Latest pulse of Earth: Evidence for a mid-Cretaceous superplume
Roger Larson 1991 Geology v19 p547-550

This paper, published in Geology, summarizes the evidence for a superplume event in the mid-Cretaceous from 120-80 Ma. This evidence is based on estimated oceanic crust production rates and a corresponding lack of magnetic reversals during this time. The author hypothesizes that the superplume event originated as a large plume from the core-mantle boundary, and identifies the South Pacific "superswell" region as the decayed remains of the original location of upwelling.

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Resource Type: Journal ArticleKeywords: Cretaceous, superplume, oceanic crust