This is your chance to ask GeoMan
any earth or space science question you want. I'll do my best to respond
to as many as I can as soon as I can, but... the reality of my life is
that there are many calls and duties, and sometimes the things I enjoy
the most are nowhere near to the top of the list. If you don't get a response,
it is surely due to a lack of time on my part, and not a lack of interest
- the best thing to do is to wait a day or so and send it again. I'll
try to answer as many questions as possible on-line so others can benefit
from your interest.