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Provenance of Proterozoic garnet-biotite gneiss recovered from Elan Bank, Kerguelen Plateau, southern Indian Ocean
Citation
Nicolaysen, K and Bowring, S and Frey, F and Weis, D and Ingle, S and Pringle, MS and Coffin, MF, Provenance of Proterozoic garnet-biotite gneiss recovered from Elan Bank, Kerguelen Plateau, southern Indian Ocean, Geology (Boulder), 29, (3) pp. 235-238. ISSN 0091-7613 (2001) [Refereed Article]
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Copyright Statement
Copyright © 2001 Geological Society of America
Official URL: http://dx.doi.org/10.1130/0091-7613(2001)029<0235:...
DOI: doi:10.1130/0091-7613(2001)029<0235:POPGBG>2.0.CO;2
Abstract
At Elan Bank of the Kerguelen Plateau in the southeast Indian Ocean, Leg 183 of the Ocean Drilling Program recovered clasts of garnet-biotite gneiss in a fluvial conglomerate intercalated with basalt flows. U-Pb and Pb-Pb dates of zircons and monazites in these clasts and an overlying sandstone range from 534 to 2547 Ma, which is much older than the surrounding Indian Ocean seafloor. These dates show that old continental crust resides in the shallow crust of the oceanic Kerguelen Plateau and that the breakup of Gondwana dispersed continental fragments into the nascent Indian Ocean lithosphere.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Kerguelen Plateau geochronology continental crust Proterozoic Indian Ocean. |
| Research Division: | Earth Sciences |
| Research Group: | Geology |
| Research Field: | Marine Geoscience |
| Objective Division: | Expanding Knowledge |
| Objective Group: | Expanding Knowledge |
| Objective Field: | Expanding Knowledge in the Earth Sciences |
| UTAS Author: | Coffin, MF (Professor Mike Coffin) |
| ID Code: | 73817 |
| Year Published: | 2001 |
| Web of Science® Times Cited: | 42 |
| Deposited By: | Research Division |
| Deposited On: | 2011-10-26 |
| Last Modified: | 2011-11-09 |
| Downloads: | 5 View Download Statistics |
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