Scientists Say Fissure
Could Be a New Ocean
December 12, 2005 — By Anthony Mitchell, Associated Press
ADDIS ABABA, Ethiopia — Ethiopian,
American and European researchers have observed a fissure in a desert in
the remote northeast that could be the "birth of a new ocean basin,"
scientists said Friday.
Researchers from Britain, France, Italy and the U.S. have been observing
the 37-mile long fissure since it split open in September in the Afar
desert and estimate it will take a million years to fully form into an
ocean, said Dereje Ayalew, who leads the team of 18 scientists studying
the phenomenon.
The fissure, now 13 feet wide, formed in just three weeks after a Sept.
14 earthquake in a barren region called Boina, some 621 miles north east
of the capital, Addis Ababa, said Dereje.
"We believe we have seen the birth of a new ocean basin," said Dereje of
Addis Ababa University. "This is unprecedented in scientific history
because we usually see the split after it has happened. But here we are
watching the phenomenon."
The findings have been presented at a weeklong American Geophysical
Union meeting taking place in San Francisco that ends Friday.
"It's amazing," the BBC quoted one of the Afar researchers, Cindy
Ebinger of the Royal Holloway University of London, as saying in San
Francisco. "It's the first large event we've seen like this in a rift
zone since the advent of some of the space-based techniques we're now
using, and which give us a resolution and a detail to see what's really
going on and how the earth processes work."
The Ethiopian Afar Geophysical Lithospheric Experiment, involving
scientists from Royal Holloway and the universities of Leicester, Leeds
and Addis Ababa, is using sensitive instruments to study what is
happening deep within the earth.
Dereje said that the split is the beginning of a long process, which
will eventually lead to Ethiopia's eastern part tearing off from the
rest of Africa, a sea forming in the gap. The Afar desert is being torn
off the continent by about 0.8 inches each year.
"The crust under Afar is becoming like the crust found in the Red Sea,"
said Dereje, head of earth science at Addis Ababa University. "Once the
crust is formed you will have water because it is a low area and the
water will migrate from the Red Sea and the Gulf of Aden. It becomes a
basin."
The scientists plan to set up an observatory to watch the split and see
how it develops.
Source: Associated Press
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