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Mount Baldr A76002
Basic information Name: Mount Baldr A76002
     This is an OFFICIAL meteorite name.
Abbreviation: MBRA76002
This meteorite may also be called Mount Baldr 76002 (MBR 76002) in publications.

Observed fall: No
Year found: 1976
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 13.77 kg
Classification
  history:
Meteoritical Bulletin:  MB 56  (1979)  H6
Antarctic Meteorite Newsletter:  AMN 7(1)  (1984)  H6
Meteoritical Bulletin:  MB 76  (1994)  H6
NHM Catalogue:  5th Edition  (2000)  H6
MetBase:  v. 7.1  (2006)  H6
Recommended:  H6    [explanation]

This is 1 of 5855 approved meteorites (plus 5 unapproved names) classified as H6.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Writeuphelp
Writeup from MB 56:
Warning: the following text was scanned and may contain character recognition errors. Refer to the original to be sure of accuracy.

DISCOVERY OF THE MOUNT BALDR, ANTARCTICA, STONY METEORITE

Name: MOUNT BALDR

Place of find: West of Mt. Baldr, upper Wright Valley, Victoria Land, Antarctica.

77° 35'2"S., 160° 19'35"E.

Date of find: December 15, 1976.

Class and type: Stone. Olivine-bronzite chondrite (H6).

Number of individual

specimens: 2

Total weight: 17.89 kg

Circumstances of find: Two stones were found by the U.S.-Japan Joint Expedition to Antarctica during the 1976-1977 season, on blue ice. They weighed 13.782 kg and 4.108 kg respectively and were found 700 m apart.

Source: W.A. Cassidy et al., 1977. Antarctica: a deep-freeze storehouse for meteorites. Science 198, 727-731.

Note: The smaller stone was also referred to as Mount Baldr No. 1, Mount Baldr (a), and the larger stone as Mount Baldr No. 2, Mount Baldr (b). These are synonymous, H.W. Weber and L. Schultz, 1978. Meteoritics 13, abstr.

See also: K. Yanai, 1978. First meteorites found in Victoria Land, Antarctica, December 1976 and January 1977. Mem. Nat. Inst. Polar Res., Special Issue No. 8, 51-69, and E. Olsen et al., 1978. Eleven new meteorites from Antarctica, 1976-1977. Meteoritics 13, 209-225.

Data from:
  MB76
  Table 2
  Line 4752:
Mass (g):13773
Class:H6
Weathering grade:B
Fayalite (mol%):18
Ferrosilite (mol%):16
Catalogs:
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References: Published in Meteoritical Bulletin, no. 56, Meteoritics 14, 161-175 (1979)
Published in Meteoritical Bulletin, no. 76, Meteoritics 29, 100-143 (1994)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Alan Mazur   
Collection Vincent Jacques   
Corey Kuo   
David L. Ribeca   
Dominik Stoeckli   
Wang Ziyao      
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (77° 35'S, 160° 34'E)
     Recommended::   (77° 35' 2"S, 160° 22' 25"E)
Note: the NHM and MetBase coordinates are 4.6 km apart

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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