If that happens, slab pull could draw the oceanic crust under the continent, actually causing the Americas to move eastward toward Europe and the ocean floor to get smaller.
若果真如此,岩板拉力会将海洋地壳拖拽到大陆之下,实际上会使美洲大陆向东移动靠近欧洲,海床也会缩小。
Inthis article, the relationship of ODP with the research of oceanic crust is discussed.
本文论及了ODP与大洋地壳研究的关系。
Yellow Sea area, located between the margin of China's mainland and the oceanic crust of...
中国大陆边缘和西太平洋洋壳之间的黄海海域,属于过渡型地壳结构。
The earth′s crust of the South China Sea belongs to the transitional type between the oceanic crust and continental crust.
南海地壳属于大洋型地壳与大陆型地壳之间的过度类型。
The oceanic crust thus serves as a magnetic tape recording of the history of the geomagnetic field that can be dated independently;
这样海洋壳就扮演了磁带的角色,记录下可以鉴定时 间的地磁场的历史。
Owing to the difficulty of sampling beneath the deep oceans, the composition of the oceanic crust is not known with complete certainty.
由于在深海底下取样困难,海洋地壳的组成就不完全确知。
Tectonic environment of formation of enriched upper mantle is oceanic crust displacement from the oceanic mid-ridge to the orogenic zone.
造山带富集型上地幔形成的构造环境是:洋壳从扩张脊向两侧运移并最终拼入造山带这段时间内。
But geophysicists had thought that great subduction-zone earthquakes happened only where younger oceanic crust scrapes its way into the mantle.
但是在此之前,地球物理学者们认为,这种俯冲带大地震仅仅在年轻的海洋地壳挤入地幔处才可能发生。
The existence of recycled basaltic oceanic crust in the axial zone of mantle plume may be the key of the formation of giant V-Ti-magnetite deposits.
岩浆源区再循环玄武质洋壳的存在可能是该区超大型钒钛磁铁矿床形成的根本原因。
It is considered that the crust in the Okinawa Trough area belongs to the transition type, which is quite similar to the feature of the oceanic crust.
综合分析认为:冲绳海槽地壳属于过度型地壳,与大洋地壳的许多特点颇为相似。
Yellow Sea area, located between the margin of China's mainland and the oceanic crust of the Western Pacific ocean, has transitional crustal structure.
中国大陆边缘和西太平洋洋壳之间的黄海海域,属于过渡型地壳结构。
After calculating the the depth data of the basement of the oceanic crust, the author finds that the the SW Subbasin is older than the Central Subbasin.
用大洋基底的深度资料计算洋壳的年龄,发现西南次海盆洋壳的年龄也老于中央次海盆。
The evidences indicate that the magmas are formed by melting of pyrolite and eclogite (ancient basaltic oceanic crust) in the axial zone of mantle plume.
这说明它们是在地幔柱轴部,由地幔岩和榴辉岩(古玄武质洋壳)组成的源区产生的岩浆形成的。
By 2011 scientists aboard a Japanese deep-sea drilling ship called Chikyu hope to start drilling through a thin piece of oceanic crust to reach Earth's mantle.
2011年,科学家们将登上日本一艘名为“地球号”的深海钻井船,他们希望通过钻开一块薄的大洋地壳到达地幔。
The hypothesis was substantiated soon afterward by the discovery that periodic reversals of the Earth's magnetic field are recorded in the oceanic crust.
这个假定不久之后为发现所证实。 该发现表明地球磁场周期性的逆转被记录在海洋地壳中。
The marginal sea crust is another kind of oceanic crust, which was formed after the basalt magma engulfed and devoured the tattered continental margin crust.
边缘海洋壳是玄武岩浆侵入并吞蚀破碎的大陆边缘地壳后形成的不同于大洋壳的新型洋壳。
The interplay between the two leads to the formations of fluid outer core, basalt magmas, oceanic crust, and differential rotation between the inner core and mantle.
这两者之间的相互作用导致了流体外核的形成、玄武岩浆的产生、洋壳的形成、以及内核和地幔之间的差异旋转运动。
There are observation evidences for the E-W trend suture as following: (1) an ophiolitic melange belt resulted from subducted and overthrusted residual oceanic crust;
这条东西延伸的缝合带的证据是:1。残留洋壳经消减、冲断形成的蛇绿混杂带;
Since the beginning of the upper Triassic epoch, the Indian plate upthrusted to the north over the Tethys oceanic crust and led to the closure of the Tethys in Eocene epoch.
晚三迭世开始,印度板块在特提斯洋壳上向北仰冲,并导致特提斯在始新世的关闭。
The initial collision age is younger than that of the oceanic crust disappearing on the surface, and older than that of the formation of strong deformation and dynamic metamorphism.
碰撞的初始作用时间,应该在所测年龄最新的洋壳消失以后,在强构造变形与动力变质作用发生之前。
These two parts were partitioned by antique basement and Cenozoic oceanic crust. The suture belt of the Ancient South China Sea exists in an area from north Kalimantan to north Palawan.
南北两地中生界被古老基底和新生代洋壳隔开,加里曼丹岛北侧-北巴拉望一线为古南海消亡的缝合带。
Some Archean greenstone belts represent collages of allochthonous fragments, among which oceanic crust slices are identified with characteristics distinct from the Phanerozoic ophiolites.
部分太古宙绿岩带由不同的构造单元拼合而成,并发育不同于显生宙蛇绿岩的大洋壳岩石组合。
In subduction zones, where older and colder oceanic crust descends beneath another tectonic plate, Deep focus earthquakes may occur at much greater depths (up to seven hundred kilometers).
在隐没带,当更老的和更冷的海洋地壳下降到另一个构造板块下面时,深震源地震可能会发生在非常深的深度(达到700公里)。
In the recent decade, the deep seismic reflection profiling has been applied widely to studies on formation and evolution of oceanic lithosphere, crust structures and so on.
近十年来,深地震反射波勘探在海洋岩石圈的形成与演化、地壳结构研究中的应用越来越广泛。
The South China Sea is a huge marginal sea at East-Asian continental margin, and a tectonic region of the transitional crust type from continental to oceanic.
南海是东亚大陆边缘的巨型陆缘海,属大陆—大洋过渡型地壳构造区。
The mixed cement is prepared with oceanic polymetallic nodule and crust leaching slag 10-20 wt %, cement clinker 76-88 wt % and gypsum 1-4 wt %.
该混合水泥是由下述质量百分数的原料制成:大洋多金属结核-结壳浸出渣粉末10 ~ 20%、水泥熟料76 ~ 88%和石膏1 ~ 4%。
The present invention discloses application of oceanic polymetallic nodule and crust leaching slag in preparing mixed cement and as material for concrete.
本发明公开了一种用大洋多金属结核-结壳浸出渣制备的混合水泥及其制备方法和其作为混凝土掺合料的应用。
The crust can be divided into two types, oceanic and continental.
地壳可以被分成两类:海洋性的和大陆性的。
The crust can be divided into two types, oceanic and continental.
地壳可以被分成两类:海洋性的和大陆性的。
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