Determining the cooling history of in situ lower oceanic crust - Atlantis Bank, SW Indian Ridge
The cooling history and therefore thermal structure of oceanic lithosphere in slow-spreading environments is, to date, poorly constrained. Application of thermochronometric techniques to rocks from the very slow spreading SW Indian Ridge provide for the first time a direct measure of the age and thermal history of in situ lower oceanic crust. Crystallization of felsic veins (∼850°C) drilled in Hole 735B is estimated at 11.93 ± 0.14 Ma, based on U-Pb analyses of zircon by ion probe. This...[Show more]
|Collections||ANU Research Publications|
|Source:||Earth and Planetary Science Letters|
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