Making Observations
Making Observations
Here two geologists are making observations of two lava flows that are
active at the same time. The flow in the background is 'a'a, and you can
see that it is a couple meters thick and covered by broken fragments of
solid lava. The flow in the foreground is pahoehoe, has a much smoother
surface, and is only 20-30 cm thick. The geologists are standing on a
pre-existing 'a'a flow and had to move shortly after this photo was taken!
For heat protection they are wearing nomex flight suits. One has a
reflective hood and the other is wearing a knitted balaclava; neither is
very comfortable or particularly good for seeing where you are walking.
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