The Solid Earth - Chapter 3: Hot Springs and Geysers Flashcards
the water in _____ _____ is 10-15 degrees warmer than the annual air temp for the localities where they occur
hot springs
What is the basic process for groundwater becoming a hot spring? (3 steps)
Circulates at great depth
Becomes heated
Rises to surface
The source of heat for most hot springs is cooling _____ rocks
igneous
Geysers occur where extensive underground chambers exist within hot igneous rocks. As relatively cool groundwater enters the ____, it is heated
chambers
The heating of the water causes it to _____ with the result that some flows out at the surface
expand
The reduced pressure associated with the flow at surface reduces the pressure on remaining water which lowers the _____ ____ and causes water to turn to steam
boiling point
Why does groundwater from hot springs and geysers usually contain more material in solution?
Hot water is a more effective dissolver than cold
The name for the deposits from hot springs when the water contains dissolved silica
geyserite
a form of calcite that is deposited at hot springs in limestone regions
traverite