Emplacement and cooling of komatiite lavas

  title={Emplacement and cooling of komatiite lavas},
  author={Herbert E. Huppert and R. Stephen J. Sparks and J. Stewart Turner and Nicholas T. Arndt},
We propose that komatiite lavas were emplaced as turbulent flows, accompanied by vigorous forced convection with cooling rates often in excess of hundreds of °C h−1. They melted and assimilated up to 10% of the ground over which they flowed, forming deep channels. Nickel sulphide mineralization may have resulted from incorporation of sulphur-rich sediment. After emplacement, high cooling rates persisted, resulting in spinifex textures due to compositional convection.