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Coupled 142Nd-143Nd Isotopic Evidence for Hadean Mantle Dynamics

Date

Authors

Bennett, Victoria

Brandon, Alan D

Nutman, Allen P

Publisher

American Association for the Advancement of Science

Abstract

The oldest rocks - 3.85 billion years old - from southwest Greenland have coupled neodymium-142 excesses (from decay of now-extinct samarium-146; half-life, 103 million years) and neodymium-143 excesses (from decay of samarium-147; half-life, 106 billion

Keywords

Keywords: isotope; neodymium; neodymium 142; neodymium 143; samarium; unclassified drug; chondrite; Hadean; heterogeneity; mantle chemistry; neodymium; silicate; temporal variation; article; astronomy; Australia; dynamics; geochemistry; Greenland; half life time; m

URI

http://hdl.handle.net/1885/26972

Collections

ANU Research Publications

Source

Science

Type

Journal article

DOI

10.1126/science.1145928

Restricted until

2037-12-31

Downloads

File

Description

01_Bennett_Coupled_142Nd-143Nd_Isotopic_2007.pdf (177.84 KB)