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- initial oceanic crust 初始洋壳
- Oceanic crust can be tilted, which can be mistaken for magnetic inclination. 海洋地壳可能是倾斜的,造成测量磁倾角时的误差。
- The sinking of oceanic crust at subduction zones carries water and carbon dioxide back into the mantle. 在俯冲区洋壳下沉,又把水和二氧化碳带回地下。
- Jurassic and Cretaceous, the marginal ocean basin was in the stage of ocean crust evolution and had a setting similar to mid-ocean ridge. 侏罗-白垩纪为洋盆洋壳演化期,处于类似洋中脊的构造环境。
- 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。
- 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。
- Degassing impulses give rise to the strengthening of oceanic crust spreading which is correlated with phases of diastrophism creating folded orogenic belts. 排氢脉冲导致洋壳扩张的增强,而此则与创造出造山带的地壳变动幕相关。
- Within the Nanpanjiang Sea the Tianlin Basin located on its northern part, the Babu Basin with oceanic crust on its central part and the Qinfang Basin on its southern part. 南盘江海内部有北部的田林海盆,中部的八布洋盆和南部的钦防海盆。
- Further sea-floor spreading led to the occurrence of oceanic crust in Babu Basin and the Nanpanjiang Sea exceeded beyond 20 latitudes from north to south in Early Carboniferous. 进一步的海底扩张导致早石炭世时八布海盆出现洋壳,南盘江海成为南北超过20个纬度的小洋盆。
- On the other hand, because this portion of oceanic crust is located at the northernmost of the South China Sea, it also could be related to the formation of the South China Sea. 然而,因为这地区又正好属于南海的最东北边,其性质可能也与南海的海洋地壳属性很接近。
- The oceanic crust off southwestern Taiwan is located near the junction area between the Chinese continental margin and the northernmost South China Sea (Figure 1). 台湾西南外海的海洋地壳位于南海与大陆边缘盆地的交接处。
- The Mashan Group is the basement of Jiamusi Massif, whereas the Heilongjiang Group represents an accretionary-collision complex containing remnants of oceanic crust. 穆棱地区的“麻山群”为佳木斯地块南缘的陆壳基底,其南侧的“黑龙江群”为包括洋壳残片在内的增生-碰撞杂岩。
- Sea salt not only dissolves from rocks, it also reacts with the rocks of the ocean crust and volcanic lava.The reactions take some of the salts in seawater away from the sea. 岩石溶解产生海盐,而同时,海盐又与大洋地壳中的岩石和火山熔岩进行化学反应,从而把一部分盐分从海水中带走。
- In 1991 David Sparks and Mark Parmentier, both then at Brown University, proposed an answer rooted in the variable temperature of ocean crust and the uppermost mantle. 1991年,美国布朗大学的斯巴克斯(DavidSparks)与巴曼提耶(MarkParmentier)提出解答,关键就在海洋地壳与地函顶层的温度变化。
- The REE contents of rockbodies in geosynclines are relatively low because of their origination from the high proportion remelting of subducted ocean crust. 地槽区岩体的稀土元素含量及多种参数相对较低,主要与其起源于俯冲洋壳较大比例重熔有关。
- Shaerbuer opholites represent fragments of ocean crust which are ancient middle Asia ocean between Siberian ancient plate and Tarin plate which was parts of the Kazakhstan Plate. 沙尔布尔蛇绿岩,为西伯利亚古板块与塔里木古板块之间的广襄古大洋一古中亚大洋的残片,即哈萨克斯坦板块的组成部分。
- The oceanic crust lies beneath the ocean floor and has a thickness of five to twelve kilometers. On the upper surface, there is a thin layer of unconsolidated sediment that rests on the basement layer composed of basalt. 洋壳位于海洋底板之下,其厚度在5至12公里之间,其表面为薄薄的一层未固结的沉积物,沉积物覆盖于由玄武岩组成的基底岩层之上。
- The formation of the amphibolite and amphibolitization gabbro occurred in the Kuerti ophiolite are related to the shere zone slightly oblique to the third layer gabbro in the low oceanic crust. 库尔提蛇绿岩内角闪岩和角闪岩化辉长岩的形成与洋壳下部第三层辉长岩的低角度剪切过程密切相关。
- The author deems that the geotectonic background of synvolcanic stage was the continental crust upliftsing and following riftings,and was not oceanic crust and its subdution-collision. 对同火山作用期的构造背景进行了重点探讨,认为它是大陆型地壳隆升及其后的裂陷环境,而不是大洋型地壳及其俯冲-碰撞环境。
- 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,当更古老更冰冷的洋底壳下降到另一版块之下时,深层震源地震可能会发生在很深的地方(达到为七百千米)。