Thuathe
The Thuathe meteorite
fell over the Thuathe Plateau in Western Lesotho, Africa on
Sunday the 21st of July, 2002 at approximately 2:49pm local
time.
Incredibly, this was just several hours before the
Kilabo meteorite fell some
5000kms away on the other side of the African continent in
Nigeria. It has since been classified as an H4-5 ordinary chondrite
with a TKW of around 35-40kg. There was a massive explosion
which continued at very high intensity for around 20-30 seconds.
It created a shock-wave which rattled windows. It was reported
that several of the stones hit buildings and objects in
villages. The largest stone was estimated to weigh around 3-4kg
but a curious village chief broke it open with a sledgehammer to
view the interior. The strewn field was quite well documented
and measures 7.4km x 1.9km. It suggests an entry angle of around
75O. I have included a map of the strewn field below
which was compiled by David Ambrose, one of the main researchers
in Lesotho. It comes from the paper, 'Know Your Campus, 88:
Meteorite Strewn Field Defined'. I have obtained a great little
100% fusion crusted
oriented specimen weighing 3.36g which you can also view below.
A 25g fully crusted specimen which is listed in the National University of Lesotho catalogue
is also shown.
Thuathe (H4) - 3.36g Oriented Individual
(Front)
Thuathe (H4) - 3.36g Oriented Individual (Back)
Thuathe (H4) - 25.80g Individual
Thuathe (H4) - 25g Individual.
National University of Lesotho
Catalogue No. #63
This specimen was found by Molahlehi Moloi,
on the Thuathe Plateau beytween Baruting & Ha Ralimo. This piece is listed in the David Ambrose
(National University of Lesotho) catalogue - a record of
recovered Thuathe meteorites, showing (where known) the mass,
dimensions, place found, finder's name, description, etc. of
each meteorite. This piece also shows two very distinct and
different fusion crusts. One is extremely smooth with deep
regmaglypts, while on the other side is quite rough and has more
sheen. It looks as if the smoother side may have been part of
the original or initial mass's outer crust before it exploded
and fragmented in the atmosphere. A scanned image of the
catalogue listing is available
here.
Thuathe Strewn Field Map
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