Geysers of the Yellowstone National Park
Weed WH. 1921. Geysers of the Yellowstone National Park. Washington D.C.
1) geysers occur only in volcanic regions and in acid volcanic rocks; 2) geysers occur only along lines of drainage, on shores of lakes, or other situations where meteoric waters would naturally seek the surface; 3) geyser waters are meteoric waters which have not penetrated to great depths, but have been heated by ascending vapors; 4) the supply of heat is derived from great masses of lava slowly cooling from a state of former incandescence, heating waters, which descending to the hot rocks, ascend as highly heated vapors; 5) the intermittent spouting of geysers is due to the gradual heating of water accumulated in fissures or tubes in the rocks; and 6) the thermal activity of geyser regions is not rapidly dying out.