Lower crustal variability and the crust / mantle transition at the Atlantis Massif oceanic core complex

  title={Lower crustal variability and the crust / mantle transition at the Atlantis Massif oceanic core complex},
  author={Donna K. Blackman and J. A. Collins},
[1] Seismic refraction data provide new constraints on the structure of the lower oceanic crust and its variability across the Atlantis Massif oceanic core complex, ∼30°N on the Mid‐Atlantic Ridge. A 40 km‐long spreading‐ parallel profile constrains P‐wave velocities to depths of up to ∼7 km beneath the seafloor. Two shorter spreading‐ perpendicular lines provide coverage to ∼2 km depth. The anomalous character of the massif’s central dome crust is clear compared to the neighboring rift valley… CONTINUE READING

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