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层火山
相关语句
  layered volcano
     Moreover, 8 types of volcanic lithofacies such as fallout facies, effusion facies, base surges facies, pyroclastics flow facies, lahar facies, eruption\|sedimentary facies, sub\|volcanic rock facis and sub\|explosive breccia facies, and three kinds of volcanic apparatus such as layered volcano, micro\|shield volcano and cone Volcano can be identified in the eruption zone.
     火山喷发区内可识别出 8种类型的火山岩相 (空落相、溢流相、基底涌流相、火山碎屑流相、火山泥石流相、火山沉积相、次火山相、隐爆角砾岩相 )和 3种类型的火山机构 (层火山、微型盾火山和渣锥火山 )。
短句来源
  “层火山”译为未确定词的双语例句
     A volcanic event layer in the Middle Taiyuan Formation of Late Palaeozoic is widely distributed in the central Shanxi and western Hebei.
     在晋中冀西晚古生代太原组中段普遍发育有一层火山事件层。
短句来源
     Results of research on the petrological,petrochemical,rare elements′ and trace elements′ characteristics of the volcanic event layers in Mid Taiyuan Formation from middle region of Shanxi and western region of Hebei are presented.
     在岩矿鉴定的基础上,对晋中冀西太原组中段普遍发育的一层火山事件层做了岩石化学、稀土元素和微量元素分析。
短句来源
     According to systematic petro-mineral appraisal, differential thermal. X-ray differentiation and electron-microscope tests and quantitative analyses of trace rare elements from the volcanic event deposits of the Upper Carboniferous? Lower Permian series in Nanpiao, Liaoning, and Daqingshan, Inner Mongolia, deposit sequences of 12 volcanic events have been identified, including the 34~39th volcanic beds from bottom to top.
     本文对辽宁南票及内蒙古大青山区上石炭—下二叠统地层中火山事件沉积进行了系统的岩矿鉴定、差热、X光、电镜测试及微量稀土元素定量分析,两剖面自下而上共划分出12期火山事件沉积序列,包括了34~39层火山事件沉积层。
短句来源
  相似匹配句对
     VOLCANOES
     火山(英文)
短句来源
     Volcanic Disasters
     火山灾害
短句来源
     Construction of Fenghuoshan Tunnel with thick underground ice
     风火山隧道厚地下冰地段施工技术
短句来源
     The type of the genesis is stratabound volcano sedimentary metamorphic hydrothermal deposit.
     矿床成因类型为火山 -沉积 -变质热液矿床。
短句来源
     (3) syllablic tier;
     (3)音节;
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A flysch belt of E-W trend sedimented from late Paleozoic to early Mesozoic, outcrops in the Qinling Mountains. The following evidences support that the flysch deposited on active margin north of the Yangtze Plate; 1 ) the flysch belt is now located south to the suture zone of Yangtze and North China Plates; 2 ) the strata conformably underlying the flysch are all characterized by lithofacies and fossils of the Yangtze type; 3 ) paleocurrent data ( from N to S ) show that there was an ancient source area for...

A flysch belt of E-W trend sedimented from late Paleozoic to early Mesozoic, outcrops in the Qinling Mountains. The following evidences support that the flysch deposited on active margin north of the Yangtze Plate; 1 ) the flysch belt is now located south to the suture zone of Yangtze and North China Plates; 2 ) the strata conformably underlying the flysch are all characterized by lithofacies and fossils of the Yangtze type; 3 ) paleocurrent data ( from N to S ) show that there was an ancient source area for detritus in the north of the flysch belt, which is represented now by remnent blocks of mobilized basement; 4) pyroclastics in the flysch mean that the source area might be a series of islands related to southward plate subduc-tion. It should be noted that north inclined structures now in Qinling resulted from southward overthrust. A reasonable explanation for the phenomenon is plate flip: before T2, oceanic crust of the paleotethys north to the Yangtze Plate subducted southward, resulting in an active continental margin; after T2, while the paleotethys was entirely consumed, the North China Plate behind the oceanic crust overthrust onto the Yangtze Plate, resulting in the building up of nowadays Qinling.

秦岭发育一条近东西走向的复理石带,其沉积时限约为古生代末至中生代初。下述证据表明,这些复理石是扬子板块北侧活动大陆边缘的产物:(1)该复理石带位于华北板块与扬子板块的缝合线以南;(2)岩相及古生物特征表明,与复理石整合接触的下伏地层为扬子型;(3)由北向南的古水流资料表明,复理石带北侧曾存在提供碎屑的物源区,那里现存的一系列活化基底块体可能即为古老岛陆的残余;(4)复理石中夹有若干层火山碎屑岩,暗示了那些岛陆与向南的板块俯冲有关。需要强调的是,秦岭现今构造倒向是向南逆冲及推覆的结果。这一现象可用板块俯冲方向倒转(Plate flip)解释,即,中三叠世以前,扬子板块以北的古特提洋壳向南俯冲,形成活动大陆边缘,中三叠世以后,洋壳消减殆尽,大洋彼岸的华北板块与扬子板块对撞,并逆冲至后者之上,形成秦岭。

On the basis of field observation and the information of the tectonic plat analysis, the authors demonstrate the features, geneses, and depositional types of the volcanic event de- posits of Taiyuan Formation in Zhungeer coal field.A detailed discussion for the features, distribution and the geneses of pyroclastic rock type A located between limestones No .4 and No.5 in Taiyuan formation has been made. The concept and the forming model of the pyroclastic gravity flow under the water are also put forward.

在野外观察的基础上,应用薄片分析及沉积环境分析的资料,对内蒙准格尔煤田太原组含煤建造中火山事件沉积的类型、特征及成因进行了初步的论证与探讨。重点分析了赋存于太原组第四——第五灰岩层位间的A层火山事件沉积,提出了火山碎屑水下重力流事件沉积的概念,并建立了形成模式。

ENSO event occurring in winter—spring greatly influence the following summer weather ofChina. When the Southern Oscillation (SO)in winter — spring is weaker and accompanied withENSO,it will lead the west Pacific high (WPH) in the following summer to strengthen and ex-tend westward through the action of enhanced Hadley cell located in mid—equational Pacific.And the location of the ridge line of WPH in mid summer (July—August) and the monsoon rainbelt in eastern China in the northern side of WPH are controlled...

ENSO event occurring in winter—spring greatly influence the following summer weather ofChina. When the Southern Oscillation (SO)in winter — spring is weaker and accompanied withENSO,it will lead the west Pacific high (WPH) in the following summer to strengthen and ex-tend westward through the action of enhanced Hadley cell located in mid—equational Pacific.And the location of the ridge line of WPH in mid summer (July—August) and the monsoon rainbelt in eastern China in the northern side of WPH are controlled by two factors——both the pre-ceding SOI in late spring and the direct solar radiation (S) of clear sky indicating the stratosphericvolcanic dust content. Owing to the significant annual variation of S,the difference of location ofthe monsoon rain belt in eastern China in mid summer will be considerable during the ENSO peri-ods. Based on this analysis,the seasonal forecast for the summer rainy tendency in the middle—lower valley of Changjiang river and Huaihe river in 1987 (ENSO year) has been made.

ENSO现象对夏季我国天气有重要影响。当南方涛动(SO)偏弱并出现ENSO现象时,通过增强的Hadley环流的作用,它一般会使夏季西太平洋副高偏强西伸;同时,副高脊线和北侧的季风雨带位置除受到南方涛动指数(SOI)影响外,还受到平流层火山云影响即以晴空太阳直接辐射量(S)为表征的作用。由于S有显著年际振荡,我国盛夏季风雨带的位置可以有相当的差异。根据分析,作了1983、1987年夏季多雨的预报。

 
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