Post on 05-Feb-2021
Orbital and Rover-Based Exploration of Perseverance
Valley, Endeavour Crater, Mars
Ray Arvidson and the Athena Science Team
T206: Geomorphology and Landscape Evolution of Mars: The G. K. Gilbert Session
10/24/17
244-4
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Marathon Valley
Smectites
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Marathon Valley
Hydrated Phases
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Marathon Valley
Hydrated Sulfates
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Marathon Valley
Perseverance Valley
Wind Sculpted Rim
10/24/17
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Cape Tribulation
Cape Byron
4456Navcam
Grooves
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Sol 4456 Navcam Mosaic Looking Down Marathon Valley
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Grooves due to polygonally fractured bedrock with regolith fill
Central mound
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4754-65 Pancam “Sprained Ankle” Mosaic
Hydrated sulfates
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4754-65 Pancam “Sprained Ankle”Mosaic
Broad, shallow trough
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Pancam Color “Sprained Ankle” Mosaic
Perseverance ValleyUpper end of broad, shallow trough
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Pancam Color “Sprained Ankle” Mosaic
Upper end of broad, shallow trough
Perseverance Valley
Atacama Desert debris flow deposits
Bill Dietrich, Berkeley
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Sol 4818Navcammosaic
Sol 4878Pancam image
Perseverance Valley
Hydrated sulfates
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Sol 4818 Pancam Mosaic
Scoured bedrock
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Regolith
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Wind scoured bedrock
Regolith
Uphill
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Wind Sculpted Rim Segment
Uphill
Gullies
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Winter snowpack site
Perseverance Valley• Field work underway, much remains to be
done as rover power increases after 10/31/17 winter minimum
• Channels extend to west and east of rim, no western catchment
• Unique topographic and morphologic settings
• Wind has shaped PV outcrops at cm to 10’s cm scales
• Considerable diffusive smoothing and regolith deposits
• Speculating: Previous climate snowpack accumulation, some melting with fluvial and debris flow activity, drying out, letting diffusive smoothing and wind action dominate
• But, let us finish the field work and analyze all the data before we come to final conclusions
Prince Christian Sound Southern Greenland September 2017