11 December, 1999
Fumaroles Part 2 of 2
When a volcano is studied, one of things scientists want to know is how much, and what, gas(es) are coming from the earth’s interior. Mt Erebus is no exception. Jean Wardell has a 2 part job to find the answer to this question. First she works on the emissions which come directly from the crater. Second she must hunt down the ice cones all around the mountain to determined the amount of degassing the volcano does through them. Adding these two amounts will give the total output of the volcano. In the Dec 10 journal, you saw many of these ice cones formed when the gases find their way to the earth’s surface and freeze in the Antarctic cold. The pictures below will show how she gets into the fumaroles to test the gases and what they look like on the inside. Two rock climbers, Chas Day and Forrest McCarthy, are on the mountain to help her and are hired as field safety personal here in Antarctica.
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