Loess and life out of Earth?

摘要

Loess is a homogeneous, typically nonstratified, porous, friable, slightly coherent, often calcareous, fine-grained, silty, pale yellow, wind blown (aeolian) and often by water reworked sediment that is distributed on continents world-wide. Recent studies have highlighted the importance of biological loess crusts in trapping and transforming aeolian material into loess and also in prevention from wind and water erosion of deposited material.