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- Geothermal_areas_in_Lassen_Volcanic_National_Park abstract "Several groups of hot springs and fumaroles, remnants of former volcanic activity, exist in Lassen Volcanic National Park. Most of these lie in or are closely adjacent to Mount Tehama's caldera. Bumpass Hell is the most spectacular of these, but others of importance are Sulphur Works, Little Hot Springs Valley, Boiling Springs Lake and Devil's Kitchen. In each thermal area, the highest temperature of water generally is close to the boiling temperature at the altitude of the particular spring or fumarole—198 °F (92 °C) at Bumpass Hell and 191 °F (88 °C) on the northwest flanks of Lassen Peak. Temperatures as high as 230 °F (110 °C) have been recorded in the park.Spring activity varies with water supply. Abundant water results in clear springs during early summer, but as the season progresses and the water supply decreases, springs change successively to turbid, warm pools, spattering mudpots, and finally steaming fumaroles. There are no true geysers within Lassen Volcanic National Park.Gases from hot springs are composed mostly of steam and carbon dioxide, with minor amounts of other gases. These react with the rocks around the springs to ultimately form opal if temperature and acidity are high, and kaolin if they are low. Deposits of sulfur, iron pyrite (fool's gold), quartz and other substances are also found around the springs and in their runoff channels.Solfataric alternation within the caldera of Mount Tehama covers about five square miles, much more extensive than the present hot springs basins—indicative of its former extent, and suggestive of its waning activity. It is the altered materials in the caldera which yielded most readily to the forces of erosion. Diamond Peak is a body of unaltered rock which still remains because it is more resistant.".
- Geothermal_areas_in_Lassen_Volcanic_National_Park thumbnail Lassen_hydrothermal_system.jpg?width=300.
- Geothermal_areas_in_Lassen_Volcanic_National_Park wikiPageExternalLink fs022-00.
- Geothermal_areas_in_Lassen_Volcanic_National_Park wikiPageExternalLink fs101-02.
- Geothermal_areas_in_Lassen_Volcanic_National_Park wikiPageExternalLink subnaturalfeatures39.html.
- Geothermal_areas_in_Lassen_Volcanic_National_Park wikiPageExternalLink lavo_restoration.
- Geothermal_areas_in_Lassen_Volcanic_National_Park wikiPageID "345250".
- Geothermal_areas_in_Lassen_Volcanic_National_Park wikiPageRevisionID "564407387".
- Geothermal_areas_in_Lassen_Volcanic_National_Park hasPhotoCollection Geothermal_areas_in_Lassen_Volcanic_National_Park.
- Geothermal_areas_in_Lassen_Volcanic_National_Park subject Category:Hot_springs_of_California.
- Geothermal_areas_in_Lassen_Volcanic_National_Park subject Category:Lassen_Volcanic_National_Park.
- Geothermal_areas_in_Lassen_Volcanic_National_Park subject Category:Natural_history_of_Shasta_County,_California.
- Geothermal_areas_in_Lassen_Volcanic_National_Park subject Category:Volcanism_of_California.
- Geothermal_areas_in_Lassen_Volcanic_National_Park point "40.4581 -121.5018".
- Geothermal_areas_in_Lassen_Volcanic_National_Park type GeologicalFormation109287968.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type HotSpring109305898.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type HotSpringsOfCalifornia.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type Object100002684.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type PhysicalEntity100001930.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type Spring109443453.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type YagoGeoEntity.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type YagoPermanentlyLocatedEntity.
- Geothermal_areas_in_Lassen_Volcanic_National_Park type SpatialThing.
- Geothermal_areas_in_Lassen_Volcanic_National_Park comment "Several groups of hot springs and fumaroles, remnants of former volcanic activity, exist in Lassen Volcanic National Park. Most of these lie in or are closely adjacent to Mount Tehama's caldera. Bumpass Hell is the most spectacular of these, but others of importance are Sulphur Works, Little Hot Springs Valley, Boiling Springs Lake and Devil's Kitchen.".
- Geothermal_areas_in_Lassen_Volcanic_National_Park label "Geothermal areas in Lassen Volcanic National Park".
- Geothermal_areas_in_Lassen_Volcanic_National_Park sameAs m.01ymqg.
- Geothermal_areas_in_Lassen_Volcanic_National_Park sameAs Q5548578.
- Geothermal_areas_in_Lassen_Volcanic_National_Park sameAs Q5548578.
- Geothermal_areas_in_Lassen_Volcanic_National_Park sameAs Geothermal_areas_in_Lassen_Volcanic_National_Park.
- Geothermal_areas_in_Lassen_Volcanic_National_Park lat "40.4581".
- Geothermal_areas_in_Lassen_Volcanic_National_Park long "-121.5018".
- Geothermal_areas_in_Lassen_Volcanic_National_Park wasDerivedFrom Geothermal_areas_in_Lassen_Volcanic_National_Park?oldid=564407387.
- Geothermal_areas_in_Lassen_Volcanic_National_Park depiction Lassen_hydrothermal_system.jpg.
- Geothermal_areas_in_Lassen_Volcanic_National_Park isPrimaryTopicOf Geothermal_areas_in_Lassen_Volcanic_National_Park.
