header
  MetSoc Home            Publications            Search Meteorites  
Search the Meteoritical Bulletin Database
Last update: 21 Jul 2017
Search for: Search type: Search limits: Display: Publication:
Names
Text help
Places
Classes
Contains
Starts with
Exact
Sounds like
NonAntarctic
Falls
What's new
  in the last:
Limit to approved meteorite names
Search text:  
Los Vientos 171
Basic information Name: Los Vientos 171
     This is an OFFICIAL meteorite name.
Abbreviation: LoV 171
Observed fall: No
Year found: 2016
Country: Chile
Mass:help 20.23 kg
Classification
  history:
Recommended:  LL3.1    [explanation]

This is 1 of 7 approved meteorites classified as LL3.1.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 10 May 2017
Writeuphelp
Writeup from MB 106:

Los Vientos 171 (LoV 171)        24°41’S, 69°46’W

Antofagasta, Chile

Find: 2016 Nov

Classification: Ordinary chondrite (LL3.1)

History: Five stones were found within about 50 m, lying at the surface in the Atacama desert.

Physical characteristics: Fully crusted stones. Cut surface reveals a gray interior with well delineated chondrules up to several mm.

Petrography: Closely packed chondrules with mean apparent diameter 630±280 μm (N=45). FeNi metal and troilite show almost no weathering.

Geochemistry: Olivine Fa16.6±7.9 (Fa1.0-27.7), PMD 40%, N=9. Cr2O3 in ferroan olivine is 0.13±0.1 wt%. Orthopyroxene Fs6.4±6.3Wo2.5±2.5 (Fs1.6-20.2), N=6. Magnetic susceptiblity log χ (× 10-9 m3/kg) = 4.51. Saturation magnetization is 1.68 Am2/kg, in the range of LL3 falls (5.28±2.02 Am2/kg, N=5) and well below the range of L3 falls (21.7±3.1 Am2/kg, N=3), see Gattacceca et al. 2014. Based on the structural order of the polyaromatic matter assessed by Raman spectroscopy (Lydie Bonal, IPAG), this meteorite appears to be more metamorphosed than Semarkona (LL3.0) and slightly less metamorphosed than Bishunpur (LL3.1). The Raman spectroscopy parameters of interest are FWHM-D (cm-1)=191.4 ± 8.3, ID/IG= 1.04 ±0.02 (see Bonal et al., 2016, figure 7).

Classification: LL3.1. Sub-type based structural order of polyaromatic organic matter assessed by Raman spectroscopy. LL versus L classification based on saturation magnetization.

Specimens: Type specimen and polished sections at CEREGE. Main mass with ArtMet collection, Poland.

Bibliography:
  • Bonal L., Quirico E., Flandinet L., and Montagnac G. (2016) Thermal history of type 3 chondrites from the Antarctic meteorite collection determined by Raman spectroscopy of their polyaromatic carbonaceous matter. Geochim. Cosmochim. Acta 189 312-337. (link)
  • Gattacceca J., Suavet C., Rochette P., Weiss B.P., Winklhofer M., Uehara M. Friedrich J.M. (2014) Metal phases in ordinary chondrites: magnetic hysteresis properties and implications for thermal history. Meteorit. Planet. Sci. 49 652-676/ (link)
Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Origin or pseudonym:deflation surface
Date:2016 Nov
Latitude:24°41'S
Longitude:69°46'W
Mass (g):20225
Pieces:5
Class:LL3.1
Weathering grade:W0/1
Fayalite (mol%):16.6±7.9 (N=9)
Ferrosilite (mol%):6.4±6.3 (N=6)
Wollastonite (mol%):2.5±2.5
Magnetic suscept.:4.51
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):29.5
Type spec location:CEREGE
Main mass:ArtMet collection, Poland
Finder:anonymous
Comments:work name LM16; submitted by Jérôme Gattacceca
Institutions
   and collections
CEREGE: CEREGE BP 80 Avenue Philibert, Europole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 9 Mar 2016)
IPAG: Institut de Planétologie et d’Astrophysique de Grenoble 414, Rue de la Piscine Domaine Universitaire 38400 St-Martin d’Hères , France (institutional address; updated 1 Aug 2013)
ARTMET: Meteorites and Art UL. Baczynskiego 2 45-317 Opole, Poland (private address; updated 7 Apr 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 106, in preparation (2017)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Chile
Coordinates:
     Recommended::   (24° 41'S, 69° 46'W)

Statistics:
     This is 1 of 1010 approved meteorites from Antofagasta, Chile (plus 1 impact crater)
     This is 1 of 1035 approved meteorites from Chile (plus 9 unapproved names) (plus 1 impact crater)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page