In volcanic regions, where rocks are
seamed with fissures, water trickles down till it contacts with heated rocks, and when it again emerges at the surface it may be at boiling-point. In geysers the boiling water is ejected at regular intervals. This is due to the fact that the geyser has a long tube extending deep into the hot rocks. The water which collects is heated far beyond the temperature at which water boils ordinarily, but the weight of water above for a time prevents boiling in the lower part. At last a little steam is formed, some water is shot out, and, the pressure being relieved, the water below flashes into steam instantly and shools up,' carrying the water with it.
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Bibliographic details
Auckland Star, Volume LXII, Issue 69, 23 March 1931, Page 8
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122Untitled Auckland Star, Volume LXII, Issue 69, 23 March 1931, Page 8
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Acknowledgements
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