Red sea: detailed survey of hot-brine areas.

A bathymetric and geophysical survey of the Red Sea rift valley between 21 degrees 10' and 21 degrees 30'N has defined three separate pools of hot brines. The brines and their associated heavy metals are believed to be periodically discharged from the eastern side of the largest deep, Atlantis II. Cores taken from the flanks of the deeps show repetitive cycles of sedimentation of hydrous amorphous iron oxides which fill most of Atlantis II Deep.