For example, the island of Cyprus has 30 of these massive sulfide deposits that were once under the sea, and that's where the Ancient Romans got their copper.

例如，塞浦路斯岛有 30 个曾经位于海底的块状硫化物矿床，古罗马人就是在那里获得铜的。

Sometimes the chimneys are called white or black smokers because the erupting fluids full of minerals look like smoke rising out of the towers, but the whole accumulations are known more formally as massive sulfide deposits.

有时烟囱被称为海底白烟囱或黑烟囱，因为充满矿物质的喷发流体看起来像从塔中升起的烟雾，但整个堆积物更正式的名字是块状硫化物矿床。

These can only form under the ocean, but these days, when we mine for zinc, copper, or silver on land, we're often mining massive sulfide deposits that originally formed on the ocean floor millions of years ago.

它们只能在海底形成，但如今，当我们在陆地上开采锌、铜或银时，我们开采的经常是数百万年前最初在海底形成的块状硫化物矿床。