Examining Controls on Fluid Overpressure in Buried Basement Highs of Oceanic Crust: Implications for Permeability of the Astoria Fan

Abstract Vigorous hydrothermal circulation in the basement aquifer of the oceanic crust homogenizes temperatures within the aquifer and generates fluid overpressures at the tops of buried basement highs. At a site ∼25 km seaward of the Cascadia subduction zone deformation front, fluid overpressure a...

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Bibliographic Details
Main Authors: Thomas Kyritz, Glenn A. Spinelli, Robert N. Harris
Format: Article
Language:English
Published: Wiley 2025-07-01
Series:Geochemistry, Geophysics, Geosystems
Online Access:https://doi.org/10.1029/2025GC012248
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