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The article focuses on a study related to anomalous K-Pg–aged seafloor attributed to impact-induced mid-ocean ridge magmatism. Topics discussed include evidence for the triggering of magmatism on a global scale by the Chicxulub meteorite impact at the Cretaceous-Paleogene (K-Pg) boundary; concentrated positive free-air gravity and coincident seafloor topographic anomalies; and seafloor creation at fast-spreading rates.

The article presents the discussion on slabs of old ocean crust falling in slow motion into the mantle separating tectonic plates. Topics include ship-based observations of the alternating magnetic "stripes" resulting as slabs of crust unfurling from the seafloor spreading centers; and assembling a complementary high-resolution record for the Pacific Ocean where seafloor spreading being faster and more complex.