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.
Corais de distintas formas de carbonato de calcio viven no basalto deste enorme monte submarino, e o material escuro que se ve son corais fosilizados, dos que imos falar un pouco máis ao retrocedermos no tempo.