Australian-Antarctic discordance  search
BTIndian Ocean
 .Mid-Indian Ridge
 ..Southeast Indian Ridge
 ...Australian-Antarctic discordance
UFAustralia-Antarctica discordance
RTplate tectonics
 plates
 Antarctic Plate
 mid-ocean ridges
 Australian Plate
 Indo-Australian Plate
SNAn 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.