Thermal history of UHT metamorphism in the Napier Complex, East Antarctica: insights from zircon, monazite and garnet ages
High-grade gneisses from Mt. Riiser-Larsen, East Antarctica, have been dated by whole-rock-mineral Sm-Nd and SHRIMP zircon and monazite U-Pb to help define the thermal history of ultrahigh temperature (UHT) metamorphism in the Napier Complex. Both the monazite and youngest zircon yield a range of apparent ages (∼2.51-2.47 Ga), consistent with crystallization during an extended period of metamorphism. Some zircon also preserves an isotopic record of earlier events, placing an upper limit of a...[Show more]
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|Source:||Journal of Geology|
|01_Suzuki_Thermal_history_of_UHT_2006.pdf||2.99 MB||Adobe PDF||Request a copy|
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