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The Valley Network Record on Mars (Class 2)

The Valley Network Record on Mars (Class 2). LPSC Key Sessions on the Mars Hydrological Cycle. Tuesday Afternoon, Sess 251. Ground Ice and Climate Change {e.g., new Clifford et al. abs on water in the cryosphere} Wednesday Morning, Sess 401. Ancient Mars Crust

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The Valley Network Record on Mars (Class 2)

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  1. The Valley Network Record on Mars (Class 2)

  2. LPSC Key Sessions onthe Mars Hydrological Cycle • Tuesday Afternoon, Sess 251. Ground Ice and Climate Change {e.g., new Clifford et al. abs on water in the cryosphere} • Wednesday Morning, Sess 401. Ancient Mars Crust • Thursday Morning, Sess. 501. Mars Aqueous Processes • Thursday Afternoon (3:15PM), Sess. 556. Martian Gullies • Numerous posters!

  3. What do we want to know in general? • Intensity • Precipitation[?] rates? • Discharges? • Persistence • Global or local activity? • Long-lived climate or short excursions? • Intermittency? One episode or many? Formation Timescales… • Environmental Requirements (and/or) Implications • Is an ‘ocean’ necessary to support a climate where it rains or snows? Are large lakes good enough?

  4. Main Topic Today: • How long does it take to form the deltas for valley networks on Mars? How can we estimate this? Are the various methods reliable and consistent with other geological estimates?

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