[meteorite-list] Met Bull Update : Oued Sfayat fall is official (May 16, 2019 - H5/Algeria), Irons, Lunar, HED, and OC's

From: Galactic Stone & Ironworks <meteoritemike_at_meteoritecentral.com>
Date: Thu, 26 Sep 2019 21:09:32 -0400
Message-ID: <CAKBPJW_xHpBk+7Yz5tvJ14dbdYr05L+28pk7qYOtNOp0EMLjsQ_at_mail.gmail.com>

Hi Listees,

There are several new approvals today, including a new fall from Algeria and

Oued Sfayat link - https://www.lpi.usra.edu/meteor/metbull.php?code=70533

All new approvals -

List of all witnessed falls since the year 2000 -

Write-up :

Oued Sfayat
26?42.433?N, 6?9.766?W
Tindouf, Algeria
Confirmed fall: 16 May 2019
Classification: Ordinary chondrite (H5)

History: On May 16, 2019, a meteor was seen by a group of shepherds at
9:00 pm (local time) at the Dakhla camp in Tindouf, Algeria. The
meteor came in at a low angle (about 30 ?) from the west and was
moving east at a relatively low velocity. A shockwave was felt as the
meteor exploded, and a booming sound was heard near the camp.
Hibballah, one of the shepherds present at the camp, went in search
alone the following morning (May 17, 2019) for pieces of potential
meteorites that may have fallen, by following the direction of the
observed meteor trail and booming sound. That same day, Hibbballah
recovered the first fragment, an 80 g freshly crusted individual in
the area of Oued Sfayat, a river valley about 70 km to the east of the
Dakhla camp. After finding this piece, Hibballah returned to the camp
to tell his father Oueld Ennajm the location where he had found the
first piece. Several days later, Oueld Ennajm and a some shepherds
traveled to Oued Sfayat and over the next few of months went searching
for more fragments. After searching between the end of May through the
middle July in a 1-2 km area at Oued Sfayat, about 6 kg of freshly
crusted individual fragments (mostly small stones of varying sizes
between 10-60 g, with the exception of a few larger-sized individuals
~600 g) were recovered by Oueld Ennajm and the shepherds. Some of
these recovered fragments were then later sold to Ahmed Chacha and
Otman Sidi Ahmed. Later on, some of the purchased fragments (2.6 kg)
were subsequently purchased by Youssef Bennani, who later sent some
small stones in for analysis.

Physical characteristics: Stones are covered by a black, fresh fusion
crust. A cut of the interior reveals a light-gray surface.

Petrography: (Daniel Sheikh, FSU) Chondrules nearly absent(400 ?m,
N=1). Recrystallized matrix with plagioclase (10 ?m). FeNi metal and
troilite present.

Geochemistry: Olivine, Fa 18.1?0.3 (N=35); orthopyroxene,
Fs16.8?0.5Wo1.1?0.1 (N=11).

Classification: Ordinary Chondrite (H5)

Specimens: 23.4 grams at UCLA; main mass with shepherds at Dakhla camp.

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Received on Thu 26 Sep 2019 09:09:32 PM PDT

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