An andesitic source for Jack Hills zircon supports onset of plate tectonics in the Hadean
oleh: Simon Turner, Simon Wilde, Gerhard Wörner, Bruce Schaefer, Yi-Jen Lai
| Format: | Article |
|---|---|
| Diterbitkan: | Nature Portfolio 2020-03-01 |
Deskripsi
The composition and tectonic affiliation of Earth's earliest crust remains disputed. Here, the authors find that Archean Jack Hills zircons crystallized from melts with compositions similar to andesite formed in modern subduction settings, which they suggest is consistent with an early onset of modern-style plate tectonics on Earth.