海洋地壳

西准噶尔西南地区古海洋地壳与板块构造

Ancient oceanic crust and plate tectonics in southwestern section of western Junggar

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 hypothesis was substantiated soon afterward by the discovery that periodic reversals of the Earths magnetic field are recorded in the oceanic crust .

所有的迹象只表明海洋地壳处都是玄武岩质的，组成也比较稳定。

All indications are that it is everywhere basaltic and relatively constant in composition .

结果表明，该区具有大陆地壳向海洋地壳过渡的边缘地区结构特征。

The result shows that in the region , the crustal structure is of the characteristic of the transitional zone of the continental margin .

由于在深海底下取样困难，海洋地壳的组成就不完全确知。

Owing to the difficulty of sampling beneath the deep oceans , the composition of the oceanic crust is not known with complete certainty .

热流探测技术的应用对研究海洋地壳活动规律、防灾减灾与天然气水合物新能源探测具有重要意义。

The technology of geothermal flow detection is of great importance for researches on marine crustal movement , disaster prevention and reduction and detection of gas hydrates .

20世纪60年代以来板块构造理论解释海洋地壳构造与形变取得极大成功并被全球地球科学家所接受。

Since the 1960s , the plate tectonics theory has been very successful in interpreting oceanic crustal structure and deformation , and accepted by the geoscientists around the world .

【参考译文】我们所知道的是，这段时间内在北美的西部边缘地带，海洋地壳，以及海洋板块，从北美板块下大面积地隆起。

What we know is that at the time of this grand uplift , on the western margin of North America , ocean crust , and Oceanic Plate , was subducting beneath the North American Plate .

【参考译文】然而，海洋地壳不断的潜入大陆边缘的下方，在北美西北部形成了瀑布以及南美洲形成了安第斯山脉。这儿的山脉却都在内陆，这可让人怎么解释。

Where Oceanic crust dives beneath the continental margin in the northwest , the Cascades or in South America the Andes Mountains , but these mountains here , in the middle of the continent , are much harder to explain .

在这些海洋下方地壳的断层中，

And deep beneath those oceans , at cracks in the Earth 's crust ,

中国南海的中央、日本海中央、菲律宾海表现为海洋性地壳。

The central South China Sea , the Japan Sea , and Philippine Sea appear as oceanic crust .

汞是一种有毒化学物质，其中在海洋和地壳最为常见，但也同样来自于人为因素：如杀虫剂、燃烧垃圾和释放化石燃料。

Mercury is a toxic chemical , which occurs naturally in oceans and the Earth 's crust , but also comes from man-made sources , such as pesticides , burning garbage , and the releasing of fossil fuels .