Seismic structure of the St. Paul Fracture Zone and Late Cretaceous to Mid Eocene oceanic crust in the equatorial Atlantic Ocean near 18°W

Abstract

 Seismic structure along the St. Paul fracture zone reflects magmatically accreted oceanic crust  Oceanic crust across St. Paul shows only small thickness variations, lacking evidence for regional crustal thinning near fracture zones  Magmatic nature of crust supports a mechanism where transform crust is augmented before being turned into a fracture zone