Brown earth soils are widespread in Britain, except in highland areas. Soil organisms, like earthworms, mix the materials together, merging the boundaries between the horizons. These soils are ...

Soil, dirt, earth—whatever you want to call it ... we can view these microscopic powerhouses in all their glory. In the brown-painted first galleries, a series of multicoloured planet-like ...

Researchers will have to wait until samples from Mars are brought back to Earth to confirm their study ... a planetary scientist at Brown, called the research a “door-opening opportunity.” ...

There are three main British soils; podzol, brown earth and gley ... Eluviation is the removal of soil, clay, silt or fine organic matter in suspension from a soil horizon. The iron and aluminium ...