At a microscopic level, the mud contains a balanced mixture of fine clay and silt particles, cohesive organic materials, and ...
The particular conditions of the Posidonia Shale, such as low oxygen levels and deposits of fine mud, enabled this unique preservation. This site is celebrated for its well-preserved fossils ...
SIERRA MADRE, Calif. (KABC) -- A mountain of mud flowed down Woodland Drive in Sierra Madre during this week's storm, so it's no surprise the cleanup has been a multi-day undertaking. Dozens of ...