Draft:Princess Elizabeth Trough

The Princess Elizabeth Trough (PET) is a narrow zone of deep water separating the southern end of the Kerguelen Plateau from Antarctica. Geophysical data points to the Princess Elizabeth Trough as the sector in which the separation of India and Antarctica began.

It is 350 kilometers wide with a depth of over 3,500 meters. It is underlain by a thin oceanic crust layer. The PET is one of the only channels deep enough to connect the Australian-Antarctic Basin in the east to the Weddell-Enderby Basin in the west, providing a route of exchange for Antarctic bottom water.