header
  MetSoc Home            Publications            Contacts  
Search the Meteoritical Bulletin Database
Last update: 13 Jun 2024
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:  
Los Vientos 486
Basic information Name: Los Vientos 486
     This is an OFFICIAL meteorite name.
Abbreviation: LoV 486
Observed fall: No
Year found: 2018
Country: Chile
Mass:help 111.1 g
Classification
  history:
Meteoritical Bulletin:  MB 112  (2023)  Enst achon
Recommended:  Enst achon    [explanation]

This is 1 of 12 approved meteorites classified as Enst achon.   [show all]
Search for other: Achondrites, Enstatite achondrites, and Enstatite-rich meteorites
Comments: Approved 30 Jul 2023
Writeuphelp
Writeup from MB 112:

Los Vientos 486 (LoV 486)        24°38’49.3’’S, 069°52’30.2’’W

Antofagasta, Chile

Find: 05 Jan 2018

Classification: Enstatite achondrite

History: Found on coarse gravel pediment.

Physical characteristics: Single individual with dark brownish fusion crust. Cut face reveals gray, heavily altered interior with large grains (up to 8 mm) and a network of altered metal, fine-grained metal and only rare metal blebs.

Petrography: Coarse-grained, achondritic rock dominated by equigranular grains of polysynthetically twinned enstatites (~80 vol%) with triple junctions and about 10 vol% of kamacite and FeOOH and various sulfides including troilite and daubréelite (both containing up to ~1 wt% of Ti). Rare and small (~5 µm) irregular plagioclase grains, interstitial between larger enstatite grains, are present (too irregular to be quantitatively determined). Fine-grained domains consisting of debris of clastic enstatite and metal occurs between the large enstatite grains. These areas are coated with thin (~5-15 µm) metal, although mostly altered to FeOOH. These domains possibility result from a strong shock event that mobilized some of the metal and sulfide.

Geochemistry: Pyroxene En98.8±0.4Wo0.7±0.1 (n=30), Oxygen isotope δ17O=2.976, δ18O=5.862, Δ17O=-0.115 (all ‰, T. di Rocco, A. Pack, UGött)

Classification: Enstatite achondrite

Data from:
  MB112
  Table 0
  Line 0:
State/Prov/County:Antofagasta
Origin or pseudonym:Gravel pediment
Date:05 Jan 2018
Latitude:24°38'49.3''S
Longitude:069°52'30.2''W
Mass (g):111.1
Pieces:1
Class:Enst achon
Shock stage:S4
Weathering grade:W3
Ferrosilite (mol%):1.2±0.4
Wollastonite (mol%):0.7±0.1
Classifier:M. Patzek K. Klemm, IfP
Type spec mass (g):23.81
Type spec location:IfP
Main mass:Andreas Koppelt
Finder:Andreas Koppelt
Comments:Submitted by K. Klemm (IfP)
Plots: O isotopes:  
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
UGött: Geowissenschaftliches Museum, Georg-August-Universität Göttingen, Goldschmidtstr. 3, 37077 Göttingen, Germany; Website (institutional address; updated 26 Nov 2020)
Catalogs:
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
Find references in NASA ADS:
Find references in Google Scholar:
Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Andreas Koppelt   
Public domain photographs:
Kerstin Klemm            
Geography:

Chile
Coordinates:
     Recommended::   (24° 38' 49"S, 69° 52' 30"W)

Statistics:
     This is 1 of 3536 approved meteorites from Antofagasta, Chile (plus 13 unapproved names) (plus 1 impact crater)
     This is 1 of 3565 approved meteorites from Chile (plus 14 unapproved names) (plus 1 impact crater)
Proximity search:
Find nearby meteorites: enter search radius (km):

Direct link to this page