论文部分内容阅读
１８７３年，英国“挑战者”号海洋考察船在进行环球考察时，在北大西洋加那利群岛的费罗岛西南约３００千米处，从海里打捞上来一些黑色的类似鹅卵石的团块。奇怪啊！鹅卵石大都分布在海滨和浅滩，几千米深的大洋底部哪里来的鹅卵石呢？这一现象引起了科学家们的浓厚兴趣。经
In 1873, the British “Challenger” marine expedition flew some black pebble-like clumps from the sea at a 300-km southwest of Ferre Island in the North Atlantic Canary Islands during a global mission. Strange! Pebbles are mostly distributed in the beach and shoal, a few kilometers deep where the bottom of the ocean pebbles it? This phenomenon has aroused great interest of scientists. through