header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 17 Jun 2019
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Years
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls  Non-NWAs
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Balsas
Basic information Name: Balsas
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 1974
Country: Brazil
Mass:help 41 kg
Classification
  history:
Meteoritical Bulletin:  MB 82  (1998)  IIIAB
NHM Catalogue:  5th Edition  (2000)  IIIAB
MetBase:  v. 7.1  (2006)  IIIAB
Recommended:  Iron, IIIAB    [explanation]

This is 1 of 309 approved meteorites classified as Iron, IIIAB.   [show all]
Search for other: IIIAB irons, Iron meteorites, and Metal-rich meteorites
Writeuphelp
Writeup from MB 82:

Balsas

Maranhão, Brazil

Found 1974

Iron, medium octahedrite (IIIAB)

A 41 kg iron was found in a grain field by Mr. Mario Rodrigues.  Classification and description (J. T. Wasson, UCLA; E. Zucolotto, MNRJ):  bulk Ni, 8.43 wt%; Co, 0.51 wt%; Ga, 20.9 ppm; As, 7.24 ppm; Ir, 0.397 ppm; Au, 0.927 ppm; bandwidth, 0.9 mm; shocked, with hatched kamacite; contrary to anecdotal reports that the meteorite could be an observed fall, the UCLA specimen does not show either fusion crust or remnants of a heat-altered zone.  Specimens:  main mass, ACAEE (contact E. Zucolotto, MNRJ); type specimen, 24 g, UCLA.

Institutions
   and collections
MNRJ: Museu Nacional, Quinta da Boa Vista, Rio de Janeiro, CEP 20940-040, Brazil (institutional address; updated 26 Dec 2011)
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
ACAEE: Associacao Carazinhense de Astronomica e Estudos Espacials, Caixa Postal 97, Rio Grande do Sul 99500-000, Brazil (institutional address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 82, MAPS 33, A221-A240 (1998)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Andre Moutinho Photo added 18 Jan 2017
Geography:

Brazil
Coordinates:
     Catalogue of Meteorites:   (7° 32'S, 46° 2'W)
     Recommended::   (7° 31' 53"S, 46° 2' 28"W)
Note: the NHM and MetBase coordinates are 0.9 km apart

Statistics:
     This is 1 of 2 approved meteorites from Maranhao, Brazil (plus 1 impact crater)
     This is 1 of 77 approved meteorites from Brazil (plus 6 unapproved names) (plus 7 impact craters)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page