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Mantle geochemistry: the message from oceanic volcanism

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  • A. W. Hofmann

    (Max-Planck-Institut für Chemie)

Abstract

Basaltic volcanism 'samples' the Earth's mantle to great depths, because solid-state convection transports deep material into the (shallow) melting region. The isotopic and trace-element chemistry of these basalts shows that the mantle contains several isotopically and chemically distinct components, which reflect its global evolution. This evolution is characterized by upper-mantle depletion of many trace elements, possible replenishment from the deeper, less depleted mantle, and the recycling of oceanic crust and lithosphere, but of only small amounts of continental material.

Suggested Citation

  • A. W. Hofmann, 1997. "Mantle geochemistry: the message from oceanic volcanism," Nature, Nature, vol. 385(6613), pages 219-229, January.
    • Handle: RePEc:nat:nature:v:385:y:1997:i:6613:d:10.1038_385219a0
    DOI: 10.1038/385219a0
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    Cited by:

    1. Suraj K. Bajgain & Aaron Wolfgang Ashley & Mainak Mookherjee & Dipta B. Ghosh & Bijaya B. Karki, 2022. "Insights into magma ocean dynamics from the transport properties of basaltic melt," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Ronghua Cai & Jingao Liu & D. Graham Pearson & Andrea Giuliani & Peter E. Keken & Senan Oesch, 2023. "Widespread PREMA in the upper mantle indicated by low-degree basaltic melts," Nature Communications, Nature, vol. 14(1), pages 1-10, December.
    3. Runsheng Yin & Di Chen & Xin Pan & Changzhou Deng & Liemeng Chen & Xieyan Song & Songyue Yu & Chuanwei Zhu & Xun Wei & Yue Xu & Xinbin Feng & Joel D. Blum & Bernd Lehmann, 2022. "Mantle Hg isotopic heterogeneity and evidence of oceanic Hg recycling into the mantle," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    4. Zhendong Zhang & Jessica C. E. Irving & Frederik J. Simons & Tariq Alkhalifah, 2023. "Seismic evidence for a 1000 km mantle discontinuity under the Pacific," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    5. Jiewen Li & Daoyuan Sun & Dan J. Bower, 2022. "Slab control on the mega-sized North Pacific ultra-low velocity zone," Nature Communications, Nature, vol. 13(1), pages 1-11, December.

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