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地层单位的英文

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"地层单位"怎么读用"地层单位"造句

英文翻译手机手机版

  • stratigraphic unit
  • stratigraphicunit

例句与用法

  • Time - stratigraphic unit
    时代地层单位
  • The ayadeng and sailinhudong formations were established in the 1970 ' s by the regional geological survey , and the former was considered to belong to the proterozoic baiyunebo group and the later belonged to the sinian system
    摘要阿牙登组和腮林忽洞组是上世纪70年代1 / 20万区调建立的地层单位,当时将阿牙登组置于白云鄂博群,腮林忽洞组归于震旦系。
  • According to representative section , tectono - stratigraphic unite , rock association character , beidahe group is divided a , b , c petrofabrics . the lithology of a petrofabric is amphibolite , gneiss interlated with schist , accidental marble . the lithology of b petrofabric is schist interlated with marble , quartzite
    根据代表性剖面的研究,在构造岩石地层单位序列划分变质地层的原则指导下,按变质岩石组合特征划分了a 、 b 、 c三个岩组。
  • According to the characteristics of lithology and lithofacies , the principle that lithostratic unit group is related to volcano cycle or sedimentary cycle , jiangnan region can be divided into two groups , wuyi region can be divided into three groups , nanling region can be divided into four groups
    根据岩性岩相特征,结合岩石地层单位群与火山旋回或沉积旋回相对应的原则,将江南区划分为两个群,武夷区划分为三个群,南岭区划分为四个群。
  • Abstract according to the " stratigraphic guide of china and its explanation " and based on the general rules for naming stratigraphic units and the principles of priority , a fairly detailed discussion is made on the correct use of the formation - rank names of the lithostratigraphic units of the mesozoic paralic facies of the longzhaogou group in the east of heilongjiang province
    摘要以《中国地层指南及中国地层指南说明书》 (修订版)为依据,以地层单位命名的一般规定为准绳,以地层单位命名的优先权为法则,对黑龙江省东部地区中生代晚期海陆交互相地层龙爪沟群组级岩石地层单位名称的正确使用问题,进行了较为详细的讨论。
  • In this paper , the authors prove the sedimentary environment of every lithostratigraphic unit of devonian , and precisely divide the geomorphic units of petrologic paleogeography of that period , based on the multiple division and detailed study to the petrostratigraphy , biostrtigraphy and sequence stratigraphy of devonian in hubei and its adjacent provinces
    摘要通过对湖北及邻省泥盆纪岩石地层、生物地层与层序地层进行多重划分对比和详细研究,以大量实际资料确定该时期各岩石地层单位的沉积环境,准确划分出该时期岩相古地理地貌单元。
  • The further study shows that the sandstones at the bottom of the lower ganchaigou formation , which is a tr lithostratigraphic unit , were deposited in different stages of base level cycle , and they are not chronostratigraphic unit . so , to identify different sequences , especially high order sequences in analysis of terrestrial stratigraphic sequences , the sequence distribution feature must be fully consided . this view has practical significance for recognizing forming , evolution and filling history of qaidam baisn correctly , and has both theorical and practical meaning for directing further oil exploration
    研究还表明,传统岩石地层单位中下干柴沟组底部的砂岩代表了基准面变化旋回不同阶段沉积的产物,它们属于不同的成因单位,也非等时地层单位,因此,在进行陆相层序地层分析时,各级层序尤其是高级层序的识别要充分考虑面上的层序展布特点,这一观点对正确认识柴达木盆地的形成演化和沉积充填历史,指导今后的勘探具有一定的理论和实际意义。
  • 2 . by the analysis of grain - size accumulative centigrade content , grain - size composition and grain - size parameters performed on samples in baijiaziu profile and mafangtan profile , nine stages of hydrological and climatic changes since the last 1300 years have been distinguished . the first , the third , the fifth , the seventh and the ninth layers of the stratigraphical sequence are finer while the second , the fourth , the sixth and the eighth are coarser
    据此,将白家嘴剖面划分为9个地层单位, 4个沉积旋回,其中剖面1 、 3 、 5 、 7 、 9层较细, 2 、 4 、 6 、 8层较粗,并认为此沉积序列表明近1 . 3ka以来渭河古水文与古气候大致经历了9个变化阶段。
  • Eight aspects related to the study of early precambrian metamorphic stratigraphy are dealt with in this paper : general situation of the study ; complexity of the stratigraphy and difficulties of the study ; thoughts and methods of the study ; division of rock suite , rock group and complex rock ; researches on important regional discordances ; types and characteristics of protolith and recovery of palaeoenvironment ; correct differentiation of the metamorphic strata , ttg rock system and other metamorphic plutonic rocks ; determination of the ages of the metamorphic strata
    摘要主要论述了与早前寒武纪变质地层(学)有关的8个方面的问题:早前寒武纪变质地层的研究概况;早前寒武纪变质地层的复杂性和研究难度;早前寒武纪变质地层研究的思路和工作方法;早前寒武纪变质岩石地层单位岩群、岩组和杂岩的划分问题;重要区域性不整合的研究;鉴定变质地层的原岩类型、岩石性质和恢复古环境;正确区分变质地层和ttg岩系以及其他变质深成岩;变质地层时代的确定。
用"地层单位"造句  

其他语种

百科解释

地层单位在地层学中是指根据岩层的不同特征或属性将其划分成的不同单位。由于划分依据的不同,可分为岩石地层单位、年代地层单位、生物地层单位等。
详细百科解释
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