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Record of mid-Archaean subduction from metamorphism in the Barberton terrain, South Africa

Author

Listed:
  • Jean-François Moyen

    (University of Stellenbosch)

  • Gary Stevens

    (University of Stellenbosch)

  • Alexander Kisters

    (University of Stellenbosch)

Abstract

Early signs of plate tectonics A News Feature in Nature of 13 July aired a controversy about the 'age' of plate tectonics. Plate tectonics shaped the world we see today, but the question of when it started is one that divides geologists. In this issue Moyen et al. make a strong case for the existence of subduction processes (a key component of plate tectonics) over 3 billion years ago, at a time at which the very existence of plate tectonics has been questioned. The evidence in this case comes from signs of high pressure, low temperature metamorphism 3.2 billion years ago in an Archaean mountain-belt, the Barberton greenstone belt in South Africa. This is the first clear indication of this type of activity in the mid-Archaean.

Suggested Citation

  • Jean-François Moyen & Gary Stevens & Alexander Kisters, 2006. "Record of mid-Archaean subduction from metamorphism in the Barberton terrain, South Africa," Nature, Nature, vol. 442(7102), pages 559-562, August.
    • Handle: RePEc:nat:nature:v:442:y:2006:i:7102:d:10.1038_nature04972
    DOI: 10.1038/nature04972
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