Making a Crust

@article{Michael2009MakingAC,
  title={Making a Crust},
  author={Peter J Michael and Michael J. Cheadle},
  journal={Science},
  year={2009},
  volume={323},
  pages={1017 - 1018}
}
Dating zircons from the mid-Atlantic ridge provides clues about how the oceanic crust is formed. 
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Nineteen uranium-lead zircon ages of lower crustal gabbros from Atlantis Bank, Southwest Indian Ridge, constrain the growth and construction of oceanic crust at this slow-spreading midocean ridge.
Do the trace element compositions of detrital zircons require Hadean continental crust
The trace element compositions of Hadean zircons have been used in two ways to argue for the existence of Hadean continental crust. One argument is based on low crystallization temperatures of Hadean
Trace element chemistry of zircons from oceanic crust: A method for distinguishing detrital zircon provenance
We present newly acquired trace element compositions for more than 300 zircon grains in 36 gabbros formed at the slow-spreading Mid-Atlantic and Southwest Indian Ridges. Rare earth element patterns
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Two approaches to determining the high-temperature (� 10008 Ct o � 6008C) cooling rate of the lower oceanic crust and upper mantle are presented and critically evaluated.The first is based on the
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The titanium concentrations of 484 zircons with U-Pb ages of ∼1 Ma to 4.4 Ga were measured by ion microprobe. Samples come from 45 different igneous rocks (365 zircons), as well as zircon megacrysts
Corrugated slip surfaces formed at ridge–transform intersections on the Mid-Atlantic Ridge
The strips of ocean crust formed at the inside corners of both transform and non-transform offsets on the Mid-Atlantic Ridge are punctuated by topographic highs—the 'inside-corner highs'1–3—where
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The models recognize that ZrSiO4, ZrTiO4,  and TiSiO4, but not ZrO2 or TiO2, are independently variable phase components in zircon. Accordingly, the equilibrium controlling the Zr content of rutile
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