If you could push Africa and south America together, they would meet at the Mid - Atlantic Ridge and close up the ocean between them. 如果你能把非洲和南美洲放在一起，他們一定會(huì )在中大西洋海嶺處吻合，并封死它們之間的海域。
Denmark is trying to prove that a detached part of the underwater Lomonosov ridge is an extension of Greenland, which is Danish territory. 丹麥正在試圖證明，從水下的羅蒙諾索夫海脊分出的一部分，是丹麥領(lǐng)土格陵蘭島的延伸。
Hence peridotite modes can be used to reflect efficiently mantle melting and melt extraction processes beneath ocean ridges only if the excess olivine is removed appropriately. 為此，只要把深海橄欖巖中過(guò)量的橄欖石剔除后，其實(shí)際礦物組分就能有效地反映洋脊下地幔熔融作用和熔融萃取過(guò)程。
