Space Nomads: Meteorites in Sky, Field, and LaboratoryLaPaz, Lincoln
Science
Space Nomads: Meteorites in Sky, Field, and Laboratory
LaPaz, Lincoln
Meteorites
After the great meteorite had been raised out of the excavation, it was
taken by truck to the University of New Mexico, in Albuquerque. There it
was put on display beside the smaller 130-pound fragment found in May.
By careful measurements, scientists determined the weight of the main
mass to be approximately 2,360 pounds—a record weight for stony
meteorites.[1] This remarkable meteorite, known as the Furnas County,
Nebraska, stone, is now a prized item in the collection of the Institute
of Meteoritics.
[Illustration: Field party proudly surrounds the Furnas stone in its
protective “armor.”]
As more and more finds were made in the area of fall, we accurately
recorded their weights and mapped their locations. In this way, we could
tell how the pieces of the meteorite had distributed themselves
according to size and weight over the oval-shaped area. The smaller and
lighter fragments were slowed down by air resistance and fell first,
while the 2,360-pound mass carried on beyond them and came to earth at
the farthest point along the direction of flight.
The staff of the Institute took many photographs of the meteorites that
were found, of the impact funnel made by the largest mass, and of the
excavation and removal of that giant stone. Some of these pictures were
published in scientific journals, others in magazine and newspaper
articles. A few of our best photographs are included in this chapter.
Although the light and sound effects that accompanied the Ussuri and
Norton falls were similar, the meteorites recovered from them were not
at all alike. The Ussuri specimens were masses of nickel-iron so
malleable that on high-speed impact with hard rock they had held
together and taken twisted and ragged shapes. But the Norton meteorites
were very fragile stony masses, many of which went to pieces either in
the air or when they struck the ground. Almost all of the recoveries
made of this very rare type of stony meteorite were fragments, not whole
specimens. They somewhat resembled pieces of a strange whitish mixture
of chalk and crystalline limestone containing tiny specks and lumps of
nickel-iron. Many specimens were covered wholly or in part by a shiny
varnish-like fusion crust, varying in color from jet black through
yellow to almost pure white.
[Illustration: The Furnas stone, protected by its “armor,” hangs
suspended from the truck crane that raised it out of its deep
“penetration funnel” in the earth.]
Public-domain text, read in full here on John Shaqi.
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