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Olympus Mons

Olympus Mons. Mitchell Kirshner 3/11/14. History. 19 th century Mariner 9 Viking Mars Global Surveyor. Location. 18.65 °N, 226.2 °W Northwest of Tharsis 23 km tall, +21.287 km, -8.180km 600 km across. Timeline.

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Olympus Mons

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  1. Olympus Mons Mitchell Kirshner 3/11/14

  2. History • 19th century • Mariner 9 • Viking • Mars Global Surveyor

  3. Location • 18.65 °N, 226.2 °W • Northwest of Tharsis • 23 km tall, +21.287 km, -8.180km • 600 km across

  4. Timeline • MOC and THEMIS used to find that Noachian period >3.7Ga yielded global volcanism • followed by vent volcanism in Tharsis, Elysium, and Circum-Hellas • later just in Tharsis and Elysium • Activity localized to Tharsis around 1.6Ga • volcanism was active until 200-100 Ma

  5. Effusion • rate of magma supply to Kilauea and Moana Loa averages .01 km3/yr • Volume is estimated to be 2.6*10^6 km^3 • Using rate accumulation values given in Hawaii, it would take 130 million years to construct shield volcano

  6. Gravity

  7. Aureole Deposits • Northwest • East • Flank failure-induced landslides • Ice-Lubricated Gravity Spreading • Glacial Interactions

  8. Escarpment • 8 km • Assymetry • Northwest=shallow, southeast=steep • Water • Mass movement • Faults

  9. Caldera • SiO2 content • Lava fountain  cinders

  10. Magma Chamber • d<16 km • Estimated depth of Martian primary melts • 140-200 km

  11. Atmospheric Effect • Constant column density • ~5 decrease in mass from bottom • Low atmospheric density

  12. Water • Deep within volcano • Shielded from radiation • East flank- faults

  13. Future Landings • Difficult to study via rover • 8km escarpment • Parachute • Dust

  14. The End

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