Finally, the last process we're going to look at in our tour of the seafloor produces what might be the oddest of our ocean treasures: a potato-shaped clump made of minerals containing manganese, iron, and smaller amounts of other metals.

最后，我们在海底之旅中看到的最后一个过程产生了可能是我们海洋宝藏中最奇怪的东西：由含有锰、铁和少量其他金属的矿物质制成的土豆状团块。