The gamecock. (Columbia, S.C.) 1908-2006, September 22, 1978, Page Page 4, Image 4
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Still moving in?
Although most USC students have finished moving in, these
two women are still furnishing their room.
| theSutchSoGr ~ TRY US !|
crafts Artist
5UPPiiC5U Supplies
(student &* professional)
Boozer Shopping Center 772-7133
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Admiral 19" Portable Solarcolor TV S
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Professors to pre<
By Peggy Brady
O?m?cocfc Staff Writer
Two USC biology professors have beenawarded a
jrcp>uuugrani Dy me iNauonai science foundation,
NSF, to study the earth's changing climate and,
ultimately, to predict the next Ice Age.
Douglas Williams and Michael Kahn plan to study
oxygen and carbon isotope levels in shells of living
and fossilized oceanic organisms from the
Foraminifera and Pteropoda Plankton group,
microscopic shell-bearing animals.
BY STUDYING the isotopic levels of these shells
they will be able to determine water temperatures at
the time the shells were formed. From this information
th*?V will Potohlish tho nornhrr>a nf lanH
masses during the same time period.
The two biologists, assisted by Mary Ann Zimmerman,
Fred Falls and Dave Gribble, three USC
graduate students from the Marine Science Program
and Department of Geology, will collect living
plankton samples from the Bermuda Islands and the
Equatorial Atlantic regions during the next two
years.
They willdissolve the shells in a chemical formula
causing a gas to be emitted in the air. This gas will be
captured and puti through the university's newly
acquired mass spectrometer, an electron-analysis
instrument, recently purchased by USC fort 70,000
with a grant from NSF.
THE MASS SPECTROMETER will measure the
weight and mass of the gas molecules verifying the
isotopic composition oi tne sfteii.
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water temperature, and water temperature is
directly related to land-mass temperatures, the
research team hopes to obtain a vivid picture of the
earth's climate during the time periods the various
shell samples were formed.
The research team can then compare the presentday
samples to the fossilized samples and use this
comparison to determine the climate of the past.
Williams said, "The present is the key to the past.
After we have a concise understanding of these two
phases, the next step will be to get together with the
meteorologists and geologists and determine the
earth's future geological cycle. We know the earth
has been as warm as it is at present for only 100,000 of
the past million years. The remaining 900,000 years
have been virtually Ice Ages. Through our research,
we hope to predict when the next Ice Age will occur.
HOWEVER, WILLIAMS said, this might be
unusually difficult to predict because of the growing
influence of man over environment. The levels of
carbon dioxide in the air resulting from man's industrial
wastes are already producing gradual
changes in the earth's natural geological cycle.
The earth could begin to experience the glaciation
process which accompanies an ice ?ge within the next
1,000 to 10,000 years, according to scientific data.
During this period, the ice from the Arctic would
advance downward one-mile thick and would ww*
much of North America, northern Europe and Asia.
The change would be gradual, and although the
population could withstood such a gladation, man's
ability to produce crops would be drastically altered.
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