Development of the Australian‐Antarctic depth anomaly

• Published in: Geochemistry, Geophysics, Geosystems
• Main Authors: Whittaker, J, Muller, RD, Gurnis, M
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Unoin 2010
• Subjects: Earth Sciences; Geology; Marine Geoscience; Antarctic; Australian-Antarctic Discordance; Pacific; Antarc*
• Online Access: https://doi.org/10.1029/2010GC003276; http://ecite.utas.edu.au/84437

The oceanic Australian‐Antarctic Discordance (AAD) contains two unusual features: (1) NS trendinganomalously deep bathymetries and (2) rough basement morphologies in young (<∼20 Ma) crust between120E and 128E. Models generally attribute AAD formation to underlying cold and/or depleted uppermantle...