Hydrothermal alteration of the oceanic lithosphere

EM Schwarzenbach, M Harris

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

Oceanic crust formed along the global network of ocean ridge spreading centers is exposed to significant interaction with circulating seawater. This chemical exchange between fluid and rock that proceeds from sub-magmatic to ambient seawater temperatures significantly changes the rock and fluid compositions. Here we review the current state of knowledge on the diversity of alteration processes taking place in the ocean crust and upper mantle, from fast to ultra-slow spreading ocean ridges. We highlight the impact of ocean floor alteration on the mineralogical, chemical and physical properties of the oceanic lithosphere, the global element cycle and ocean water chemistry.

Original languageEnglish
Title of host publicationTreatise on Geochemistry
PublisherScience Direct (Elsevier)
Pages1-37
Volume2
Edition3rd
ISBN (Electronic)978-0-323-99763-8
ISBN (Print)9780323997621
DOIs
Publication statusPublished - 1 Jan 2025

Publication series

NameTreatise of Geochemistry

ASJC Scopus subject areas

  • General Earth and Planetary Sciences

Keywords

  • Fluid-rock interaction
  • Geochemical cycles
  • Hydrothermal alteration
  • International Ocean Discovery Program IODP
  • Metasomatism
  • Mid-ocean ridges
  • Ocean crust
  • Oceanic core complexes
  • Petrophysical changes
  • Scientific drilling
  • Serpentinization

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