Image courtesy of Rob Robbins / National Science Foundation
Solving Polar Fossil Mysteries
The seafloor below Antarctic sea ice is covered with living things like molluscs and echinoderms. However, core samples from the layers of sediments below the surface contain very few fossils. Were there few animals living on the Antarctic sea floor in the geologic past? Or is it just difficult for fossils to form in polar environments so there isn't a record of them? From October until December 2008 a research team explored below the sea ice to get to the bottom of this mystery. Dr. Sally E. Walker sent in virtual postcards to Windows to the Universe describing her experience with this research.
Ending the Field Season: Mapping the Distribution of Fossil Scallops from Sally Walker, December 3, 2008
Herbertson Glacier and Bay of Sails Research Sites from Sally Walker, November 10, 2008
The Research Team and Artist Gather at New Harbor and Research Begins! from Sally Walker, November 1, 2008
Creatures from Explorers Cove from Sally Walker, October 30, 2008
Meet Our Ice Divers from Sally Walker, October 25, 2008
Preparing for Research at the Field Camp from Sally Walker, October 19, 2008
McMurdo Station, Ross Island, Antarctica from Sally Walker, October 12, 2008
Arrival on Ross Island, Antarctica from Sally Walker, October 10, 2008
Flight over Southern Ocean from Sally Walker, October 10, 2008
Boarding U.S. Airforce C-17 Globemaster III from Sally Walker, October 10, 2008
Clothing Distribution Center, United States Antarctic Program from Sally Walker, October 8, 2008
Christchurch, New Zealand from Sally Walker, October 7, 2008
Last modified August 10, 2009 by Lisa Gardiner.
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