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   later than 在 地质学 分类中 的翻译结果: 查询用时:0.218秒
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later than
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  晚于
    The magnetostratigraphical Study of red beds from Shanghang, based on multicomponent analysis of stepwise demagnetization path of specimen, show that the age of Chishi Group should be assigned to K_2 (70—80Ma) and Shaxian Formation should be assigned to K_(1-2) (80—105Ma), the oxidation of red beds took place 3—5Ma later than their deposition.
    根据样品逐步退磁的多成分分析,上杭红层磁性地层学研究表明,赤石群时代当为K_2(70—80百万年),沙县组时代为K_(1-2)(80—105百万年),红层的氧化晚于沉积3—5百万年。
短句来源
    Compared the environmental evolution process with the international research results on paleo-cli-mate fluctuation in Holocene, consulted 14C dating of some layers, the author considered that the first paleo-seismic traces, which was found in the trench, was formed later than 6000 a,B. P, the secondones later than 2500 a, B. P.
    结合新疆特殊的地理条件,将上述环境演变过程与国内外全新世气候波动研究结果相比较,并参考有关(14)~C数据,作者认为该探槽中发现的第一次古地震活动应晚于6000a,B.P,第二次古地震活动似应发生于2500a,B.P之后。
短句来源
    Their formation time was not later than Early Carboniferous (C 1), and the emplacement took place before the formation of Late Triassic Yiwanshui Formation (T 3 y ).
    其形成时代不晚于早石炭世(C1),侵位在晚三叠世一碗水组(T3y)之前。
短句来源
    The subvolcanic rocks in the fossil-bearing beds give an Ar/Ar age of 122.1±2.6 Ma B.P. , proving that the fossil-bearing beds of the Sihetun Village may not be later than 122.1±2.6 Ma in age.
    含珍稀化石沉积层中次火山岩的Ar/Ar年龄为122.1±2.6Ma,证明了四合屯珍稀化石层时代不可能晚于122.1±2.6Ma。
短句来源
    The Motianling granite sample(S1) collected beneath the onlap boundary gives a TIMS U-Pb zircon age of 825±2.4 Ma,implying that the deposition within the Neoproterozoic rift systems began at the time later than 825±2.4Ma.
    取自该地区沉积超覆面之下摩天岭花岗岩样品的TIMS锆石U-Pb同位素年龄为825.0±2.4Ma,表明该地区新元古代裂谷系开始接受沉积的时间应该晚于825±2.4Ma;
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  “later than”译为未确定词的双语例句
    the mineralization age is from 70-90 Ma, which is 25-47 Ma later than the age of host rocks;
    矿化年龄集中在70~90Ma之间.
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    The dating result shows that the sericite_adularia type epithermal Ag_Au mineralization was formed 5 Ma later than the acid_sulfate type epithermal Cu_Au mineralization in Zijinshan area.
    这一结果显示 ,紫金山地区的酸性硫酸盐型浅成热液矿化比绢云母_冰长石型浅成热液矿化早 5Ma左右。
短句来源
    2)The calcites formed in different mineralization stages displayed different reflectance spectroscopic characteristics in minor elements and aquosity, the calcites formed during the mineralization stage had an absorbility of Fe~(3+)at 890 nm and 400 nm wavelengths, respectively, the calcites formed later than the mineralization stage had an absorbility of H_(2)O and OH at 1922 nm and 1400 nm, respectively;
    反射光谱学研究揭示不同成矿期方解石的光谱学特征不同,反映了它们在特征元素、含水性等方面均存在差异,成矿期方解石以890nm和400nm两个波长处Fe3+氧化物的吸收为特征,而成矿期后的方解石则分别在1922nm和1400nm呈现明显的水的吸收。
短句来源
    The study of 40Ar/ 39Ar isotope chronology reveals that the activity of Qiugemingtashi—Huangshan ductile shear zone shows different features in different periods of time. In the early stage, the shear zone was characterized by nappe shearing, starting later than 300 Ma and lasting at least to 283.7 Ma. However, it can be sure that the activity ended at 280.2 Ma.
    系统的Ar-Ar同位素年代学研究表明,该剪切带的活动在时间上具有多期性:剪切带早期为挤压推覆剪切作用,发生于300Ma之后,至少延续到了283.7Ma,但在280.2Ma时已经终止;
短句来源
    According to the isotopic dating, the sericite from the gold ore yields a 40Ar- 39Ar age of 242.8±0.8 Ma,which is a little bit later than the 40Ar- 39Ar age of 244.2±0.3 Ma obtained from the biotite of diorite near the ore district.
    40Ar-39Ar同位素测年结果表明,南金山金矿石中绢云母的40Ar/39Ar坪年龄为242.8±0.8Ma,相当于印支早期,略晚于南金山金矿床附近闪长岩中黑云母的40Ar/39Ar坪年龄(244.2±0.3Ma),这表明印支早期闪长岩对南金山金矿床的形成起着重要的控制作用。
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  later than
agrili was more than one month later than that of its host.
      
This fact permitted the assumption that the mechanisms ensuring the identification of emotions against the background of noise by stuttering children form in ontogeny later than that in normally speaking children.
      
The hypothesis is discussed that blood is filtered by neutrophils accumulated in capillaries, which ensures the contact of neutrophils with microorganisms no later than 5-10 min after the microorganisms enter the blood circulation.
      
The period of the maximum synthesis of plasmin-like enzymes was observed 6 h later than the period of the maximum growth rate ofB.
      
firmus 44b, and 3 h later than the maximum growth rate period ofB.
      
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The experimental work on Inada granite and Yamaguchi marble was done by using the general triaxial test machine. It is shown that from a certain stress state, while both the maximum and the minimum principal stress were kept constant, the rock rupture can be caused by change of the intermediate principal stress. In this case as a precursor of rupture, the increasing of the acoustic emission appeared much later than that caused by change of the maximum principal stress. The possibility of earthquakes cause'd...

The experimental work on Inada granite and Yamaguchi marble was done by using the general triaxial test machine. It is shown that from a certain stress state, while both the maximum and the minimum principal stress were kept constant, the rock rupture can be caused by change of the intermediate principal stress. In this case as a precursor of rupture, the increasing of the acoustic emission appeared much later than that caused by change of the maximum principal stress. The possibility of earthquakes cause'd by changes of the intermediate principal stress was discussed.

用真三轴试验机对福田花岗岩和山口大理岩进行了实验研究.表明,如果从一定的应力状态开始,保持最大主应力和最小主应力不变,单独改变中等主应力可以引起岩石的破坏.在这种情况下破坏前声发射率急剧增长的前兆比由最大主应力增加引起岩石破坏时的声发射前兆出现晚得多.联系这一现象对中等主应力变化引起地震的可能性进行了探讨.

The Gaotaigou boron deposit occurred in the metamorphic rocks of the Xinkaihe Formation of the Proterozoic Jian Group, and its occurrence is conformable with the strata. Ore-bodies lay in serpentinite and magnesite—serpentinite of the middle and upper part of ore—bearing beds.There is a gradual transition between the ore-bodies and ore—bearing beds, and iss directly proportional to each other in thickness. Boron—bearing minerals are chiefly boromagnesite and ludwigite. Residua of metamorphic minerals and hydrothermal...

The Gaotaigou boron deposit occurred in the metamorphic rocks of the Xinkaihe Formation of the Proterozoic Jian Group, and its occurrence is conformable with the strata. Ore-bodies lay in serpentinite and magnesite—serpentinite of the middle and upper part of ore—bearing beds.There is a gradual transition between the ore-bodies and ore—bearing beds, and iss directly proportional to each other in thickness. Boron—bearing minerals are chiefly boromagnesite and ludwigite. Residua of metamorphic minerals and hydrothermal mineral assemblage are also observed. All the fractures and veins crosscut the ore-bodies and are later than metallogensis. Boron is derived from sediments, and its concentration coefficient is 3—47 in the metamorphic rock, but there is a higher degree of concentration in magnesian marble and serpentinite, and the concentration coefficient is up to 33—1033. The content of B_2O_3 increases with that of MgO. This Boron deposit pertains to a sedimentary—metamorphic one underwent a regional migmatization and hydrothermal process.

在六十年代初期,对吉南地区硼矿成因曾有不同认识,当时流行着内生硼镁石矽卡岩及混合岩化等成因观点。吉林局则认为是沉积变质成矿,并依此观点指导找矿,取得成效。一九六四年及一九六六年编制的“吉林省集安县高台沟硼矿地质勘探报告”中指出:硼矿的成因是沉积变质,后经混合岩化作用及其热液迭加改造而成矿。地层中硼元素的来源可能与海底火山喷发有关。一九七一年《吉林地质》第3期(当时系内部刊物)上撰文发表,文中列举了大量实际资料,论证了沉积变质成矿的特点。为向广大读者提供硼矿成因材料,现把一九七一年发表的文章重新刊出。

The intrusive body genetically related closely to the mineralization of the Dexing Porphyry Copper Ores is assumed to be a“complex”or “composite instrution”of intermediate-acidic igneous.Which consists minly of granodiorite porphyry(Ⅰ),granodiorite porphyry(Ⅱ), diorite,quartz-diorite porphyrite,lamprophyre and felsic dykes. Among the three main intrusive bodies in the ore field,that of the Tong-Chang's is typical of the type,in which the sesondary granodiorite porphyry(Ⅱ)is no doubt present as small dykes intruded...

The intrusive body genetically related closely to the mineralization of the Dexing Porphyry Copper Ores is assumed to be a“complex”or “composite instrution”of intermediate-acidic igneous.Which consists minly of granodiorite porphyry(Ⅰ),granodiorite porphyry(Ⅱ), diorite,quartz-diorite porphyrite,lamprophyre and felsic dykes. Among the three main intrusive bodies in the ore field,that of the Tong-Chang's is typical of the type,in which the sesondary granodiorite porphyry(Ⅱ)is no doubt present as small dykes intruded into the main body(Ⅰ).As widely occurred intrusive dykes,the quart -diorite porphyrite occurred intramineral and later than the main granodiorite porphyry and partly intruded into the later one. The author believed that the main intrusive body of Tong-Chang is basically granodiorite porphyry,and that in the light of its relativelyz higher basicity and local lithological transition this main body may partly graded both into quartz-monzodiorite porphyrite at the upper part and quartz-diorite porphyrite at the very restricted marginal area. The authors of this paper give great emphasis on the fact that the rock-type of this main intrusive body,considering that it is most important in relation to the reserch of the ore genesis and to the geological exploration of this porphyry copper deposite.

与德兴斑岩铜矿床具成生联系的侵入岩体,主要是由花岗闪长斑岩(Ⅰ)、花岗闪长斑岩(Ⅱ)、闪长岩、石英闪长玢岩、长英质细晶岩和闪斜煌斑岩组成的“杂岩体”.在矿田的三个主侵入岩体中,铜厂岩体是具代表性的一个。在这里,二次入侵的花岗闪长斑岩确实是存在的,它以小型岩脉入侵在主斑岩体(Ⅰ)内.石英闪长玢岩以岩脉广泛出现,它在成矿作用期间和在主斑岩体之后产出,并入侵于主斑岩体.作者认为,铜厂主斑岩体本质上系花岗闪长斑岩。由于斑岩本身岩石化学上略偏基性和局部岩性的演变,它可以在斑岩体上部部分地演变为石英二长闪长玢岩,而且在斑岩体边部局部地段可递变为石英闪长玢岩.由于涉及矿床成因的研究以及该类斑岩铜矿的勘查,本文作者特强调了这一主侵入体的岩石类型.

 
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