This map presents a draft version of potential mesophotic reef habitat based on analysis of bathymetry, water temperature, seafloor topography and proximity to surface coral reefs. The following parameters have been used.
Depth- SRTM bathymetric model 30-150 m.
Temperature- NOAA WOD minimum annual average temperature at 30m depth 22 degrees.
Seafloor topography, Raised banks and steep slopes based on analysis of SRTM bathymetric model.
Proximity to coral reefs, 100km buffer.
The model does not take into account seafloor composition (hard vs soft) or water clarity.
The Atlantis II Deep is in the central Red Sea. The deep attains a depth of over 2100 meters and is situated in the Red Sea rift, where the Arabian Peninsula and Africa are being split apart. Surveys in the 1960's confirmed the presence of hot, 60 °C, saline brines and associated metalliferous muds. The Atlantis II Deep has the biggest known metal-rich sea-floor deposit discovered to date, and it is by far the only example of a large-scale metalliferous-sediment type deposit. In the 1970s, a pre-pilot test mining study was conducted by a Saudi Arabian company (Preussag A. G.). Using what was described as “conventional floatation” means, they recovered 15,000 m3 of sea floor sediments and brines from four test sites in the Atlantis II basin. They also proceeded to concentrate the recovered material at sea. GRID-Arendal has been working on an environmental analysis of marine mineral deposits such as this as part of an assessment of Marine Minerals for the European Union.