Thermal modeling of slow-spreading mid-ocean ridges in the presence of magma chamber

Doǧa Düşünür-Dogan*, Javier Escartin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The discovery of an axial magma chamber (AMC) at the slow-spreading Lucky Strike segment of the Mid-Atlantic Ridge gives a motivation to further investigate the parameters that control the presence of an AMC, and its long term stability or temporal variability. To constrain the temperature distrubution due to the presence of an AMC in the Lucky Strike segment, we used a 3-dimensonal finite difference model. The thermal state of ridge segments is predominantly influenced by the rate of the magma supply, the magma input geometry and the efficiency of hydrothermal circulation. By varying those parameters, we constrained thermal conditions which allow for the presence of AMCs at Lucky Strike. Numerical modeling shows that only the geometry of magmatic input can provide conditions to produce a durable AMC.Interplay between the AMC and the hydrothermal system results in a threedimensional steep thermal gradients.

Translated title of the contributionMagma odalı yavaş yayılan okyanus ortası sırtlarda isı modellemesi
Original languageEnglish
Pages (from-to)1-16
Number of pages16
JournalYerbilimleri/ Earth Sciences
Issue number1
Publication statusPublished - 2012


  • Axial magma chamber
  • Mid-ocean ridge
  • Thermal modeling


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