Buckyballs from Space
Tuesday - May 2, 2000 - 7:30pm
by
Dr. Luanne Becker
Planetary Scientist
Hawaii Institute of Geophysics and Planetology
In this lecture, Dr. Becker will report on the discovery of naturally occurring fullerenes (C60 to C400) in sediment samples from the 65 million-year-old Cretaceous/Tertiary boundary layer (KTB) and in the Allende and Murchison carbonaceous chondrites. Unlike the other pure forms of carbon (diamond, and graphite), fullerenes are extractable in an organic solvent (e.g.toluene or 1,2,4 trichlorobenzene). The recognition of this unique property led to the detection and isolation of the higher fullerenes in the Kratschmer/Huffmann arc evaporated graphite soot and in the carbon material in the meteorite and impact deposits. By further exploiting the unique ability of the fullerene cage structure to encapsulate and retain noble gases, we have determined that the KTB fullerenes and the Allende and Murchison fullerenes contain trapped noble gases with ratios that can only be described as extraterrestrial in origin.
This presentation will be held at the
NASA
Pacific Regional Planetary Data Center
Sinclair Library Basement, Rm. 6
University of Hawaii at Manoa
Honolulu, Hawaii
Phone: (808) 956-3132
Email: prpdc@pgd.hawaii.edu
The Hawai`i Space Lecture Series is cosponsored by:
The Apollo Society
The Hawai`i Space Society
Hawai`i Space Grant Consortium
NASA Pacific Regional Planetary Data Center
Recent Presentations of the Hawai`i Space Lecture Series:
The Apollo Society can be reached at:
capcom@apollo-society.org
The Apollo Society
P.O. Box 61206
Honolulu, Hawai`i 96839-1206