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地层划分
相关语句
  stratigraphic division
    A NEW METHOD FOR STRATIGRAPHIC DIVISION BASED ON MILANKOVITCH THEORY
    基于米兰柯维奇理论的地层划分新方法
短句来源
    STRATIGRAPHIC DIVISION AND NOMENCLATURE OF THE SOUTHWESTERN NANSHA SEA AREA
    南沙海域西南部地层划分及命名
短句来源
    (2) The sharp changes of the REE contents in depth divided core CC48 into 5 layers that provided information for deep sea stratigraphic division.
    (2)稀土元素含量随深度发生变化,为地层划分提供了依据,应用元素地层学方法将岩芯分成5个层段。
短句来源
    The Late Mesozoic toCenozoic zonation schemes of calcareous nannofossil, foraminifera , radiolaria and dinoflag-ellate were established on basis of the information gained from DSDP and ODP,and theresolution of stratigraphic division can be as high as less than 0. 1Ma using numerous ma-rine bio-datum events.
    通过对大洋沉积物的研究,利用生物属、种的始、末现面事件建立起了晚中生代一新生代高精度的钙质超微化石、有孔虫、放射虫以及沟鞭藻的化石带,综合利用这些基准面事件,可使地层划分精度达10万年以内。
短句来源
    The carbonate is on the high side in the aeolian silt sediments formed in the glacial lowering of sea level in Core E, but on the low side in the transgressive sand beds formed in interglacial period. The content variation of carbonate has a direct bearing on the grain size and the styles of sediments, and is a good indicator to the climate, environment and stratigraphic division.
    (4)E孔在冰期低海面时期风成粉砂沉积中碳酸钙含量偏高 ,间冰期时海侵沙层中碳酸钙的含量偏低 ,碳酸钙含量变化与粒度和沉积物类型有关 ,对气候、环境和地层划分有良好的指示
短句来源
  stratigraphical division
    THE STRATIGRAPHICAL DIVISION OF DC-2 COLUMNAR CORE FROM THE EAST CHINA SEA
    东海DC-2孔柱状岩芯的地层划分
短句来源
    According to explaination of the high resolution subbottom profile records, we had completed the acoustic stratigraphical division of the present Changjiang river submarine delta.
    通过对高分辨率的声探剖面的分析解译,对现代长江水下三角洲进行了声学地层划分
短句来源
  stratigraphic divi sion
    A NEW METHOD FOR STRATIGRAPHIC DIVISION BASED ON MILANKOVITCH THEORY
    基于米兰柯维奇理论的地层划分新方法
短句来源
    STRATIGRAPHIC DIVISION AND NOMENCLATURE OF THE SOUTHWESTERN NANSHA SEA AREA
    南沙海域西南部地层划分及命名
短句来源
    (2) The sharp changes of the REE contents in depth divided core CC48 into 5 layers that provided information for deep sea stratigraphic division.
    (2)稀土元素含量随深度发生变化,为地层划分提供了依据,应用元素地层学方法将岩芯分成5个层段。
短句来源
    The Late Mesozoic toCenozoic zonation schemes of calcareous nannofossil, foraminifera , radiolaria and dinoflag-ellate were established on basis of the information gained from DSDP and ODP,and theresolution of stratigraphic division can be as high as less than 0. 1Ma using numerous ma-rine bio-datum events.
    通过对大洋沉积物的研究,利用生物属、种的始、末现面事件建立起了晚中生代一新生代高精度的钙质超微化石、有孔虫、放射虫以及沟鞭藻的化石带,综合利用这些基准面事件,可使地层划分精度达10万年以内。
短句来源
    The carbonate is on the high side in the aeolian silt sediments formed in the glacial lowering of sea level in Core E, but on the low side in the transgressive sand beds formed in interglacial period. The content variation of carbonate has a direct bearing on the grain size and the styles of sediments, and is a good indicator to the climate, environment and stratigraphic division.
    (4)E孔在冰期低海面时期风成粉砂沉积中碳酸钙含量偏高 ,间冰期时海侵沙层中碳酸钙的含量偏低 ,碳酸钙含量变化与粒度和沉积物类型有关 ,对气候、环境和地层划分有良好的指示
短句来源
  “地层划分”译为未确定词的双语例句
    Stratigraphy of Core EA05 from Southern East China Sea Continental Shelf Since the Last Glacial Maximum and Its Paleo-Environment Implication
    末次盛冰期以来东海陆架南部EA05岩心地层划分及其古环境意义
短句来源
    The results indicate that most of the invariable elements and microelements in Core E and the ratios of Mn/Fe, Sr/Ba, Sr/Ca, Ti/Al in especial show significant changes in the boundary strata type. So they can be used as characteristic indicator to distinguish Quaternary strata.
    结果表明 ,(1 )E孔大部分常量元素、微量元素含量、尤其元素特征比值(Mn/Fe ,Sr/Ba,Sr/Ca ,Ti/Al)在地层分界处都有明显变化 ,可作为该区第四纪地层划分的重要指标 ;
短句来源
    DIVISION OF THE COASTAL QUATERNARY LAYERS AND COASTAL SUBSIDENCE-ELEVATION IN THESOUTH CHINA
    华南沿海第四纪地层划分和海岸升降
短句来源
    HOLOCENE STRATIGRAPHICAL DIVISIONS AND SEA LEVEL CHANGES IN COASTAL FUJIAN
    福建沿海全新世地层划分与海面变化
短句来源
    Quaternary Strata of the Minjiang Estuary and Their Geologic Ages
    闽江河口第四纪地层划分和地质年代研究
短句来源
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  stratigraphic division
An application of micropaleontology-sequence stratigraphy method in stratigraphic division
      
The formation of the Paleogene in the Chengbei fault-step zone of the Dagang off-shore area is very complex and the stratigraphic division and correlation are relatively difficult.
      
The study considers Well Zhangcan 1 as an example to prove that the scheme of stratigraphic division is feasible by conducting micropaleontology-sequence stratigraphy in the Guanjiapu area of the Chengbei faultstep zone.
      
Lithostratigraphic correlation made it possible to compare stratigraphic division of Core ASV 1372 with other cores recovered from the Voring Plateau and the shelf and continental slope off the central Norway.
      
Stratigraphic division based on minor elements in the sediment core Q43 from the outer shelf of the East China Sea: Approached t
      
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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)。

Based on X-ray diffraction analysis, infrared absorption spectrum, differential thermal analysis and electronic microscope photo analysis of clay minerals of sediments in 17 geologic columns from the East China Sea shelf area have been completed. Their association features, their application of clay mineral in dividing the Recent Epoch stratum and their paleoevironment significance are described.

本文通过东海陆架区十七个柱状剖面沉积物中粘土矿物X射线衍射分析、红外吸收光谱、差热分析及电子显微镜照相,对东海陆架区全新世地层中粘土矿物组合面貌、粘土矿物在全新世地层划分中的应用及其古环境意义作了 阐述。

Based on the vertical change of the heavy mineral parameters in seven holes, the Late Pleistocene-Holocene strata of the East China Sea continental shelf, formed since forty thousand years B. P., are divided into 4-6 units. In most of the holes, the Early-Late Holocene strata develop well, and in one or two holes not well. Usually the layer in which the parameters have a sudden change is just a stratigraphic classification boundary. The boundary is roughly in keeping with that determined by petrography, palaeobiology...

Based on the vertical change of the heavy mineral parameters in seven holes, the Late Pleistocene-Holocene strata of the East China Sea continental shelf, formed since forty thousand years B. P., are divided into 4-6 units. In most of the holes, the Early-Late Holocene strata develop well, and in one or two holes not well. Usually the layer in which the parameters have a sudden change is just a stratigraphic classification boundary. The boundary is roughly in keeping with that determined by petrography, palaeobiology and carbon-14 dating data. The significance of the heavy mineral provinces in horizontal strata correlation, and in indicating sedimentary environment and detrital sediment features and sources are also discussed. The conclusions basically agree with the information on the modern estuarine sediment flux and the spreading dynamics of the sediments of the East China Sea shelf, obtained by joint Sino-U.S.A. investigation.

本文根据七个钻孔中重矿物参数在垂直方向上的变化,将东海陆架晚更新世—全新世四万年以来的地层划分为4—6层。其中,大部分钻孔早、中、晚全新世地层发育完全,少数钻孔的全新世地层缺失。通常各矿物参数变化明显转折的层位就是地层分层界线之所在,并与岩性、古生物、~(14)C年代地层学的结果大体一致。文章还探讨了重矿物组合分区对横向地层对比、沉积环境、碎屑沉积特征和物质来源的意义。这些结论与中美联合调查所获得的东海陆架河口现代物质通量和扩散范围的沉积动力学状况基本吻合。

 
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