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dating data
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  测年数据
     Based on the palynological analysis results for two cores from the Hong River delta, Vietnam together with the sedimentary characteristics and the high precision AMS ~(14)C dating data, the centennial-to millennial-scale climate changes over this area during the past 5,000 years were reconstructed. Three obvious cooling events were revealed and began in 4,530 cal.
     根据对越南红河三角洲的2个钻孔的孢粉分析结果,结合沉积特征和高精度的 AMS14 C测年数据,恢复了近五千年来百年-千年尺度的气候变化,发现了3个分别开始于4 530 cal.
短句来源
     Based upon the analysis of drilling lithology、 sedimentary facies、 sedimentary gyration、 granularity、 wave speed、 dating data and sporopollen information in Kunming Basin, combining with the forefather datum and archaeomagnetism, the division evidence of Hthostratigraphy and chronostratigraphy is determined, the studies on the Quaternary stratigraphic division and correlation are carried out.
     根据昆明盆地钻孔岩性、沉积相、沉积旋回、沉积物粒度特征、波速特征、~(14)C、光释光、热释光测年数据和孢粉组合等资料,结合前人钻孔资料和古地磁特征,确定了岩石地层和年代地层的地层划分依据和标志,绘制了单孔综合柱状图、连孔柱状对比图以及昆明盆地钻孔第四系综合柱状图,提出了详细的岩石地层和年代地层划分和对比方案。
短句来源
     Based on more than 2 000 km of subbottom profiling data collected during 1992 to 1993 cruise and 1999 cruise and the dating data of sediment from core QC2, the late Pleistocene sedimentary stratigraphic structure in the central and western areas of southern Yellow Sea was analysed, and the geological ages of different strata were determined.
     利用1992-1993航次和1999航次获得的2000多公里的浅地层剖面资料,结合QC2钻孔岩芯的测年数据,对南黄海中西部海域晚更新世沉积地层结构进行了分析,并对地层进行了地质年代标定。
短句来源
     Some paleomagnetic data and ESR dating data coincide with geochronometer published in 2000,and may be regarded as subsidiary basis for chronostratigraphic classification.
     部分地层的古地磁和ESR测年数据与2000年公布的地质年代数据基本吻合,可以作为年代地层划分的辅助依据。
短句来源
     By means of inclusion thermometry and authigenic illite dating data,the oil and gas migration and accumulation model in the central anticlinal zone in the Xihu Sag of the East China Sea Basin has been studied.
     利用包裹体测温和成岩矿物伊利石测年数据资料,对东海盆地西湖凹陷中央背斜带油气运移及成藏的基本模式进行了研究。
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  年龄数据
     Based on the isotopic dating data of volcanics and recent research achievements of age boundary between Jurassic and Cretaceous systems, it is suggested that the volcanic series in Shengyuan basin must be attributed to Lower Cretaceous.
     本文根据盛源盆地火山岩同位素年龄数据和侏罗 白垩系界线年龄的最新研究成果 ,认为盛源盆地火山岩系的地层时代应属早白垩世。
短句来源
     The isotopic dating data show that the Yixian formation should be Early Cretaceous in age,formed 135-120 Ma ago,and the sedimentary beds of lacustrine facies,containing precious fossils,such as Sinosauropteryx,Confuciusornis,Archaefructus liaoningensis etc. ,formed 125-127 Ma ago.
     同位素年龄数据显示义县组时代为早白垩世,其形成年龄介于135~120Ma之间,含中华龙鸟、孔子鸟和辽宁古果等珍稀化石的湖相沉积层是在125~127Ma之间形成的.
短句来源
     Besides, based on dating data of the continental basement collected in South China (508 values) and Australia (1178 values), several problems about the formation and growth of South China continental crust are discussed in this paper.
     此外,对比收集到的华南508个、澳大利亚1178个基底年龄数据,探讨了华南基底地壳形成和生长的几个相关问题。
短句来源
     Base on the isotopic dating data from ours and others at home and abroad, the ages of the valuable fossiliferous beds containing Confuciusornis and Sinosauropteryx are not still accurately determined but their stratigraphic range may be limited between 125.2 to 122.1 Ma.
     综合分析我们及国内外同行的同位素年龄数据,虽然仍然不能准确确定含孔子鸟、中华龙鸟等化石的四合屯珍稀化石层的时代,但可以将其时代范围限制在125.2Ma—122.1Ma之间。
短句来源
     This discovery provides important dating data for the geological evolution of the Qinghai—Tibet Plateau.
     这一发现,为研究青藏高原的地质演化提供了重要的年龄数据
短句来源
  测年资料
     A STUDY OF DEPOSITIONAL RATE IN THE NORTH CHINA PLAIN DURING THE PAST 40000 YEARS, BASED ON ~(14)C DATING DATA FROM A LARGE WEALTH OF SAMPLES
     基于大样本~(14)C测年资料的华北平原沉积速率研究
短句来源
     The North China Plain is an area where much research in Quaternary geology has been done and a large number of 14C dating data is available from published materials.
     华北平原是我国研究程度较高的地区,历年来积累了大量的14C测年资料
短句来源
     On the basis of the research for the heavy minerals in Quaternary sediments in Yichang area which lies at the end of the Three Gorges and the research data of regional geology,sedimentary character of sections and ESR dating data,one can find that heavy minerals character in alluvial fan and fan-delta before(0.73) Ma is different from that in the sediments in terrace and present river sands.
     通过对三峡出口处宜昌地区第四纪沉积物中重矿物特征的研究,结合区域地质资料、野外沉积特征研究和样品ESR测年资料,认为0.73 Ma以前的冲积扇—扇三角洲沉积中重矿物特征明显不同于之后的阶地沉积及现代河床沉积物。
短句来源
     Based on the development of sedimentation, the overlying regulation of meter-scaled cycles, Fisher graphs and the maximum sea flooding events, the Wanlong Formation in southern Jilin Province can be divided into nine 3~(rd)-order sequences. According to Sr and C dating data, the ages of the lower Wanlong Formation and Badaojiang Formation are 850 Ma and 812 Ma, respectively, and the age of every 3~(rd)-order sequence is about 4.2 Ma.
     依据沉积发育过程和米级旋回的叠置规律、费希尔图解、最大海泛事件等层序划分对比方法,吉南万隆组可划分出9个三级层序,根据Sr、C同位素测年资料,万隆组底部绝对年龄为850Ma、八道江组底部绝对年龄为812Ma,每个三级层序的年限约为4.2Ma。
短句来源
     The sedimentary characteristics of the section at the top of Snake Mountain and previous dating data suggest that the deposition of the Sheshan Formation ended in the late part of the last glacial epoch.
     蛇山顶部开挖的剖面沉积特征及前人的测年资料表明,蛇山组沉积结束于末次冰期晚期。
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  “dating data”译为未确定词的双语例句
     Using 14C dating data from 456 locations in the North China Plain, average depositional rate (RT) for the period from the year when the sample was deposited to present has been calculated, and the temporal variation in RT are plotted.
     利用华北平原456个地点的14C年龄与样品埋深资料,计算出了各个样品所在层位沉积以来的平均沉积速率(RT),以此来近似反映各地点的平原沉积速率,并据此建立了RT随时间的变化关系。
短句来源
     Based on isotopic dating data of late Mesozoic volcanic rocks in Zhejinag since 1980, the age ranges of both the Jiande Group and the Moshishan Group are in 135~117Ma, and those of the Yongkang Group, the Tiantai Group and the Qujiang Group are between 111~90Ma.
     根据 8 0年代以来对浙江中生代晚期火山岩同位素年代学的研究资料 ,浙江省建德群和磨石山群火山岩年龄在 135~ 117Ma之间 ,永康群、天台群和衢江群火山岩年龄在 111~90Ma。
短句来源
     Dating data show that andesite, the host rock of the Qinglongtan deposit, was formed during Late Cambrian 〔(514.2±8.5) Ma〕, and skarn mineralization took place at about 290 Ma.
     放射性同位素测年结果表明,青龙滩矿床的主岩———安山岩形成于晚寒武世(514.2±8.5)Ma,后期的矽卡岩矿化大约发生在290Ma。
短句来源
     The metallogenic times are the late stage of early Yanshanian period or late Yanshanian period with the dating data of 78 Ma~147 Ma.
     其成矿时代为燕山早期晚阶段或燕山晚期,其年龄值为78Ma~147Ma
短句来源
     Furthermore, much testing work have been done,such as: ①Becauseof lacking precise dating data, 7 40Ar/39Ar dating experiments have been done;
     在室内也做了大量测试和研究工作:①由于区域缺乏精确的定年结果,论文做了7件白云母40Ar/39Ar定年;
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  dating data
Using radiometric dating data, the students develop possible phylogenetic pathways for hominid evolution.
      
Carbon dating data of changes in seal level during the Holocene at the Nile delta coast provide eustatic depth-time curve of the region.
      
Chronology establishment and dating data analyses on lacustrine deposits in northeastern Sahara show that vast fresh lakes existed over there between 9900-2400 a B.
      
According to the analyses of tens of lakes on the Plateau, most dating data fell into the range of 40-25 ka BP, some lasted to 20 ka BP.
      
This paper presents new zircon SHRIMP U-Pb dating data for igneous zircons from the Kuhai gabbro and the Dur'ngoi diorite in the Kuhai-A'nyemaqen tectonic belt, which are 555±9 Ma and 493±6 Ma, respectively.
      
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This paper introduces the successful experiments to determine the 14C dating of the samples by using the chemical treatment of lithium carbide(Li2C2) . The key of the success lies in the restraining of the sublimation of lithium^ The authors suggest the principle and programme of innovating the cooling equipment of lithium reactor in this paper.The results were satisfactory.By using this method the ratio of transformation from CO2 to C2H2 could reach as high as 98 percent, while by using SrC2 method, the ratio...

This paper introduces the successful experiments to determine the 14C dating of the samples by using the chemical treatment of lithium carbide(Li2C2) . The key of the success lies in the restraining of the sublimation of lithium^ The authors suggest the principle and programme of innovating the cooling equipment of lithium reactor in this paper.The results were satisfactory.By using this method the ratio of transformation from CO2 to C2H2 could reach as high as 98 percent, while by using SrC2 method, the ratio is 70 percent.40 14C dating data are published here.Among them four data were compared or rectified with the data measured by other laboratories.They all showed very good coincidence.

本文介绍了应用碳化理(Li_2C_2)法进行化学制样测定~(14)C年代获得成功的试验。抑制鋰的升华作用是成功的关键。文中提出了改革鋰反应器冷却装置的根据和方案。试验结果是令人满意的。从CO_2到C_2H_2的转化中碳的收率高达98%(而S_tC_2法为70%左右)。本文发表了40个~(14)C年代数据,其中4个进行了互校对比,一致性很好。

The low background radiocarbon dating data automatic accqisition and processing system described in this paper can automatically change samples and give radiocarbon date, date standard deviation.

本文介绍的低本底~(14)C年龄测定的自动数据获取与处理装置能直接给出样品,~(14)C年龄、年龄的标准偏差。实现了测量、数据处理和换样全自动化。

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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