Debris flows, also known as mudslides, are a common type of fast-moving landslide that tends to flow in channels. What causes landslides and debris flows. Landslides are caused by disturbances in the natural stability of a slope. They can accompany heavy rains or follow droughts, earthquakes, or volcanic eruptions. Mudslides develop when water rapidly accumulates in the ground and results in a surge of water-saturated rock, earth, and debris.
In the Fullmetal Alchemist series, the Flamel symbol is the mark depicted (along with wings and a crown above it) on the back of Edward Elric's trademark red coat and on the left shoulder of Alphonse Elric's armor body.
The image is of a traditional alchemical symbol for mercury. This is also an astrological symbol for the planet Mercury. The dragon or serpent in the background comes from early alchemical drawings and is often associated with the element.