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Dune Exploration on Mars

Dune Exploration on Mars. Student: Danielle Clarke and Mentor: Briony Horgan. ASU/NASA Space Grant Program. What are Sand Dunes?. What are sand dunes made of on Mars?. How do we identify glass on Mars?. Near Infrared Spectra on Mars. Shape gets more concave with weathering.

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Dune Exploration on Mars

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  1. Dune Exploration on Mars Student: Danielle Clarke and Mentor: Briony Horgan • ASU/NASA Space Grant Program

  2. What are Sand Dunes?

  3. What are sand dunes made of on Mars?

  4. How do we identify glass on Mars? Near Infrared Spectra on Mars • Shape gets more concave with weathering Peaks shift to the left with weathering Dust Basaltic Dunes Unweathered Glass More Weathered Glass Very Weathered Glass Figure 3: Near Infrared Spectra on Mars

  5. Where are the Dunes on Mars Located? Figure 4:Map of Mars, Dunes are in yellow ( Mars Global Digital Dune Database).

  6. Dunes we have examined so far: Figure 5:Map of Mars, Dunes are in yellow ( Mars Global Digital Dune Database).

  7. What does our data say about the glass in the dune fields on Mars? More glass Figure 6: Albedo Vs. Concavity Graph

  8. What does our data say about the glass in the dune fields on Mars? More Glass Figure 7: Peak Position Vs. Concavity of All Dunes

  9. Result: Glass may be common in martian sand dunes Figure 8: Distribution of examined dune fields (Horgan, Clarke, Bell 2012)

  10. Thank you

  11. What does our data say about the glass in the dune fields on Mars? More Glass Figure 9: Albed0 Vs. Peak Position of All Dunes

  12. Visual Data

  13. Mars Global Digital Dunes Database Figure 10: Amount of dune fields on Mars from North to South (www.mar-dunes.org)

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