Heat and fluid flux through sediment on the western flank of the Mid‐Atlantic Ridge

A hydrogeological study of North Pond

Marcus G. Langseth, Keir Becker, Richard P. Von Herzen, Peter Schultheiss

Research output: Contribution to journalArticle

55 Citations (Scopus)

Abstract

A comprehensive survey of heat flow, sediment thickness and bathymetry in a large intermontane sediment pond on the western flank of the Mid‐Atlantic Ridge (North Pond) shows that only 20 to 25% of the heat escaping from the lithosphere flows through the sediments in the pond even though they completely cover a 70 km2 area of the seafloor. Three in situ pore‐pressure gradient measurements gave values that were negative relative to hydrostatic, indicating that there is drawdown of water through the sediment at rates of 1 to 5 mm/yr. North Pond is a recharge zone for hydrothermal circulation that is probably driven by lateral pressure gradients produced by topographic relief.

Original languageEnglish (US)
Pages (from-to)517-520
Number of pages4
JournalGeophysical Research Letters
Volume19
Issue number5
DOIs
StatePublished - 1992

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ridges
heat flux
sediments
pond
fluid
fluids
sediment
hydrothermal circulation
sediment thickness
bathymeters
hydrostatics
drawdown
pressure gradients
pressure gradient
lithosphere
heat transmission
bathymetry
heat flow
recharge
relief

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

Heat and fluid flux through sediment on the western flank of the Mid‐Atlantic Ridge : A hydrogeological study of North Pond. / Langseth, Marcus G.; Becker, Keir; Von Herzen, Richard P.; Schultheiss, Peter.

In: Geophysical Research Letters, Vol. 19, No. 5, 1992, p. 517-520.

Research output: Contribution to journalArticle

Langseth, Marcus G. ; Becker, Keir ; Von Herzen, Richard P. ; Schultheiss, Peter. / Heat and fluid flux through sediment on the western flank of the Mid‐Atlantic Ridge : A hydrogeological study of North Pond. In: Geophysical Research Letters. 1992 ; Vol. 19, No. 5. pp. 517-520.
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