May pre-date the more modern Indo-Australian Plate. Some may consider this the modern plate. Before 1993, also search Indian Plate and Australia. Indexed with geographic area and/or age as applicable. Added to Thesaurus in 1993.
An anomalously deep and rough segment of the Southeast Indian Ridge, 120-128#DGE. Before 1998, also search (Antarctic Plate or Australian Plate) AND Southeast Indian Ridge.