm stages and the post-glacial stage.In order of time we denominated them as:Chung-min cold stage,Hu-Xi cold stage;Hu-Dung cold stage,Zha-Bei cold stage and Su-Zhou River cold stage.In terms of the date of microfossils and lith- oracies,they represent five marine transgressions with different scopes of activity corresponding to the above warm stage and the post-glacial stage.We denominated them as Jiang-Zheng transgression,Deng-Zhen transgression,Xi-giao transgression,Chao-Jia-Du transgression and Wai- Tau transgression. In the cold stage,lacustrime facies dominaten the deposits.In the warm stage,followed by the transgression,most of the deposits represent themselves as fluviatile facies with marine deposits in same parts of the region According to the method used in Palaeorlimatdogy and stratigraphic division,the Quaternary strata in Shanghai region may be divided as: ancient Pleistocene (stratal2—11);Early Pleistocene (strata10—9) middle Pleistocene (strata8—7);Late Pleistocene (strata6—3);new Pleistocene (strata2),and Holocene (strta1).

本文通过对上海地区约200个深孔和300个浅孔的岩性、岩相分析,把本区第四纪沉积层归纳为十二个沉积单元,并根据孢粉与微古分析资料得出与之相应的孢粉组合带及海陆相沉积。从沉积结构特征和孢粉组合特点,得出第四纪时期本区有五个寒冷期及与之相间的四个温暖期和冰后期,自早至晚分别命名为:崇明寒冷期、沪西寒冷期、沪东寒冷期、闸北寒冷期、苏州河寒冷期、根据微古和岩相等资料,发现有同温暖期和冰后期相呼应的五次不同范围的海浸,自早至晚命名为:江镇海浸、邓镇海浸、西郊海浸、曹家渡海浸和外滩海浸。在寒冷期以湖相沉积为主,在温暖期以河流相沉积为主,局部地区为海相沉积。按古气候地层划分原则,把本区第四纪地层划分为:古更新统(层12-11);早更新统(层10-0);中更新统(层8-7);晚更新统(层6-3);新更新统(层2),和全新统(层1)。

In May 1981 in Paipu commune of the county of Zuan, Hainan Island, Guangdong province, late Pleistocene dolomite has been discovered in the intertidal regine on the abrasion flat. It was confirmed as a sandy dolomite by the identifications of thin section, scanning electron microscopy, staining techniques, X-ray diffraction techniques and thermocouple analysis. This dolomite is euhedral rhombic form of very finely crystalline(6-18μ)with zonal texture. More iron substitutes for magnesium in the dolomite lattice...

In May 1981 in Paipu commune of the county of Zuan, Hainan Island, Guangdong province, late Pleistocene dolomite has been discovered in the intertidal regine on the abrasion flat. It was confirmed as a sandy dolomite by the identifications of thin section, scanning electron microscopy, staining techniques, X-ray diffraction techniques and thermocouple analysis. This dolomite is euhedral rhombic form of very finely crystalline(6-18μ)with zonal texture. More iron substitutes for magnesium in the dolomite lattice to form solid-solution; the clastic grains in the rock consist of 20-25%.Pleistocene dolomite of Paipu, Hainam Island is of replacement origin. It occurs in Pleistocene sandy and rubbly sediments as a abrasion terrace in the intertidal zone and in environments of mixture of subsurface water with marine salty water and with intermittent subaerial exposure resulting from tides. The discovery of intertidal sandy dolomite would enrich the types and diagenesis of Quaternary dolomite. It has important role in the interpretation of formation of old dolomite.

1981年5月于广东省海南岛儋县排浦公社首次发现珊瑚岸礁海蚀坪潮间带的更新世白云岩.经薄片、扫描电镜、染色、差热和X光衍射等分析鉴定,确认它是砂质白云岩.白云石为菱形极细晶,具环带构造;有较多的Fe~(++)取代Mg~(++)形成类质同象.岩石中石英和岩屑约占20—25%. 海南岛排浦更新世白云岩是在海蚀坪潮间带,更新世砂砾质沉积物中,由海水蒸发,渗透回流,以及淡水与海水或粒间水混合的变盐度的局部还原环境中形成的交代白云岩。这种潮间带的砂质白云岩的发现,丰富了第四纪白云岩的类型和成岩环境,对古代白云岩成因的解释具有重要意义.

 
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