侏罗系的
- 与 侏罗系的 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Based on the theory of Sequence Stratigraphy and the systematically analysis of strata which was closely focused on Lithostratigraphy, Biostratigraphy, Paleoecology Event Stratigraphy and Sequence Stratigraphy, four long-term base-level cycles can be recognized in the Mesozoic, each long-term base-level cycles can be further divided into intermediate-term to short-term base-level cycle. Eight intermediate-term base-level cycles are recognized in Mesozoic; Cenozoic can be divided into two structural base-level cycles, and can be further divided into seven long-term baselevel cycles.
应用层序地层学理论,在详细的岩石地层、生物地层、生态地层、事件地层和层序地层为核心的综合地层研究基础上,将中生界划分为四个长期基准面旋回,每个长期基准面旋回内部又可进一步识别出更次一级的旋回,侏罗系内部共可识别出8个次级旋回;根据钻井层序地层与地震地层划分结果,将北缘地区新生界划分为两个构造基准面旋回,其内部又可进一步划分为7个长期基准面旋回。
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Although there is a little carbonite caused by some magmatic dikes in the CarboniferousPermiam coal, most Carboniferous-Permian coal has no great differences in vitrinite reflectance, crystalline indices, bulk specific gravity, hardness, and the content of velotile matter from the Jurassic coal, and both are super-anthracite.
区内石炭—二叠系煤与侏罗系煤除了前者含有一些由侵入体造成的天然焦或半焦外,二者均为超无烟煤,在镜质体反射率、煤晶核结构、显微硬度、挥发份和容重等方面上均没有明显的差异,说明区域变质是在煤系地层沉积之后发生的。
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In order to discuss the relationship of coal measures and uranium deposit, extensive field exploration and systemic indoor analysis were conducted.
鄂尔多斯盆地东胜地区侏罗系煤与砂岩型铀矿在空间上密切共存,为探讨煤与铀矿的关系,进行了广泛的野外调研和系统的室内分析。
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Meanwhile, the relict stratum of Jurassic in Shanxi and Henan Province can compare with the stratum in Ordos. So we can inferred from that the eastern boundary of the basin is on the east of Luliang Mountain. However, Taihang Mountain has already risen in Indo-Chinese epoch,so the farthest place of the east boundary can only be Taihang Mountain.
同时,山西和河南等地的侏罗系残留地层与鄂尔多斯可以进行对比,可以推断,盆地的东界在吕梁山以东,而太行山在印支期已经隆起,所以盆地的东界最远只能达太行山。
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Silicalites, predominated by pelitic silicalite, occur in collisional zones and back-arc basins. In the collisional zones, they occur as rock sheet as an important part ofophiolitic mé lange, belonging to ophiolitic mélange type silicalite. In the back-arc or interarc basin, they occur as pelitic silicalite intercalation varying in thickness, characteristic of "silica merl",and belonging to abyssal back-arc basin type or carbonate type silicalite. In the magmatic arc, they occur as intercalation related to volcanic hydrotherm or volcalic exhalation, belonging to volcanic arc type silicalite.
在硅质岩方面:冈底斯构造带侏罗系硅质岩主要属泥质硅质岩,在各个碰撞结合带和弧后盆地中均有产出,主要的产出状态有:①在碰撞结合带中呈岩块产出,构成蛇绿混杂岩的重要组成部分,属蛇绿混杂岩型硅质岩;②在弧后或弧间盆地中呈厚度不等的泥质硅质岩夹层产出,常具"硅灰泥"特征,属弧后深水盆地型硅质岩;③呈夹层状产于弧火山岩系中,属火山热液或火山喷气型硅质岩。
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On basis of measurement of homogeneous temperature of inclusions, analysis and calculation of δ〓C and δ〓O, and SEPM analysis, the author has studied the forming temperature of authigenic quartz and carbonate minerals for the first time. Furthermore, the author points out that it is unreasonable to recover paleo-geothermal gradient directly using homogeneous and modern burial depth.
作者在包裹体均一温度测量、碳氧同位素测量和计算及电子探针分析的基础上,首次对吐哈盆地侏罗系自生石英和碳酸盐矿物的形成温度进行了研究,确定了这两种成岩矿物的形成温度,并指出直接用包体均一温度和地层现埋深恢复古地温梯度存在不合理性。
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Paleontologists in China's Henan Basin discovered this nest of fossilized eggs laid by the Jurassic duck-billed herbivore Hadrosaurus.
古生物学家在中国河南省盆地发现了这窝的蛋化石所奠定的侏罗系嘴巴像鸭的单食草动物鸭嘴龙。
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Lithologic character of Eogene syste is interbedded sandstone and mudstone primarily, including the thin layer oil shale, Neocene- Quaternary system is set of rivers deposits. Based on this, through the reaserch of ateral correlation and distribution characteristics of every structural layers show that: Paleozoic synthem overall thickness of relatively stable.The residual thickness of Mesozoic synthem is difference in the horizontal, Residues in the horizontal thickness of greater difference, to the greatest thickness achieve to 4500m. Eogene syste has obviously fault depression basin deposition characteristic, the thickness of many sags achieve to 3000 m ,from Neocene, the stratum crosswise mop tended to be stable.
在此基础上,通过对各构造层横向对比以及展布特征的研究表明,古生界构造层整体厚度相对稳定,冷武-奥陶系残留厚度在1200m左右,石炭-二叠系残留厚度在800m左右;中生界构造层残留厚度在横向上差异较大,最大厚度达到4500m,其中,下-中三叠统仅发育于南部小部分地区,最大厚度在1000m以上,侏罗系-下白垩统整体具有南厚北薄的展布特征,南部冠北洼陷厚度最大,达到3500m;新生界古近系具明显的断陷式盆地沉积特征,多个洼陷厚度在3000m以上,新近纪以后地层横向展布趋于稳定。
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Silicalites, predominated by pelitic silicalite, occur in collisional zones and back-arc basins. In the collisional zones, they occur as rock sheet as an important part ofophiolitic mé lange, belonging to ophiolitic mélange type silicalite. In the back-arc or interarc basin, they occur as pelitic silicalite intercalation varying in thickness, characteristic of "silica merl",and belonging to abyssal back-arc basin type or carbonate type silicalite. In the magmatic arc, they occur as intercalation related to volcanic hydrotherm or volcalic exhalation, belonging to volcanic arc type silicalite.
在硅质岩方面:冈底斯构造带侏罗系硅质岩主要属泥质硅质岩,在各个碰撞结合带和弧后盆地中均有产出,主要的产出状态有:①在碰撞结合带中呈岩块产出,构成蛇绿混杂岩的重要组成部分,属蛇绿混杂岩型硅质岩;②在弧后或弧间盆地中呈厚度不等的泥质硅质岩夹层产出,常具&硅灰泥&特征,属弧后深水盆地型硅质岩;③呈夹层状产于弧火山岩系中,属火山热液或火山喷气型硅质岩。
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Based on analysis of heavy minerals, detrital components of gravel - bearing coarse fragment s, maturity of minerals and clay components of mudstones, it is believed that Jurassic would have sourced mainly from two directions, which are the southern Kuluke Mountain and the western Tashidian area respectively.
通过对该区重矿物、含砾粗碎屑组分、矿物成熟度及泥岩粘土成分等的分析,认为该区侏罗系存在两个主要的物源方向,一个来自南部库鲁克山,另一个来自西部的塔什店地区。
- 推荐网络例句
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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.
然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。
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Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.
镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。
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A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.
付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。