There are corals made of different forms of calcium carbonate growing off the basalt of this massive undersea mountain, and the dark sort of stuff, those are fossilized corals, and we're going to talk a little more about those as we travel back in time.
Hay corales con diferentes formas de carbonato de calcio que crecen fuera del basalto de esta enorme montaña submarina, y esas cosas oscuras son corales fosilizados, y hablaré un poco más sobre ellos al viajar atrás en el tiempo.