An ultraslow-spreading class of ocean ridge

@article{Dick2003AnUC,
  title={An ultraslow-spreading class of ocean ridge},
  author={Henry J. B. Dick and Jian Lin and Hans Schouten},
  journal={Nature},
  year={2003},
  volume={426},
  pages={405-412}
}
New investigations of the Southwest Indian and Arctic ridges reveal an ultraslow-spreading class of ocean ridge that is characterized by intermittent volcanism and a lack of transform faults. We find that the mantle beneath such ridges is emplaced continuously to the seafloor over large regions. The differences between ultraslow- and slow-spreading ridges are as great as those between slow- and fast-spreading ridges. The ultraslow-spreading ridges usually form at full spreading rates less than… 
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Asymmetric crustal structure of the ultraslow-spreading Mohns Ridge
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TLDR
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