Evolution of the Australian-Antarctic discordance since Miocene time

• Published in: Journal of Geophysical Research: Solid Earth
• Main Authors: Marks, Karen M., Stock, Joann M., Quinn, Katherine J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Geophysical Union 1999
• Subjects: Antarctic; Australian-Antarctic Discordance; Indian; Pacific; Southeast Indian Ridge; Antarc*
• Online Access: https://authors.library.caltech.edu/44959/; https://authors.library.caltech.edu/44959/1/jgrb11713.pdf; https://resolver.caltech.edu/CaltechAUTHORS:20140415-124308456

In this study we chronicle the development of the Australian-Antarctic discordance (AAD), the crenelated portion of the Southeast Indian Ridge between ∼120° and 128°E, since anomaly 6y time (19 Ma). We reconstruct satellite-derived marine gravity fields and depth anomalies at selected times by first...