Neodymium-142 evidence for Hadean mafic crust
Abstract
Neodymium-142 data for rocks from the Nuvvuagittuq greenstone belt in northern Quebec, Canada, show that some rock types have lower 142 Nd/ 144 Nd ratios than the terrestrial standard (ϵ 142 Nd = –0.07 to –0.15). Within a mafic amphibolite unit, 142 Nd/ 144 Nd ratios correlate positively with Sm/Nd ratios and produce a 146 Sm- 142 Nd isochron with an age of \batchmode \documentclass[fleqn,10pt,legalpaper]{article} \usepackage{amssymb} \usepackage{amsfonts} \usepackage{amsmath} \pagestyle{empty} \begin{document} \(4280_{-81}^{+53}\) \end{document} million years. These rocks thus sample incompatible-element-enriched material formed shortly after Earth formation and may represent the oldest preserved crustal section on Earth.
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Hadean crust has not been found at the present-day Earth's surface.
“Hadean crust has not been found at the present-day Earth's surface, which may be due to its expected high density due to having an ultramafic or mafic composition, which may have caused it to be recycled back into the mantle (Kröner, 1985).”
From Secular change and the onset of plate tectonics on Earth (2020) · cites this paper as O'Neil et al., 2008
Cites
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Priscoan (4.00–4.03 Ga) orthogneisses from northwestern Canada
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Potentially biogenic carbon preserved in a 4.1 billion-year-old zircon
Bell, E. A., Boehnke, P., Harrison, T. M., & Mao, W. L. (2015) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1517557112 · Cited by 474 · see citing works
Secular change and the onset of plate tectonics on Earth
Palin, R. M., Santosh, M., Cao, W., Li, S.-S., Hernández-Uribe, D., & Parsons, A. (2020) · Earth-Science Reviews · doi:10.1016/j.earscirev.2020.103172 · Cited by 355 · see citing works
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Kamber, B. S. (2015) · Precambrian Research · doi:10.1016/j.precamres.2014.12.007 · Cited by 255 · see citing works
The Hadean-Archaean Environment
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Stagnant-lid tectonics in early Earth revealed by 142Nd variations in late Archean rocks
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Implications of the Nuvvuagittuq greenstone belt for the formation of Earth’s early crust
O'Neil, J., Francis, D., & Carlson, R. W. (2011) · Journal of Petrology · doi:10.1093/petrology/egr014 · Cited by 151 · see citing works
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Domagal-Goldman, S. D., Wright, K. E., Domagal-Goldman, S. D., Wright, K. E., Adamala, K., Arina de la Rubia, L., Bond, J., Dartnell, L. R., Goldman, A. D., Lynch, K., et al. (2016) · Astrobiology · doi:10.1089/ast.2015.1460 · Cited by 136 · see citing works
“, 2001) and the oldest whole rock known to exist on Earth (4.208 Ga; O’Neil et al., 2008).”
InfluentialBuilding Archean cratons from Hadean mafic crust
O’Neil, J., & Carlson, R. W. (2017) · Science · doi:10.1126/science.aah3823 · Cited by 115 · see citing works
Self-citationHarrison, T. M., Bell, E. A., & Boehnke, P. (2017) · Reviews in Mineralogy and Geochemistry · doi:10.2138/rmg.2017.83.11 · Cited by 97 · see citing works
Adam, J., Rushmer, T., O'Neil, J., & Francis, D. (2012) · Geology · doi:10.1130/g32623.1 · Cited by 96 · see citing works
Self-citationHarrison, T. M. (2020) · doi:10.1007/978-3-030-46687-9 · Cited by 53 · see citing works
Geologic and Geochemical Constraints on Earth's Early Atmosphere
Farquhar, J., Zerkle, A. L., & Bekker, A. (2014) · Treatise on Geochemistry · doi:10.1016/b978-0-08-095975-7.01304-8 · Cited by 53 · see citing works
- Authors
- O'Neil, J., Carlson, R. W., Francis, D., & Stevenson, R. K.
- Affiliations
- Earth and Planetary Sciences Department, McGill University, 3450 University Street, Montreal, Quebec, H3A 2A7, Canada.
- Université du Québec à Montréal (CA)
- Venue
- Science
- Published
- 2008-09-26
- Volume
- 321
- Issue
- 5897
- Pages
- 1828-1831
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2143905584
- Cited by
- 367
- References
- 2
- Citations by year
- 2026: 8 · 2025: 18 · 2024: 14 · 2023: 20 · 2022: 21 · 2021: 17 · 2020: 31 · 2019: 15 · 2018: 25 · 2017: 27 · 2016: 24 · 2015: 21 · 2014: 22 · 2013: 28 · 2012: 19
- FWCI
- 17.18
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
- Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
- Keywords
- Nd isotopes, Hadean crust, mafic crust, Sm-Nd isochron, Sm/Nd ratio, early Earth, crustal evolution, amphibolite
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