Thermodynamics of the External Geodynamics of Mars Water Phases and Weathering Processes

Abstract

This chapter studies the thermodynamic parameters of the external geodynamics of Mars. As matter of fact, the thermodynamics on Mars surface are basically controlled by the solar forcing and the internal geodynamics of the planet. In relation to the physical and chemical characteristics of water on Mars, we can build the Martian chronology. First, the Phyllosian is the phyllosilicates thermodynamics era. Second, the Theiikian is the age of sulfate thermodynamics. Third, the Siderikian, according to siderikos (ferric in Greek), is the era of anhydrous ferric oxides thermodynamics. The Martian chronology may be also built on catering. So, the meteoritic bombardment is linked to increasing disorder in the solar systems. That is to say, it is quite linked to the thermodynamics of the solar system. As direct repercussions of variable thermodynamics during the Mars history, the authors investigate the sedimentology and stratigraphy in different localities on Mars: Arabia Terra, Meridiani Planum, Terby Crater, and Gale Crater.