We now know that the hot-springs that sustain these "vent" ecosystems occur in every oceanbasin and are host to hundreds of previously unknown animal species.
The amount of reserves in the pre-salt (Santos Basin, Atlantic Ocean) are impressive, but the matter is when and how these new oil prospects will materialize.
Chevron miscalculated its drilling of its Frade field last November, an oil well just under the ocean floor in the Santos Basin in Brazil, about 70 kilometers off coastal Rio de Janeiro.
Chemical effects related to acidification have also been encountered in surface waters of the Bering Strait and the Canada Basin of the central Arctic Ocean.
It marks what some people consider the northern border of the Great Basin and sits upon the farthest shore of what author Stephen Trimble calls the Sagebrush Ocean.