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This reaction encapsulates key take-home messages of the field observations and

This reaction encapsulates key take-home messages of the field observations and laboratory dissolution experiments. reactants  products. water + rock + (acid or base)  chemicals in solution + precipitated solids. e.g., clays (these provide

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This reaction encapsulates key take-home messages of the field observations and

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  1. This reaction encapsulates key take-home messages of the field observations and laboratory dissolution experiments. reactants  products water + rock + (acid or base) chemicals in solution + precipitated solids e.g., clays (these provide a long-term record of the presence of water) cations and anions (these include the nutrients for microbes)

  2. Young Mars several billion years ago Present day Mars We assess the habitability of Mars-like environments on Earth as “practice” for rover missions to Mars. We identify the requirements for life at these sites, such as the hydrothermal system at Lassen. We begin by first looking for the presence of liquid water, and then we identify the other requirements, and any solid minerals or rocks that formed in this system. On Mars, the liquid water is now gone and all that’s left behind are the solid minerals and rocks. We have to read the story left behind in these solids in order to assess the habitability of a site. While on Earth we begin by first looking for liquid water, on Mars we begin by first looking for minerals or rocks that formed in the presence of liquid water. So we start with the solid and work our way back to the original liquid environment that it formed in. Earth studies guide Mars exploration

  3. This reaction encapsulates key take-home messages of the field observations and laboratory dissolution experiments. reactants  products water + rock + (acid or base) chemicals in solution + precipitated solids e.g., clays (these provide a long-term record of the presence of water) cations and anions (these include the nutrients for microbes) On Earth we go to places with liquid water, and then characterize all of the processes that can make them habitable. On Mars we go to places with clays, and then determine whether other requirements for supporting life were once present.

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