Coupled 142Nd-143Nd Isotopic Evidence for Hadean Mantle Dynamics
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
Published in: | Science |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
American Association for the Advancement of Science
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Subjects: | |
Online Access: | http://hdl.handle.net/1885/26972 https://doi.org/10.1126/science.1145928 https://openresearch-repository.anu.edu.au/bitstream/1885/26972/5/V.Bennett_et_al_Science_2007.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/26972/7/01_Bennett_Coupled_142Nd-143Nd_Isotopic_2007.pdf.jpg |
Summary: | 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 |
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