As we search the equatorial source of methane, we will probably be near the Vallis Marineris, I assume. As there are many strong fault movement indicators in the imaging showing severe stressed and compressed rocks in the subunits there, how would we select a good target to land at in that area? If we are distinguishing between alteration/slick'n slide zones with faulting and mineral alteration as a possible source for the gas, can there be a reasonable landing spot where a life source might be found? Lots of sand/dunes/slopes, and irregular features, but where are the sediment spots that are exposed and not a steep slope or deep particulates?
Serpentine was identified on Mars and is written to release the gas under stress/alteration (on Earth).
Sounds like a tough seeking of a needle in the various gorges and even then how would a drill that large work on a slope?
All part of the developing process, in any planet or landscape. Many bodies may be checked eventually, if Mars allows a first try with success for the equipment.
I never really understood the graphic showing distribution, of the gas. It was written to be greatest along the Marineris valley system, yet that area was or is active geologically. I thought the graphic showed wider distribution. ?
Tried to post this earlier today, but it 'vaporized'. Second try.