Most are too small to be felt but all are capable of triggering subtle as well as dramatic transformations in thermal behavior. Only time and observation will provide the answers. Geysers and hot springs may also create changes in themselves. Some Norris springs, like Cistern, dissolve rock at depth at a tremendous rate. This dissolved rock is redeposited along subterranean passageways as very hot water moves toward the surface.
Additional deposits accumulate around the surface vents.
If deposition continues, a geyser or hot spring may seal itself shut, choking off its flow of water. In turn, new features may be born as this hot, pressurized water seeks release. The flow may also find its way into nearby features, causing changes in their behavior. Alive The overflow channels of geysers and hot springs are often brightly colored with minerals and microscopic life forms. Many of Norris's features, such as Echinus Geyser and Green Dragon Spring, release acidic water.