Cited by 243Geological and Geochemical AnalysisGeochemistry and Elemental AnalysisAstro and Planetary Science

Komatiites, kimberlites, and boninites

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Arndt, Nicholas·2003·Journal of Geophysical Research: Solid Earth

Abstract

When the mantle melts, it produces ultramafic magma if the site of melting is unusually deep, the degree of melting is unusually high, or the source is refractory. For such melting to happen, the source must be unusually hot or very rich in volatiles. Differing conditions produce a spectrum of ultramafic magma types. Komatiites form by high degrees of melting, at great depths, of an essentially anhydrous source. Barberton‐type komatiites are moderately high degree melts from a particularly hot and deep source; Munro‐type komatiites are very high degree melts of a slightly cooler source. Kimberlites result from low‐degree melting, also at great depth, of sources rich in incompatible elements and CO2 + H2O. They become further enriched through interaction with overlying asthenospheric or lithospheric mantle. Boninites form by hydrous melting of metasomatized mantle above a subduction zone. Just like basalts, the different types of ultramafic magma, and the conditions in which they form, are readily identified using major and trace element criteria.

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Crossref · 10.1029/2002jb002157

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  • Voluminous TTG generation in Archean plateau environments is perhaps unexpected based on comparison with differentiated modern-day examples, which are nominally anhydrous at depth.

    “Voluminous TTG generation in Archean plateau environments is perhaps unexpected based on comparison with differentiated modern-day examples (e.g.Arndt, 2003), which are nominally anhydrous at depth”

    From Secular change and the onset of plate tectonics on Earth (2020) · cites this paper as Arndt, 2003

    The Introduction (§1, paragraph 2; page unavailable) says that modern ocean-island tholeiites form from a near-anhydrous mantle source, supporting the dryness comparison. It does not identify differentiated modern plateaus as the examples or discuss whether voluminous TTG generation in Archean plateaus would be unexpected. (LLM, conf=0.82)

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1 of the 51 references couldn’t be matched to a known paper.

Research works printed but not linked: 10

  1. Arndt, N. T., Archean komatiites, in Archean Crustal Evolution, edited by K. C. Condie, pp. 11 -44, Elsevier Sci., New York, 1994.
  2. Arndt, N. T., and R. W. Nesbitt, Geochemistry of Munro Township basalts, in Komatiites, edited by N. T. Arndt and E. G. Nisbet, pp. 309 -330, Allen and Unwin, Concord, Mass., 1982.
  3. Arndt, N. T., and E. G. Nisbet, What is a komatiite?, in Komatiites, edited by N. T. Arndt and E. G. Nisbet, pp. 19 -28, Allen and Unwin, Concord, Mass., 1982.
  4. Grove, T. L., M. J. deWit, and J. Dann, Komatiites from the Komati type section, Barberton, South Africa, in Greenstone Belts, edited by M. J. de Wit and L. D. Ashwal, pp. 422 -437, Oxford Sci., Oxford, U.K., 1997.
  5. Hickey-Vargas, R., Boninites and tholeiites from DSDP Site 458, Mariana forearc, in Boninites, edited by A. J. Crawford, pp. 257 -356, Chapman and Hall, New York, 1989.
  6. Menzies, M. A., Archaean, Proterozoic and Phanerozoic lithospheres, in Continental Mantle, edited by M. A. Menzies, pp. 67 -86, Clarendon, Oxford, U.K., 1990.
  7. Nisbet, E. G., The tectonic setting and petrogenesis of komatiites, in Ko- matiites, edited by N. T. Arndt and E. G. Nisbet, pp. 501 -520, Allen and Unwin, Concord, Mass., 1982.
  8. Nowell, G. M., D. G. Pearson, P. D. Kempton, S. R. Noble, and C. B. Smith, Origins of kimberlites, in Proceeding of the 7th International Kimberlite Conference, Cape Town, edited by J. J. Gurney et al., pp. 616 -624, Natl. Book, Cape Town, 1999.
  9. Smith, C. B., J. J. Gurney, E. M. W. Skinner, C. R. Clement, and N. Ebrahim, Geochemical character of southern African kimberlites: A new approach based on isotopic constraints, Trans. Geol. Soc. S. Afr., 88, 267 -280, 1985.
  10. by N. T. Arndt and E. G. Nisbet, pp. 347 -398, Allen and Unwin, Con- cord, Mass., 1982.

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Authors
Arndt, N.
Affiliations
Pôle de recherche et d'enseignement supérieur Université de Grenoble (FR)
Corresponding author
Arndt, Nicholas
Venue
Journal of Geophysical Research: Solid Earth
Published
2003-06
Volume
108
Issue
B6
Pages
B6 2293
ISSN
0148-0227 (ISSN-L)
OpenAlex
W2000789282
Cited by
243
References
51
Citations by year
2026: 4 · 2025: 12 · 2024: 15 · 2023: 11 · 2022: 9 · 2021: 16 · 2020: 7 · 2019: 12 · 2018: 13 · 2017: 17 · 2016: 8 · 2015: 12 · 2014: 10 · 2013: 15 · 2012: 12
FWCI
8.51
Type
journal article
Language
en
Open access
Locations
  • Journal of Geophysical Research Atmospheres (publishedVersion)
  • HAL (submittedVersion, other-oa)
Topics
  • Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
  • Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Geochemistry and Elemental Analysis
  • Physical Sciences › Physics and Astronomy › Astronomy and Astrophysics › Astro and Planetary Science
Keywords
komatiite, kimberlite, boninite, ultramafic magma, mantle melting, hydrous melting, metasomatized mantle, subduction zone, mantle source composition, trace element geochemistry, major element geochemistry

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