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December 14th,
2002--IMPACT CRATERS UNDER THE SEA
Guest Scientist:
Dallas Abbott
The interests of
research scientists range widely, as exemplified by today's talk by
Dr. Dallas Abbott. Much of her work has investigated the thermal
history of the earth, and the manner in which heat transport through
the crust and upper mantle influences geological processes, both
ancient and present-day. But during the course of such investigations,
she noticed evidence that the intensity of mantle plumes (e.g. Hawaii)
might be the result of meteorite and other objects crashing into the
Earth's oceans. Dr. Abbott will share some of this evidence, describe
the techniques she uses to explore these problems, and discuss where
future investigations may lead in our knowledge of Earth's past and
future.
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