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全世界深度大于6000米的海域不多,只占海洋总面积的1.2%,在深海海域中,不少地方有海沟的存在,海沟是位于海洋中的沟槽,一般两壁较陡,形状狭长,水深大于5000米,在所有海沟中,位于中西太平洋的马里亚纳海沟最为有名,因为它是世界上最深的地方,平均宽度为70公里,大部分水深在8000米以上。超过万米深的马里亚纳海沟究竟是什么模样?人类于1960年1月首次看见它的真实模样,当时,瑞士著名深海探险家雅克·皮卡尔与美国海军中尉多恩·沃尔什驾驶的“的里雅斯特”深水探测器,在人类历史上首次下潜至马里亚纳海沟万米深处进行科学考察,在考察
There are only a few sea depths greater than 6,000 meters in the world, accounting for only 1.2% of the total area of the ocean. In deep-sea areas, there are trenches in many places. The trenches are trenches located in the ocean. The two walls are generally steeper and narrower in shape , With a depth of more than 5,000 meters. Of all the trenches, the Mariana Trench is the best known in the Western and Central Pacific Ocean because it is the deepest in the world with an average width of 70 kilometers and a depth of more than 8,000 meters. What exactly was the Mariana Trench more than 10,000 meters deep? The first time humans saw it in January 1960, when Jacques Picard, the famous Swiss deep-sea explorer, and Dorn Walsh, a lieutenant of the U.S. Navy, “Trieste ” deep-water detector, the first time in human history to dive to the Mariana Trench meters scientific investigation, in the study