Geo 730: September 11, Day 619: Liesegang 1

Liesegang rings are, as we euphemistically say in the geo biz, "not well understood." In other words, we have some clues, but no one has managed to put the details together for a clear picture of how these are formed. No matter, they're fun and pretty; their mystery only adds to their appeal.

This spot is maybe another 50 yards farther down the logging road past the bare area of the last two photos of the vein in the cut. Past that bare area, there's a copse of Douglas firs; as those start to peter out into the next bare area, look for this colorful exposure on the wall of the hillside above the road.

Photo unaltered. June 14, 2014. FlashEarth Location.