134 research outputs found
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The morphologic difference between crater slopes with and without gullies on Mars
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Crater shape evolution with latitude in Terra Cimmeria, Mars - implications for climate
A reassessment of impact crater degradation by climatic processes on early Mars
Crater degradation on Mars is a key to understand erosion through time. Strongly eroded craters in the highlands are interpreted to be the result of enhanced erosion rate during the Noachian epoch. While fluvial valleys climatic meaning and duration are still difficult to define (strongly warmer climate or episodic activity under slightly warmer climate), the enhanced Noachian craters degradation favors a prolonged erosion with high erosion rates. Most data used for classification and understanding of these craters were done using Viking data by photoclinometry. We choose here to use MOLA data in two Noachian regions to study the evolution of this degradation in time: North Hellas and Southern Margaritifer Terra
Stratigraphy and Geologic History of the InSight Landing Site, Mars
We describe the local stratigraphy and geologic history of a regolith-covered lava plain at the InSight landing site using orbital and lander observations
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