Seminar

The polygonal patterned lake ice on the Tibetan Plateau may give us some new insights into the genesis of some polygonal ground patterns at the high latitude of the southern hemisphere of Mars. Those lakes on the Tibetan Plateau are characterized by their high elevation (>4000 m), shallow depth, strong evaporation, and long and cold winter. We find printed polygonal pattern on the ground of these polygonal patterned lake ice, which form a long geologic record like on Mars. We suggest the evolution of this type of polygonal web under the climate and geographic conditions similar to those of the Tibetan Plateau can explain the genesis of those polygonal webs at the high latitude of the southern hemisphere of Mars. In this talk, I will focus on a conceptual model of the cycle of water in making the polygonal webs and their necessary preconditions.

Additional Information: Mrs. Nadia BOPPART, nboppart@connect.hku.hk