upper cretaceous 中文意思是什麼

upper cretaceous 解釋
晚白堊世
  • upper : adj 1 （更）上面的，上方的，上部的；較高的；上級的；（議會）上院的；（衣服）穿在外面的。2 上流的...
  • cretaceous : adj. 白堊（質）的。 cretaceous period [system] 【地質學；地理學】白堊紀[系]。n. 〈C-〉 【地質學；地理學】白堊紀[系]。
  1. Upper cretaceous rudist bioherms in southwestern tarim

    塔里木盆地西南地區上白堊統生物丘
  2. Kongxi buried hill shows following features in the seismic profiles : the structures are asymmetric. there is flexural syncline on the east side and a monocline on the west side. asymmetric repetition of stratigraphic units is present in the drill wells and the dips of beds and faults are gentle. the permo - carboniferous system of both sides almost lie in the same slope and the events of cambrian or upper proterozoic are continuous from east to west. the phenomenas suggest that kongxi buried hill could be a thrust belt been traced which consists of reverse faults. the imbricate faults mainly effect pre - jurassic strata. there are obvious angular unconformity between jurassic - cretaceous system and paleozoic involved deformation of thrust. the thrust front in some place has cut off the beds of jurassic - cretaceous system. the structural style of the thrust structure changes along the strike of the kongxi buried hill

    地震和鉆井資料揭露的孔西構造帶前第三系潛山的地質特徵可以歸納為：構造帶總體上不對稱構造帶內部有地層重復現象石炭二疊系地層的位置明顯高於兩側的同一地層的高度。用由34條向東傾斜的逆沖斷層組成的疊瓦扇構造模式能夠比較合理地解釋上述地質特徵。該帶向東傾斜的逆沖疊瓦狀斷層組主要影響前侏羅系地層，侏羅白堊系與捲入逆沖構造變形的古生界地層之間有明顯的角度不整合。
  3. The study results can be summerized as following aspects : ( 1 ) the basic settling curve of this basin was broken - line shape of seven sections in which upper jurassic, lower cretaceous, eocene, oligocene and neogene corresponded with the decline ones representing five episodic clear subsidences of this basin, late cretaceous to paleocene and early miocene corresponded with the rising ones reflecting the uplift and denudation of this basin. ( 2 ) the subsidence of this basin migrated from the east to the west, from mesozoic to cenozoic

    研究表明： （ 1 ）北黃海盆地的基本沉降曲線型式為7段折線狀，其中晚侏羅世、早白堊世、始新世、漸新世、新近紀為曲線下降段，代表盆地5幕較明顯的沉降；晚白堊世古新世以及中新世早期為曲線上升段，反映盆地的抬升剝蝕。
  4. The upper cretaceous jingzhushan formation in the biru basin, xizang consists of a succession of coarse - grained elastic rocks in the alluvial fan - fan delta depositional system, intercalated with intermediate - acidic volcanic rocks including dacite, andesite, quartz trachyandesite and rhyolite

    摘要上白堊統競柱山組為一套沖積扇扇三角洲沉積體系的粗碎屑巖，間夾由英安巖、安山巖、石英粗安巖和流紋巖組成的中酸性火山巖。
  5. The upper cretaceous and paleogene are of continental sediments in henan province, and the boundary between them considered to be unconformable or disconformable because of the very difference in sedimentation and biological assemblages

    摘要河南省上白堊統與古近系均為陸相沉積，在全省范圍內，兩者間呈假整合或不整合接觸，在沉積特徵上顯示出較大的差異，在古生物群的演化方面，也各自具有不同的特色。
  6. The analyses of the sedimentary facies, rock geochemistry and reformation after the sedimentation from the upper cretaceous quantou formation to nenjiang formation indicate that the beneficial sand - bodies of the uranium deposit are mainly quantou formation ' s braided channel and qingshankou formation ' s delta sandstone types

    摘要從上白堊統泉頭組嫩江組沉積相展布、巖石地球化學及沉積期后改造作用分析入手，闡明了研究區有利鈾成礦砂體主要為泉頭組的辮狀河與青山口組的三角洲砂體。
  7. Subdivision and correlation of the upper beds of the cretaceous system in zhejiang

    浙江白堊繫上部地層的劃分與對比
  8. At the late stage of upper jurassic ( 135ma ), the provenance areas underwent intense and sustained uplift and denudation. in the period of lower cretaceous, the tectonic setting of the provenance areas turned into strike - slip

    侏羅紀末（ 135ma ）到早白堊世源區產生劇烈的持續上升和剝蝕，早白堊世晚期，源區的構造轉換為拉張。
  9. The types and characteristics of the sedimentary facies developed in pukou formation of upper cretaceous in huaiyin sag of yanfu depression are analyzed

    摘要對鹽阜坳陷淮陰凹陷上白堊統浦口組發育的沉積相類型及其特徵進行了分析。
  10. Based on the analysis of distribution of upper jurassic and lower cretaceous strata and basin - controlled faults, tanlu fault zone strike slip to develop the three nw - trending grabens from north to south western to tanlu fault zone in late jurassic and early cretaceous, which are bohai graben, jiyang graben and luxinan graben. based on the analysis of regional geology, the basic tectonic pattern of bohai basin is the cenozoic basin pattern since early paleogene. the outline, structure, deposit characteristics and heat flow distributions show that the basin is pull - apart basin in cenozoic time. the tectonic evolution pattern can be reconstructed based on the analysis of cenozoic strata, deposit thickness, location and activity of basin - controlled faults in the different depresses in bohai basin. the characteristics of structure and depositment in this mesozoic and cenozoic time show that bohai basin is a mesozoic and cenozoic composite basin

    根據中生界上侏羅統和下白堊統地層和控盆斷裂分佈分析，中生代晚期晚侏羅早白堊世郯廬斷裂帶的左旋走滑平移導致郯廬斷裂帶以西自北向南發育了3個北西向斷塹系，即北部的渤海斷塹系中部的濟陽斷塹系和南部的魯西南斷塹系。從區域資料綜合分析，渤海灣盆地的基本格局是早第三紀以來的新生代盆地格局。渤海灣盆地的形態構造和沉積特徵及熱流值分佈表明該盆地在新生代為拉分盆地。
  11. It was noted that the upper mesozoic strata ( mainly cretaceous ) as revealed by drill or dredge from the eastern nansha waters might extend into the hinterland of the nansha waters

    南海裂谷期間形成的下第三系具有明顯的裂谷充填特徵，其構成生油巖主體。
  12. In the upper cretaceous

    一直可以追溯到白堊紀早期
  13. Characteristics of sedimentary facies and sequence boundary in upper cretaceous qingshankou - yaojia formation of northern songliao basin

    姚家組沉積相及層序地層界面特徵
  14. Abstract : through statistical analysis of the rock mechanic properties of upper jurassic and cretaceous red mudstones, siltstones and sandstones in the middle sichuan red basin, the range of their compressive strength, the features of the shearing strength and of the deformation curves are proposed in this paper

    文摘:對川中白堊系、侏羅系的泥巖、砂巖、泥質粉砂巖的抗壓強度進行統計分析，得出紅層巖石作為地基時抗壓強度的范圍值供設計參考，對泥巖、砂巖的其他力學性質進行了評價。
  15. Continent block colliding during late - permian to middle - triassic ; lower part delamination and upper part rifting of lithosphere during late - triassic ; delayed compression and uplift during early - jurassic ; crust extension from middle - jurassic to early - cretaceous ; large - scale strike sliping from late - cretacoues to present. ( 6 ) roughly expounding the deposits distribution feature in south part of sanjiang orogenic belts, especially in detail to set forth the characters of southern nanchangjiang cu, pb, zn, ag, sn, fe metallogenic belt

    初步闡明了三江造山帶南段礦床的時空分佈特徵，特別是較系統闡述了與巖石圈拆沉作用相關的南瀾滄江cu 、 pb 、 zn 、 ag 、 sn 、 fe成礦帶的特點，指出含鉀較高的火山巖可作為尋找拆沉環境中銅多金屬礦的有利地區，而火山巖中孔隙度較高的層位、層面和破碎帶可作為優先找礦部位。
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