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Joint Belgium-Japan search for Antarctic meteorites in the 2010-2011 field season.
Boekbijdrage - Boekhoofdstuk Conferentiebijdrage
Since the 2009-2010 field season in Antarctica, Belgium and
Japan have jointly conducted searches for meteorites in the Sør
Rondane Mountains (SRM), East Antarctica [1]. A total of 635
meteorite specimens were found in the Mt. Balchen area (approximately
72.0° S, 27.5° E), which is located at the eastern end
of the SRM, in the 2009-2010 field season [2]. Here we report
the search for meteorites hosted by the Belgian Antarctic Research
Expedition (BELARE) in the Nansen Icefield (approximately
72.7° S, 24.2° E) that is located on the south of the SRM
in the 2010-2011 field season.
The 29th Japanese Antarctic Research Expedition (JARE)
conducted systematic searches for meteorites on the Nansen Icefield
and found about 1400 meteorite specimens in the 1988-
1989 field season [3]. The meteorites were termed Asuka-88 meteorites,
which include rare types such as the Asuka-881371 angritic
achondrite and the Asuka-881757 gabbroic mare basalt. A
meteorite search team consisting of three Belgians and two Japanese
performed systematic meteorite searches in the Nansen Icefield,
where the meteorite search had not been carried out since
1989, from January 1st to 23rd, 2011, known as the SAMBA
(Search for Antarctic Meteorites: Belgian Contribution) mission
[4]. A total of 218 meteorites and meteorite fragments were collected
during this period. Most of the collected meteorites are
ordinary chondrites, but at least two achondrites were recognized
in the field. The meteorites were individually put in clean polyethylene
bags in the field and kept frozen until they were put in a
freezer at the National Institute of Polar Research (NIPR), Japan.
The position of each meteorite was recorded by GPS. The initial
processing (weighing, measuring, photography, naming and brief
description) and classification will be carried out at the NIPR.
The meteorites collected by the joint Belgium-Japan team in the
2010-2011 field season will be termed Asuka 10 meteorites.
Only a third of the Nansen Icefield was surveyed in 2010/2011,
thus JARE and BELARE are planning to cover the rest of the
area in 2012/2013.
The meteorite search was performed with the support of the
Belgian Science Policy (BELSPO), the International Polar Foundation
(IPF) and the Belgian Defense.
References: [1] Kaiden H. et al. 2010. Meteoritics & Planetary
Science 45:A100. [2] Kaiden H. et al. 2010. Antarctic Meteorites
XXXIII:34-35. [3] Naraoka H. et al. 1990. Antarctic Records
34:216-224. [4] Claeys Ph. et al. Antarctic Meteorites
XXXIII:5-6.
Japan have jointly conducted searches for meteorites in the Sør
Rondane Mountains (SRM), East Antarctica [1]. A total of 635
meteorite specimens were found in the Mt. Balchen area (approximately
72.0° S, 27.5° E), which is located at the eastern end
of the SRM, in the 2009-2010 field season [2]. Here we report
the search for meteorites hosted by the Belgian Antarctic Research
Expedition (BELARE) in the Nansen Icefield (approximately
72.7° S, 24.2° E) that is located on the south of the SRM
in the 2010-2011 field season.
The 29th Japanese Antarctic Research Expedition (JARE)
conducted systematic searches for meteorites on the Nansen Icefield
and found about 1400 meteorite specimens in the 1988-
1989 field season [3]. The meteorites were termed Asuka-88 meteorites,
which include rare types such as the Asuka-881371 angritic
achondrite and the Asuka-881757 gabbroic mare basalt. A
meteorite search team consisting of three Belgians and two Japanese
performed systematic meteorite searches in the Nansen Icefield,
where the meteorite search had not been carried out since
1989, from January 1st to 23rd, 2011, known as the SAMBA
(Search for Antarctic Meteorites: Belgian Contribution) mission
[4]. A total of 218 meteorites and meteorite fragments were collected
during this period. Most of the collected meteorites are
ordinary chondrites, but at least two achondrites were recognized
in the field. The meteorites were individually put in clean polyethylene
bags in the field and kept frozen until they were put in a
freezer at the National Institute of Polar Research (NIPR), Japan.
The position of each meteorite was recorded by GPS. The initial
processing (weighing, measuring, photography, naming and brief
description) and classification will be carried out at the NIPR.
The meteorites collected by the joint Belgium-Japan team in the
2010-2011 field season will be termed Asuka 10 meteorites.
Only a third of the Nansen Icefield was surveyed in 2010/2011,
thus JARE and BELARE are planning to cover the rest of the
area in 2012/2013.
The meteorite search was performed with the support of the
Belgian Science Policy (BELSPO), the International Polar Foundation
(IPF) and the Belgian Defense.
References: [1] Kaiden H. et al. 2010. Meteoritics & Planetary
Science 45:A100. [2] Kaiden H. et al. 2010. Antarctic Meteorites
XXXIII:34-35. [3] Naraoka H. et al. 1990. Antarctic Records
34:216-224. [4] Claeys Ph. et al. Antarctic Meteorites
XXXIII:5-6.
Boek: 74th Annual Meteoritical Society Meeting. Abstract 5415
Series: 74th Annual Meteoritical Society Meeting. Abstract 5415
Volume: 74
Jaar van publicatie:2011
Trefwoorden:meteorite