Mars Colonization 

resources available on mars
1.The surface of Mars is primarily composed of basalt

2. The Phoenix lander directly sampled water ice in Martian soil

3. Some martian soil appropriate for groving certain agricultures e.g. Asparagus

    Basalt is good material to make a protectional cave on, to produce insulation, and basalt roving, which is stronger than steel.
    Possibility of food production will make Martian settlements independent of expensive deliveries from the Earth. 

Colonisation stages

1. Rocket with digging robots are sent to the Mars
2. Robots drop-off on the surface
3. Robots analyse basalt columns on strength value, then each chooses a weakest pillar that equidistant from the others - it is a start position
4. Robots drill basalt, moving down and increasing diameter of withdrawn rock with each step, until it reaches strong pillars that remain
    as columns 
5. Chaff set aside to form network of the rampants, in order to protect skylight holes from the wind and dust
6. After caves are ready human expidition rush to the Mars
7. Astronauts finish the construction and arrange technical facilities as water, oxygen, basalt processing line, etc. 
8. Using generated basalt roving, robots weave spatial spider-like web, that will be used as spaces and construction to hold domestic
and technical facilities