Geology, Composition, Age and Stratigraphy of the Polar Layered Deposits on Mars

Details Geology, Composition, Age and Stratigraphy of the Polar Layered Deposits on Mars Geology, Composition, Age and Stratigraphy of the Polar Layered Deposits on Mars

Jan 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998lpico.953r..18h&link_type=abstract

The First International Conference on Mars Polar Science and Exploration, Proceedings of the Conference held at Camp Allen, TX.

Computer Science

Mars (Planet), Mars Surface, Planetary Geology, Stratigraphy, Ice, Polar Regions, Stratification, Erosion, Climate Change

Scientific paper

It is widely believed that the martian polar layered deposits record climate variations over at least the last 100 m.y., but the details of the processes involved and their relative roles in layer formation and evolution remain obscure. Variations in axial obliquity and orbital eccentricity are thought to influence the climates of both Earth and Mars, but are of greater amplitude in the martian case. The Earth's hydrosphere and biosphere do not have a current counterpart on Mars, so it should be simpler to determine the causes and history of climate changes on Mars. Knowledge of the geology of the martian polar deposits is essential in deducing the processes responsible for their formation and erosion and the mechanisms by which climatic variations are preserved. A common presumption among Mars researchers is that the layered deposits are the result of variations in the proportions of dust and water ice deposited over many climate cycles, but their composition is poorly constrained in the north and essentially unknown in the south.

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