Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comment
. 2009 Jul 17;325(5938):267; author reply 267.
doi: 10.1126/science.1169604.

Comment on "Neodymium-142 evidence for Hadean mafic crust"

Rasmus Andreasen  1 , Mukul Sharma
Affiliations
Comment

Comment on "Neodymium-142 evidence for Hadean mafic crust"

Rasmus Andreasen et al. Science. .

Abstract

O'Neil et al. (Reports, 26 September 2008, p. 1828) presented neodymium-142 data for rocks from northern Quebec, Canada, and suggested that these rocks may represent the oldest preserved crustal section on Earth. We argue that the age of the rocks is based on a spurious correlation between rocks that are probably not co-genetic and negative (142)Nd anomalies that may be the result of an analytical artifact.

PubMed Disclaimer

Comment on