The Hadal zone represents one of the last great frontiers in marine science, accounting for 45% of the total ocean depth range.
Providing an overview of the geology involved in trench formation, the hydrography and food supply, this.
Despite very little research effort since the 1950s, the last ten years has seen a renaissance in Hadal exploration, almost certainly as a result of technological advances that have made this otherwise largely inaccessible frontier, a viable subject for research.
The Hadal zone represents one of the last great frontiers in marine science, accounting for 45% of the total ocean depth range