Ancient oceans, ice sheets and the hydrological cycle on Mars

Details Ancient oceans, ice sheets and the hydrological cycle on Mars Ancient oceans, ice sheets and the hydrological cycle on Mars

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991natur.352..589b&link_type=abstract

Nature (ISSN 0028-0836), vol. 352, Aug. 15, 1991, p. 589-594. Research supported by NASA.

Mathematics

Logic

343

Hydrological Cycle, Mars Atmosphere, Mars Surface, Ocean Bottom, Geomorphology, Ice Formation, Paleontology

Scientific paper

A variety of anomalous geomorphological features on Mars can be explained by a conceptual scheme involving episodic ocean and ice-sheet formation. The formation of valley networks early in Mars' history is evidence for a long-term hydrological cycle, which may have been associated with the existence of a persistent ocean. Cataclysmic flooding, triggered by extensive Tharsis volcanism, subsequently led to repeated ocean formation and then dissipation on the northern plains, and associated glaciation in the southern highlands until relatively late in Martian history.

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