The pH of Enceladus’ ocean

@article{Glein2015ThePO,
  title={The pH of Enceladus’ ocean},
  author={Christopher R. Glein and John A. Baross and Hunter Waite},
  journal={Geochimica et Cosmochimica Acta},
  year={2015},
  volume={162},
  pages={202-219}
}

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  • J. HaoC. Glein R. Hazen
  • Geology, Physics
    Proceedings of the National Academy of Sciences of the United States of America
  • 2022
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References

SHOWING 1-10 OF 258 REFERENCES

The Chemistry of Enceladus' Ocean from a Convergence of Cassini Data and Theoretical Geochemistry

Introduction: Saturn’s icy satellite Enceladus is strongly suspected of possessing a subsurface ocean of liquid water below its geologically active south polar region [1-5]. The ocean is thought to

Sodium chloride as a geophysical probe of a subsurface ocean on Enceladus

Recent data from the Cassini spacecraft suggest that an ocean exists inside Saturn's satellite Enceladus. Here, we show that the size of an ocean can be estimated if the NaCl concentration of the

Habitability of Enceladus: Planetary Conditions for Life

It is hypothesized that Enceladus’ plume, tectonic processes, and possible liquid water ocean may create a complete and sustainable geochemical cycle that may allow it to support life.

An oceanic composition on early and today's Enceladus

The oceanic composition on Saturn's moon Enceladus is evaluated through calculations of thermochemical equilibria at hydrothermal and freezing settings. Conditions of rock alteration are constrained

Possible evidence for a methane source in Enceladus' ocean

The internal ocean of Enceladus can be expected to present conditions favorable to the trapping of volatiles in clathrates. This process could influence the eventual composition of the ocean and

Sodium salts in E-ring ice grains from an ocean below the surface of Enceladus

The identification of a population of E-ring grains that are rich in sodium salts, which can arise only if the plumes originate from liquid water, and the abundance of various salt components in these particles exhibit a compelling similarity to the predicted composition of a subsurface Enceladus ocean in contact with its rock core.

Ongoing hydrothermal activities within Enceladus

Analysis of silicon-rich, nanometre-sized dust particles (so-called stream particles) that stand out from the water-ice-dominated objects characteristic of Saturn indicate ongoing high-temperature (>90 °C) hydrothermal reactions associated with global-scale geothermal activity that quickly transports hydroThermal products from the ocean floor at a depth of at least 40 kilometres up to the plume of Enceladus.

Liquid water on Enceladus from observations of ammonia and 40Ar in the plume

Jets of water ice from surface fractures near the south pole of Saturn’s icy moon Enceladus produce a plume of gas and particles. The source of the jets may be a liquid water region under the ice

Thermal evolution of Pluto and implications for surface tectonics and a subsurface ocean

...