Sr-Nd-Pb-Hf isotope results from ODP Leg 187: evidence for mantle dynamics of the Australian-Antarctic discordance and origin of the Indian MORB Source

• Published in: Geochemistry, Geophysics, Geosystems
• Main Authors: Kempton, Pamela D., Pearce, Julian A., Barry, Tiffany Louise, Fitton, J. Godfrey, Langmuir, Charles, Christie, David M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: AGU 2002
• Subjects: QE Geology; Antarctic; Australian-Antarctic Discordance; Indian; Pacific; Antarc*; Antarctica
• Online Access: https://orca.cardiff.ac.uk/id/eprint/8448/; https://doi.org/10.1029/2002gc000320; https://orca.cardiff.ac.uk/id/eprint/8448/1/Kempton%202002.pdf

New high precision PIMMS Hf and Pb isotope data for 14–28 Ma basalts recovered during ODP Leg 187 are compared with zero-age dredge samples from the Australian-Antarctic Discordance (AAD). These new data show that combined Nd-Hf isotope systematics can be used as an effective discriminant between In...