Preservation of Earth-forming events in the tungsten isotopic composition of modern flood basalts

Isotopes isolated after impact Details about how Earth formed are gleaned from the daughter products of certain short-lived radioactive isotopes found in rocks. Rizo et al. describe subtle tungsten isotope variations in rocks from the very deep mantle in Baffin Island and the Ontong Java Plateau (se...

Full description

Bibliographic Details
Published in:Science
Main Authors: Rizo, Hanika, Walker, Richard J., Carlson, Richard W., Horan, Mary F., Mukhopadhyay, Sujoy, Manthos, Vicky, Francis, Don, Jackson, Matthew G.
Other Authors: NSF
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2016
Subjects:
Multidisciplinary
Baffin Island
Baffin
Online Access:http://dx.doi.org/10.1126/science.aad8563
https://www.science.org/doi/pdf/10.1126/science.aad8563
Description
Summary:Isotopes isolated after impact Details about how Earth formed are gleaned from the daughter products of certain short-lived radioactive isotopes found in rocks. Rizo et al. describe subtle tungsten isotope variations in rocks from the very deep mantle in Baffin Island and the Ontong Java Plateau (see the Perspective by Dahl). The results suggest that portions of Earth have remained unmixed since it formed. The unmixed deep mantle rocks also imply that Earth's core formed from several large impact events. Science , this issue p. 809 see also p. 768

Similar Items