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Paleoshorelines and the Evolution of the Lithosphere of Mars

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Ruiz Pérez, Javier and Tejero López, Rosa and Gómez Ortiz, David and López, Valle (2006) Paleoshorelines and the Evolution of the Lithosphere of Mars. In Space Science: New Research. Nova Science Publishers, pp. 141-164. ISBN 1-60021-005-8

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Abstract

The existence of features indicative of shorelines of ancient oceans on Mars has been proposed for several authors. In this chapter we revise the topography of possible Martian paleoshorelines, and their consequences for the amount of water infilling ocean basins when water load is considered. We show that a re-evaluation of paleoshorelines is need. For example, the putative Meridiani shoreline could be the same feature as some portions of the Arabia shoreline. Indeed, elevations in the Meridiani shoreline are roughly similar to that of the Arabia shoreline in northeast Arabia, Utopia (not taken into account the Isidis basin), Elysium, and Amazonis regions. This is still far of an equipotential surface, but a paleoshoreline through these regions and the Meridiani horeline would be better candidate to represent a paleoequipotential surface than the Arabia shoreline sensu strito. Moreover, the elevation of the Arabia shoreline in northern Arabia Terra after is intriguingly close to the mean elevation of the Deuteronilus shoreline, and it cannot be discarded a “mixed” Arabia/Deuteronilus shoreline, which would include the Arabia shoreline in northern Arabia Terra, and the Deuteronilus shoreline elsewhere.


Item Type:Book Section
Uncontrolled Keywords:Mars
Subjects:Sciences > Geology > Geodynamics
ID Code:33193
Deposited On:21 Sep 2015 09:27
Last Modified:21 Sep 2015 09:27

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