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生物地层
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  biostratigraphy
     OLIGOCENE DINOFLAGELLATE BIOSTRATIGRAPHY IN NORTHERN SOUTH CHINA SEA, SITE 1148 OF ODP LEG 184
     南海ODP184航次1148站位渐新世沟鞭藻生物地层
短句来源
     LATE MIOCENE-EARLY PLIOCENE BIOSTRATIGRAPHY OF LOC. 93002 SECTION, LINGTAI, GANSU
     甘肃灵台文王沟(93002地点)晚中新世──早上新世生物地层
短句来源
     MIDDLE AND LATE CARBONIFEROUS CONODONT BIOSTRATIGRAPHY OF NORTH CHINA
     华北中、晚石炭世牙形石生物地层
短句来源
     The timing of extension and metamorphic core complex development in the Yiwulü Shan is broadly constrained as Early Cretaceous (ca.127~116 Ma) by published and unpublished U-Pb geochronology,~(40)Ar/~(39)Ar thermochronology, and stratigraphic age determinations based upon biostratigraphy in the hanging wall supradetachment Fuxin basin.
     已经发表的和未发表的锆石U Pb年龄、40 Ar/3 9Ar热年代学和上盘阜新盆地中生物地层的时代研究表明 ,地壳伸展和变质核杂岩形成时代为早白垩世 (约 12 7~ 116Ma)。
短句来源
     THE BIOSTRATIGRAPHY AND BOUNDARY BETWEEN THE CARBONIFEROUS AND PERMIAN IN SOUTHERN GUIZHOU AND NORTHWESTERN GUANGXI
     黔南、桂西北石炭、二叠纪之交的生物地层及其界线
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  biostratigraphic
     The biostratigraphic unit from lower to upper is divided into Probowmania zone, Taitzeuia-Crepicephalina zone, Black-welderia-Cyclolorenzella parabola zone, Chuangia zone, Tsinaniu zone, Tellerina zone.
     生物地层单位从下而上为Probowmania带,Taitzeuia-Crepicephalina带,Blackwelderia-Cyclorenzella,parabola带,Chuangia带,Tsinania带,Tellerina带。
短句来源
     Jurassic Biostratigraphic Sequence in the Middle of Northern Tibet
     藏北地区中部侏罗纪生物地层层序
短句来源
     A QUANTITATIVE BIOSTRATIGRAPHIC CORRELATION AND SUBSIDENCE ANALYSIS FOR EASTERN ZHUJIANG RIVER MOUTH BASIN
     珠江口盆地东部定量生物地层划分对比及沉降历史分析
短句来源
     Biostratigraphic dating indicates that the whole sampled interval belongs to the asymetrica-elevata Zone of the planktonic foraminifera zonation, defined by the concurrent range of Globotruncanita elevata and Dicarinella asymetrica, and nannofossil standard zone CC17b/UC12 with the marker species Calculites obscurus, Lucianorhabdus cayeuxii (both normal and curved forms) and Arkhangelskiella cymbiformis, which can be correlated to the Early Campanian.
     生物地层数据显示采样层位整体位于浮游有孔虫asymetrica elevata 带,由Globotruncanita elevata 和Dicarinellaasymetrica 的共同出现来界定。 钙质超微化石Calculites obscurus、Lucianorhabdus cayeuxii、Arkhangelsk iella cymbiformis 的出现指示属于钙质超微化石带CC17b/UC12,相当于Campanian初期。
短句来源
     Construction of the biostratigraphic database and its significance
     古生物地层数据库建设及其意义
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  biostratigraphic units
     According to the definition of different biostratigraphic units,the Paleozoic biostratigraphic units in Shandong can be divided into 41 biobelts. Of them,21 belong to Cambrian;
     本文按照不同生物地层单位的含义,对山东古生代生物地层单位进行了厘定,共划出41个生物带,其中寒武纪有21个;
短句来源
     DIVISION OF PALEOZOIC BIOSTRATIGRAPHIC UNITS IN SHANDONG
     山东古生代生物地层单位的划分
短句来源
     Through the purification and study of the North China type Permo-Carboniferous biostratigraphic units of Henan Province, 5 fusulinid and 4 conodont biostratigraphic units are collated and stipulated on the basis of the distribution of the fossils in the main section and the Stratigraphic Guide.
     通过对河南省华北型石炭纪—二叠纪生物地层单位的清理与研究 ,根据和牙形石在主干剖面上的纵、横向分布规律 ,依据地层指南 ,共厘定出 5个类和 4个牙形石生物地层单位。
短句来源
     Authors had preliminarily sortted out biostratigraphic units,taking the Qinggouzi section as an example,by using the former's data,according to the principle of the multiple stratigraphic division when we had mapped for the Baishan City sheet(1:50 000) in 1991-1993,and established 5 formal biostratigraphic unitsrangzones,6 non formal biostratigraphic units-bearing biogenic fossil beds.
     笔者等于1991~1993年在白山市幅(1/5万)区调填图时,以区内的青沟子剖面为例,利用前人在该剖面上连续采集的三叶虫生物化石资料,按照多重地层划分的原则,对生物地层单位进行了初步清理,建立了5个正式生物地层单位—延限带,6个非正式生物地层单位—含生物化石层。
短句来源
     The assemblage is divisible into two successive biostratigraphic units, based on acritarch first appearances and coinciding generally with the Azygograptus suecicus and Undulograptus austrodentatus graptolite zones respectively.
     根据疑源类类型在地层柱的首次出现,可划分两个与Azygograptus suecicus和Undulograptus austrodentatus笔石带相吻合的疑源类生物地层单元。
短句来源
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  “生物地层”译为未确定词的双语例句
     The subsamples collected from the positions at 20, 35, 58, 62 and 75 mm from top to bottom in a crust 97 mm thick were studied.
     生物地层法计年的样品,取自厚度为97mm结壳的自顶至底的20mm、35mm、58mm、62mm及75mm处。
短句来源
     The Changes of the CaCO3 content,coarsefraction(>150μm) content and planktonic foraminifera faunal variationsshow that the dissolution of CaCO3 was great during 0.5-0.4 Ma.
     从碳酸钙含量、>150μm 的粗组分含量、浮游有孔虫沉积通量以及浮游有孔虫生物地层揭示出在 0.5-0.4Ma 研究区深海碳酸盐遭受强烈溶解。
短句来源
     Based on logging,seismic stratigraphic and magnetobiostratigraphic studies,the age of the base of Qigequan Formation in Sanhu depression is believed to be 2.80 Ma,it is at a depth of 1 747 m in Xinshen 1 well drilled in Sebei area.
     基于测井、地震地层和磁性生物地层的研究,三湖坳陷七个泉组底的年龄为2.80M a,位于涩北新深1井1 747 m。
短句来源
     THE NEOGENE FORAMINIFERAL STRATIGRAPHY OF THE LH-19-4-1 BORE HOLE, PEARL RIVER MOUTH BASIN, SOUTH CHINA SEA
     南海珠江口盆地LH-19-4-1井新近纪有孔虫生物地层研究
短句来源
     This age is complimentary to radiometric data rangingfrom 16.78-14.11 Ma, and Mammal biozones MN4-MN5.Using the coexistence approach of Mosbrugger and Utescher quantitativepalaeoclimatic data has been obtained from the Shanwang biota for the first time.
     这个年龄值也与同位素测年的结果16.78-14.11Ma,以及根据哺乳动物划分的生物地层带MN4-MN5相一致。
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  biostratigraphy
Recent approach to Buchia biostratigraphy from the Tethyan Himalaya area, China
      
Dinocyst biostratigraphy of the Upper Cretaceous of northern Siberia
      
The importance of Precambrian microfossils for modern biostratigraphy
      
New data on Upper Kimmeridgian-Tithonian biostratigraphy and ammonites of the eastern Crimea
      
Biostratigraphy of Jurassic-Cretaceous boundary sediments in the Eastern Crimea
      
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  biostratigraphic
The age of young zircon population coincides with the biostratigraphic age of host sequences.
      
The biostratigraphic subdivision of Upper Quaternary sediments is based on foraminifers.
      
Together with biostratigraphic data, recent data on the mineral composition of key moraine units can be used for solving these issues.
      
Based on the detailed biostratigraphic study of the entire polyfacies sedimentary complex in the Uralian foredeep, the distribution of Late Paleozoic (Middle Carboniferous-Permian) phosphate occurrences and phosphorite deposits is shown.
      
Assessment of diachronism of biostratigraphic boundaries by magnetochronological calibration of zonal scales for the Lower Creta
      
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  biostratigraphic units
Based on the study of trilobites, ten biostratigraphic units are recognized.
      
It covers the period from the Upper Cenomanian to the Maastrichtian, including 15 biostratigraphic units (beds with characteristic assemblages or local zones), and is correlated with the inoceram zonation.
      
A new biostratigraphic scheme proposed for the upper Tithonian-Berriasian of the Crimean Mountains includes the following new biostratigraphic units: the Euvirgalithacoceras cf.
      
The Dvuyakornaya Formation section in the eastern Crimea is described and subdivided into biostratigraphic units based on ammonites, foraminifers, and ostracodes.
      
Stratigraphic distribution of microphytoplankton studied in detail is used to distinguish 10 biostratigraphic units in the rank of dinocysts zones.
      
更多          


Copious“megaspores”of Balmeisporites occur in the Mesozoic strata of DaqingOil-Field.They are larger in size and various in morphological aspects.Here adescription is given of 2 genera and 10 species,of which 1 genus and 8 species arerecognized as new to science.In this paper a brief discussion is made of the sedi-mentary environment and facies,in consideration of which their stratigraphical cor-relation is also proposed.Besides,the Balmeisporites-bearing beds,i.e.the upperpart of the Qingshankou formation and...

Copious“megaspores”of Balmeisporites occur in the Mesozoic strata of DaqingOil-Field.They are larger in size and various in morphological aspects.Here adescription is given of 2 genera and 10 species,of which 1 genus and 8 species arerecognized as new to science.In this paper a brief discussion is made of the sedi-mentary environment and facies,in consideration of which their stratigraphical cor-relation is also proposed.Besides,the Balmeisporites-bearing beds,i.e.the upperpart of the Qingshankou formation and the lower part of the Yaojia formation,areregarded as belonging to late Cretaceous in age.

大庆油田发现了大量的巴尔姆孢,所产层位主要是白垩系的姚家组下部与青山口组上部。巴尔姆孢不仅具有个体较大,形态特殊,演化迅速等特点,而且其分布受一定沉积环境的控制,具有重要的生物地层意义。本文通过对巴尔姆孢的研究,对细分层进行了划分和对比,并对其沉积环境和沉积相以及地质时代作了初步探讨。建立了一新属,八新种。

The biostratigraphy of Cretaceous/Tertiary boundary sections from eight localities is summarized and compared in order to define a continuous or complete section. The El Kef, Tunisia, section is apparently the thickest C/T boundary section, as yet described, and contains all of the biostratigraphical criteria required to define a complete section; that is, the uppermost Cretaceous Micula prinsii zone, the "boundary clay" within the lowest Tertiary Globigerina fringa zone followed by the Globigerina eugubina...

The biostratigraphy of Cretaceous/Tertiary boundary sections from eight localities is summarized and compared in order to define a continuous or complete section. The El Kef, Tunisia, section is apparently the thickest C/T boundary section, as yet described, and contains all of the biostratigraphical criteria required to define a complete section; that is, the uppermost Cretaceous Micula prinsii zone, the "boundary clay" within the lowest Tertiary Globigerina fringa zone followed by the Globigerina eugubina and pseudobulloides zones. Using these zonations, a correlation of the stable isotope stratigraphy from the various sections was made. The latest Cretaceous oceans and the earliest Tertiary oceans contained significantly different isotope signals, which were incorporated into the tests of the calcareous nannofossils. The carben-isotope signals are apparently global, synchronous and primarily determined by changes in oceanic fertility, whereas the oxygenisotope signals are globally induced but modified regionally according to paleogeographic position and paleocirculation patterns. Further, this combi-nation of bio-and isotopestratigraphy indicates that Cretaceous nannofossils in the lowest Tertiary sediments, previously thought to be reworked, actually survived the C/T boundary events and continued to reproduce in the earliest Tertiary oceans. These relic species only became extinct some tens of thousands years after the actual C/T boundary, probably as a consequence of the environmental stress following the C/T boundary events rather than as a result of a "catastro-phic" extinction coinciding with the C/T boundary.

本文总结了八个地区白垩纪—第三纪界线的生物地层资料,试图确定一个完整的连续剖面.其中,突尼斯的艾尔·凯夫剖面出露最厚,生物地层标志也最全,包括白垩纪最顶部的Micula Prinsii带;第三纪最下部Globigerina fringa带中的“界线粘土”以及Globigerina eugubina and pseudobulloides带.根据这一分带,笔者对比了各剖面的稳定同位素地层标志.资料表明,白垩纪最晚期和第三纪最早期海洋的同位素组成,差别极大.碳同位素的变化主要取决于海洋养分的变化,显然是全球性的,因而具有等时性.氧同位素的变化虽然也具全球性,但受古地理位置及古循环系统的局部影响.同位素地层与生物地层资料的一致性表明,第三系底部沉积物中的“白垩纪”超微化石,并非再搬运的,而是白垩纪—第三纪界线事件的幸存者,在第三纪最早期海洋中仍继续繁衍.这些孓遗种属在界线事件后几万年才发生灭绝,理应为事件造成的环境变化的结果,而不是事件本身引起的”灾变性”灭绝.

The evidences of intermittent upheavel of earth crust by neo-tectonicsin this area are obvious. Limestones has been eroded and solved manytimes to form lacuna and band set on platforms of different elevation.Tiers of karstic caverns distributed on the cliffs provide an ideal advantagefor analysis of the stages of geomorphologic evolution and the history ofthe karstic development. The geomorphologic features formed in differentstages are discussed. Karsts of non-neotectonic genesis are discriminated.Regional...

The evidences of intermittent upheavel of earth crust by neo-tectonicsin this area are obvious. Limestones has been eroded and solved manytimes to form lacuna and band set on platforms of different elevation.Tiers of karstic caverns distributed on the cliffs provide an ideal advantagefor analysis of the stages of geomorphologic evolution and the history ofthe karstic development. The geomorphologic features formed in differentstages are discussed. Karsts of non-neotectonic genesis are discriminated.Regional geomorphologic survey and a comprehensive investigation on thedevelopment of underground river system provide a practical approach toanalyze the multiple-stage geomorphology and the karstic development. Mammal fossils in caves are discussed. The majority mammals were ofAiluropoda-Stegodon lived between meso-Pleistocene and neo-Pleistocene.The numbers, species and ages of fossils are closely correlated withgeomorphologic position, relative elevation and the ancient catchment areaof the caverns. Data processing has been done in consideration with thesecorrelations. A statistic method for analyzing data of geomorphologic ageand fossil age and data of U-series radiochronology is suggested.

区内新构造运动间歇性抬升迹象明显,侵蚀、溶蚀使石灰岩分布区形成镶嵌在各个不同高程台面上的凹洼地形或条带,深切沟谷的陡壁上往往高悬多层洞穴。在调查区域地貌和地下河系发育演化的基础上分析多层地貌,讨论喀斯特发育史,并探索用统计方法来处理地貌相对年代与生物地层年代的途径。

 
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