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Martian Valleys: Morphology, Distribution, Age, and Origin

Pieri, David C.·1980·Science

Abstract

Branching valley networks throughout the heavily cratered terrain of Mars exhibit no compelling evidence for formation by rainfall-fed erosion. The networks are diffuse and inefficient, with irregular tributary junction angles and large, undissected intervalley areas. Rather, the deeply entrenched canyons, with blunt amphitheater terminations, cliff-bench wall topography, lack of evidence of interior erosion by flow, and clear structural control, suggest headward extension by basal sapping. The size-frequency distributions of impact craters in these valleys and in the heavily cratered terrain that surrounds them are statistically indistinguishable, suggesting that valley formation has not occurred on Mars for billions of years.

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Metadata

Authors
Pieri, D. C.
Venue
Science
Published
1980-11-21
Volume
210
Issue
4472
Pages
895-897
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2085982749
Cited by
255
References
0
FWCI
9.31
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Martian Valleys: Morphology, Distribution, Age, and Origin. https://app.cochat.ai/papers/10.1126/science.210.4472.895
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Pieri, D. C. (1980). Martian Valleys: Morphology, Distribution, Age, and Origin. Science. https://doi.org/10.1126/science.210.4472.895

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.