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Selisa Rollins Mentor: Dr. Everett Shock School of Earth and Space Exploration

Transport of Elements in the Yellowstone Hydrothermal System. Selisa Rollins Mentor: Dr. Everett Shock School of Earth and Space Exploration. Silica on Mars. Silica deposits dug up by the Spirit. Evidence of past microbial life. Hydrothermal vents are probable cause of silica enrichment.

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Selisa Rollins Mentor: Dr. Everett Shock School of Earth and Space Exploration

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  1. Transport of Elements in the Yellowstone Hydrothermal System Selisa Rollins Mentor: Dr. Everett Shock School of Earth and Space Exploration

  2. Silica on Mars • Silica deposits dug up by the Spirit. • Evidence of past microbial life. • Hydrothermal vents are probable cause of silica enrichment. Figure 1 [1]

  3. Why Yellowstone? • Hydrothermal Systems: • Excellent locations for abundant nutrient supply. • Affect how rocks are altered. • Harbor life and determine which microorganisms live where. • Concentrations of SiO2 are detected in some areas.

  4. Hot Spring Locations and Other Present Elements • Locations: • GOPA • Lower Geyser Basin • Sylvan Spring • Washburn • Elements: • Antimony (Sb) • Arsenic (As) • Boron (B) • Molybdenum (Mo) • Tungsten (W)

  5. Strong Correlations Sylvan Spring

  6. Poor Correlations LGB

  7. Complex Correlations GOPA

  8. Observations and Summary • Molybdenum Concentrations: • Higher at GOPA • Lower at LGB and Sylvan Springs • Arsenic Concentrations • Lower at GOPA • Higher at LGB and Sylvan Springs • Basic solutions present at lower elevations. • Acidic solutions present at higher elevations.  

  9. Acknowledgements • Dr. Everett Shock • GEOPIG Lab: • Tracy Lund • Jeff Havig • Mateo Hernandez • Panjai Prapaipong

  10. References • [1] Astronomy Now Online: http://www.astronomynow.com/080522Spiritfindshotspring- likedepositsonMars.html • [2] Squyres S W; Arvidson R E; Ruff S. Detection of silica-rich deposits on Mars. Science (New York, N.Y.) 2008; 320(5879): 1063-7.

  11. Questions?

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