Abstract
Much recent work on the evolution of the Earth's continental crust has focussed on the ability of refractory minerals, such as zircon, to preserve information about crustal units long since lost from the rock record. Techniques used in
these studies include U-Pb ages of crystallisation, Hf model ages of source rock extraction from the mantle, and δ18O to track recycling of older crust. Such analyses provide insight into a range of questions, from identifying similar (possibly related) source rocks now separated by great distances to whether early crustal production episodes were regionally or globally distributed.
these studies include U-Pb ages of crystallisation, Hf model ages of source rock extraction from the mantle, and δ18O to track recycling of older crust. Such analyses provide insight into a range of questions, from identifying similar (possibly related) source rocks now separated by great distances to whether early crustal production episodes were regionally or globally distributed.
Original language | English |
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Pages (from-to) | A719 |
Journal | Geochimica et Cosmochimica Acta |
Volume | 73 |
Issue number | 13 Sup |
DOIs | |
Publication status | Published - Jun 2009 |