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海口组
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  haikou formation
     Dur-ing recent 1:50000 regional surveys, fossils organisms of 12 groups were discovered therein,which were identified to be mainly late Middle Devonian to early Late Devonian elements. Onthe basis of the features of lithologic associations,the Haikou Formation and Zaige Formationmay be distinguished.
     通过近期1:5万区调工作,在其中发现了十二个门类生物化石,经鉴定主要为中泥盆世晚期-晚泥盆世早期的分子,依岩性组合特征划分为海口组和宰格组。
短句来源
     Abstract The Haikou Formation of Middle Devonian in Luquan contains coal bearing sediments (predominantly clastic rocks)which are of littoral origin and yield abundant fishes, fossil plants and pelecypods.
     云南禄劝中泥盆世海口组为以碎屑岩为主的滨海相含煤沉积,地层中产有丰富的鱼类、植物和双壳类化石;
短句来源
     The author suggests that the Haikou Formation be used for the former, while the Wanglougang for the latter.
     笔者认为前者应采用海口组,而后者采用望楼港组。
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  相似匹配句对
     Group E is the highest.
     B
短句来源
     ] group.
     ]
短句来源
     The Engineering Geology of Gray Clay of Zhangjiang Group of Quaternary System in Haikou District
     海口地区第四系湛江灰色粘土的工程地质特性
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     Love in Haikou
     海口之恋
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The rock samples for the present study were collected from the Longhuashansuccession,one of the classical Devonian sections(cf.Fig.1)in the Zhanyi districtof eastern Yunnan.The deposits attain 279 m.thick and can be divided into two parts.The upper one contains a macroscopic florule represented by Protolepidodendronscharyanum Krej(?)i and Protopteridium minutum Halle and was previously consideredto be Middle Devonian or Eifelian in age(Halle,1936;Hsü,1966).Associated withthese plant impressions are abundant...

The rock samples for the present study were collected from the Longhuashansuccession,one of the classical Devonian sections(cf.Fig.1)in the Zhanyi districtof eastern Yunnan.The deposits attain 279 m.thick and can be divided into two parts.The upper one contains a macroscopic florule represented by Protolepidodendronscharyanum Krej(?)i and Protopteridium minutum Halle and was previously consideredto be Middle Devonian or Eifelian in age(Halle,1936;Hsü,1966).Associated withthese plant impressions are abundant mio-and megaspores,being well preserved in abed of mainly greyish-white,mudstones(ACE 123).Over 60 species of miospores and10 species of megaspores are found.This paper is intended to illustrate and describethe megaspores firstly.Three new genera are here proposed:Longhuashanispora,Cor-onispora and Cereusisporites.The authors arrived at the conclusion that the geological age of the upper partmay be assigned to Givetian based on the following lines of evidence:(1)the presenceof the miospore-assemblage which contains Retusotriletes,Archaeozonotriletes,Chelino-spora,Samarisporites,Hystricosporites,Ancyrospora and especially Archaeoperisaccus;(2)The occurrence of megaspores,Lagenoisporites and Nikitinsporites,of which thelatter is the very same as Archaeoperisaccus in the stratigraphic value;(3)thesimilarity of the megaspores to those of the late Middle Devonian in the size-range(Chaloner,1967);and(4)the co-existence of a fish-fauna including the leading formBothriolepis,which is largely of late Middle Devonian in our country.The spore-assemblage of the lower part of this section may be correlated withthat of the Emsian of the neighbouring Qujing district as discussed in an earlierpaper.It is highly probable that the Eifelian stage is missing in this section,for afault and/or a disconformity is said to be observed in a bed of 38m.between thelower and the upper spore-bearing strata.

本文记述了龙华山剖面上部地层(“海口组”)发现的大孢子化石,共计5属、10种,其中3新属、8新种,未定种1个,大孢子类型1个。根据孢子组合特征和相关的证据,认为该段地层的地质时代属于中泥盆世晚期(Givetian)。

The arthrodires described here were collected from Middle Devonian Haikou Formation, which is widely distributed in Yunnan and well known for plenty of Bothriolepis and yielded petalichthyids Quasipetalichthys haikounensis, crossopterygian and non-Bothriolepis antiarchian remains as well as plants. Kunmingolepis lucaowanensis gen. et sp. nov. and Yangaspis jinningensis gen. et sp. nov. came from the districts of Kunming and Jinning respectively. In Kunming and its neighboring regions including Jinning Haikou...

The arthrodires described here were collected from Middle Devonian Haikou Formation, which is widely distributed in Yunnan and well known for plenty of Bothriolepis and yielded petalichthyids Quasipetalichthys haikounensis, crossopterygian and non-Bothriolepis antiarchian remains as well as plants. Kunmingolepis lucaowanensis gen. et sp. nov. and Yangaspis jinningensis gen. et sp. nov. came from the districts of Kunming and Jinning respectively. In Kunming and its neighboring regions including Jinning Haikou Formation (S. S) overlies pre-Devonian rocks and is directly succeeded by Upper Devonian rocks, Zaige Dolomite. It ranges in thickness from several to about 30 m. But in Wuding district, where Exutaspis megista gen. et sp. nov. came, Haikou Formation lies on Upper Lower Devonian Pochiao Formation and is over 350 m in thickness. There the bed carrying Exutaspis together with antiarchian Wudinolepis woni is about 30 m under Bothriolepis bed and 27 m above Pochiao Formation.Exutaspis megista, the largest phlyctaeniidae fish known so far, is reprented by a model of ventral face of the head roof. It is 21 cm in length from anterior margin to posterior end of the head roof and 22.5 cm in breadth between posterolateral angles. The head roof is remarkable in having gently concave anterior margin, a pair of prominent posterolateral and less distinct postero-masial angles, a very strong convex posterior end. The anterior margin of the head roof extends forward beyong the anterior border of the dorsal wall of the postethmo-occipital bone and laterally to form the anterior boundary of the orbital notch. Thus, it is probably that the postnasal plate is fused with the preorbital one and the lost rostral capsule may be rather reduced. The orbital notch is very deep. The sclerotic rim has left the print together with a few bone remains of it in original position. The well developed anticular fossa has an oval shape and rough surface. The para-articular projects as processes lateral to both sides of the head roof.On the sensory canal system only twe piece of the supraorbital canal have left their impressions. It seems that the supraorbital canals run backward not far from the anterior margin of the head roof. The ornamentation consists of small round tubercles.The structure of the ventral face of the head roof are well shown in the model. The latero-caudal descending lamina is poorly developed, only the part anterior to the anterior post-orbital process can be seen. The supraorbital area is fairly distinct, On both sides of the model of head shield lateral to the dorsal wall of the endocranium there is a very deep groove, which just forms the anterior boundary of the (?)ucullaris depression and the postorbital process liens on its bottom. The same structure was also exhibited in Kujdanowiaspis (Stensio 1945, fig. 1) and Sz(?)lepis (Liu 1979, p1. I. 1). In fact, this groove should be caused by a ridge for which the name cucullaris ridge is proposed here. It descends from the ventral face of the head roof. The cucullaris depression is very remarkable, stretching just from cucullaris ridge backward to the median thickening. Along the posterior margin the ventral surface of the head shield thickens into a strong median thickening, which projects laterally to form a para-articular and is pitted with the articular fossa median to the para-articular process. The endolymphatic thickening extends backward and somewhat laterally, and finally joins the median thickening just in front of the articular fossa.Except that the subnasal shelf is unknown, the postethemo-occipital bone is essentially the same as those in Kujdanowiaspis, Stuetzeaspis and Szelepis. But it has rather short otic region with remarkable anterior postorbital process which extends postro-Iaterally as far as the margin of the head roof. The posterior postorbital process is slender and does not bifurcate in distal end. The occipital region is narrow but with developed supravagal process.Yangaspis is represented by an anterior ventro-(?)ateral plate with stout but damaged spinal plate. The anterior ventro-lateral plate is much broad and its anterior margin and internal overlap areas suggests that in this animal no independ antero-ventral plate has developed. In the proportion of the breadth to the length the anterior ventrolateral recalls that of petalichthyids Lunaspis, but in Lunaspis this plate has a straight median margin and is contact with the opposite one in middle part. Under our poor knowledge of the trunk armour of petalichthyids, we would like to put Yangaspis into Phlyctaeniidae.The Kunmingol(?)pis is represented by five anterior lateral plates. The plate is roughly trapezoid in shape. It is gently convex with highest point near the centre of the plate and divided into quadrants by ridges. The anterior quadrant is slightly inturned but not forms a clearly defined apron. The ornamentation consists of small tubercles. Comparing with well-known forms of "Arctolepids" the anterior lateral plate much more approaches the corresponding ones of "Kujdanowiaspis" (White 1969, figs. 23—28), but it differs from all in having longer basal margin, backwardly sloping dorsal margin, a deep emargination for intero-lateral plate in lower part of the anterior margin and a large emarginate posterior margin unoverlapping posterior lateral plate.

本文记述了节甲鱼类中称为北极鱼类的三个新属种:Exutaspis megista,Kunmingolepislucaowanensis,Yangaspis jinningensis,化石分别采自武定海口组(广义),海口和晋宁的海口组。代表我国中泥盆世该类化石鱼类的首次记述。

The Jiucheng Formation in Wuding, Yunnan, is distingushed by its fish fossils, which include arthrodires Jiuchengia, Yinostius, Xiangshuiosteus, Exutaspis, Holonema and some antiarchs. Its age was considered as Eifelian, Middle Devonan. In this Paper,the comprehensive analysis of the Jiucheng Formation is made, and its geological age is referred to the Late Emsian, Early Devonian.In Wuding, the sequence of Devonian strata is continuous, and there is not any sedimentary gap between the Jiucheng Formation and...

The Jiucheng Formation in Wuding, Yunnan, is distingushed by its fish fossils, which include arthrodires Jiuchengia, Yinostius, Xiangshuiosteus, Exutaspis, Holonema and some antiarchs. Its age was considered as Eifelian, Middle Devonan. In this Paper,the comprehensive analysis of the Jiucheng Formation is made, and its geological age is referred to the Late Emsian, Early Devonian.In Wuding, the sequence of Devonian strata is continuous, and there is not any sedimentary gap between the Jiucheng Formation and the underlying Pojiao Formation or the overlying Haikou Formation. The Pojiao Formation, with the typical Pojiao fauna, corresponds roughly to the Yejiang Formation, and its age should be Early Emsian. The Haikou Formation of Yunnan corresponds to the Tiaomajian Formation of Hunan, since both formations yield Hunanolepis- Bothriolepis assemblage. On t he basis of the conodonts,tentaculitesand spore-pollen assemblages, the Qiziqiao Formation, which overlies the Tiaomajian Formation, has been considered to be of Early Givetian. Consequently, the Tiaomajian Formation should be of Eifelian in age. The same is true of the Haikou Formation. With regard to the early vertebrate fauna, the arthrodires of the Jiucheng Fomation are quite suggestive of those of the Verdalen Member and Grey Hock Formation in Spitsbergen, and of the Murrumbidgee Group in Australia. The age of those arthrodires in Europe and Australia is Late Emsian, Early Devonian,suggesting the Late Emsian age of the Jiucheng Formation in Wuding, Yunnan.

通过地层层序与生物群分析,云南武定地区旧城组的时代相当于早泥盆世Emsian晚期。武定地区泥盆系连续沉积,旧城组之下为具“坡脚动物群”的坡脚组,与郁江组相当。旧城组应是四排阶的沉积,产有丰富的节甲鱼类化石,面貌与欧洲及澳大利亚同期的节甲鱼类相近。海口组应归入中泥盆世早期的Eifelian阶,大致相当于湖南的跳马涧组。

 
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