Archived.pdf

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🔗 Source: web.archive.org
📊 Size: 239 KB
📄 Pages: 2 pages
⬇️ Downloads: 97

Summary

Saturn's icy satellite Enceladus is suspected to have a subsurface ocean of liquid water, which is thought to be the source of chemicals in its plume. The composition of the ocean is of great interest, as it contains clues to Enceladus' geochemical evolution and potential for life. A top-down model using Cassini data constrains the ocean's chemistry, suggesting a basic pH of ~12, similar to those found in low-temperature serpentinization environments on Earth. A bottom-up model using geochemical speciation calculations supports this finding, suggesting that serpentinization has been an important process in controlling the ocean's pH, with implications for astrobiology and the potential for life. The models predict the ocean to be a saline water dominated by Na+, Cl-, and CO3-2, with a pH range of 10.9-11.5.

Description

Saturn's icy satellite Enceladus is suspected to have a subsurface ocean of liquid water, which is thought to be the source of chemicals in its plume.

Technical Information

  • File Format: PDF
  • File Size: 239 KB
  • Pages: 2
  • Language: EN
  • Total Downloads: 97
  • Last Updated: 3 weeks ago

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