Meteoritical Bulletin: Entry for Sierra Gorda 043

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Sierra Gorda 043

Basic information

Name: Sierra Gorda 043
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2018
Country: Chile
Mass: 94 g

Classification
history:

Meteoritical Bulletin:	MB 109	(2020)	L5-melt breccia
Recommended:			L5-melt breccia [explanation]

This is 1 of 42 approved meteorites classified as L5-melt breccia. [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 28 Nov 2020

Writeup

Writeup from MB 109:

Sierra Gorda 043 22°30.15’S, 69°3.22’W

Antofagasta, Chile

Find: 13 Oct 2018

Classification: Ordinary chondrite (L5, melt breccia)

Petrography: The meteorite has brecciated texture with angular clasts 0.5-15 mm in size in a partly transparent, glass-rich melt rock with metal-sulfide blebs. The clasts are of petrologic type 5. Olivine in the clasts shows weak mosaicism and planar fractures.

Data from:
  MB109
  Table 0
  Line 0:

State/Prov/County:	Antofagasta
Date:	13 Oct 2018
Latitude:	22°30.15'S
Longitude:	69°3.22'W
Mass (g):	94
Pieces:	1
Class:	L5-melt breccia
Shock stage:	S4
Weathering grade:	W1
Fayalite (mol%):	23.1±0.2 (N=12)
Ferrosilite (mol%):	19.5±0.3 (N=13)
Wollastonite (mol%):	2.7±0.3 (N=13)
Classifier:	Ivanova M. A., Vernad
Type spec mass (g):	21.3
Type spec location:	Vernad
Main mass:	Mr. M. Nepomiluev, [email protected]
Finder:	Mr. M. Nepomiluev
Comments:	Field name is M3-10; analyst T. Kryachko (Technograd, Moscow); submitted by Lorenz C.A., Vernad

Institutions
and collections

Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 109, in preparation (2020)

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Geography:

Chile

Coordinates:
Recommended::	(22° 30' 9"S, 69° 3' 13"W)

Statistics:
This is 1 of 3442 approved meteorites from Antofagasta, Chile (plus 12 unapproved names) (plus 1 impact crater)
This is 1 of 3471 approved meteorites from Chile (plus 13 unapproved names) (plus 1 impact crater)

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Revision
history:

This lists important revisions made to data for this record.

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