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Phase two was an underwater sea floor search using sonar equipment mounted on underwater vehicles to collect high-quality sonar images.

The search was carried out in a remote part of the Indian Ocean around 2000km (1242miles) from Perth. Information gathered during painstaking surveys of some 120,000 sq km (46,000 sq miles) of the remote waters west of Australia should provide fishermen, oceanographers and geologists insight into the region in unprecedented detail The data indicated the aircraft crashed somewhere along a narrow arc (pictured) in the Indian Ocean.

The Gulden Draak Seamount and the Batavai Seamount are found in this search area.

The sea floor of the Diamantina Escarpment is the youngest geologically and was formed by 'sea floor spreading'.

The Gulden Draak Seamount is found in the Broken Ridge search area.



High-priced fish such as tuna, toothfish, orange roughy, alfonsino and trevally are known to gather near the seamounts, where plankton swirl in the currents in the inhospitable waters. The first was the bathymetric survey which involved making a detailed map of the sea floor topography.It features 24 hours of battery life and claims to be a 'mini-disco on the move'.


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