Giant impacts on early Mars and the cessation of the Martian dynamo

@inproceedings{Roberts2009GiantIO,
  title={Giant impacts on early Mars and the cessation of the Martian dynamo},
  author={James H. Roberts and Robert J. Lillis and Michael Manga},
  year={2009}
}
[1] Although Mars currently has no global dynamo-driven magnetic field, widespread crustal magnetization provides strong evidence that such a field existed in the past. The absence of magnetization in the younger large Noachian basins suggests that a dynamo operated early in Martian history but stopped in the mid-Noachian. Within a 100 Ma period, 15 giant impacts occurred coincident with the disappearance of the global magnetic field. Here we investigate a possible causal link between the giant… CONTINUE READING
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