Meteoritical Bulletin: Entry for LaPaz Icefield 03930

MetSoc Home Publications Contacts

Search the Meteoritical Bulletin Database
Last update: 24 Apr 2024
Search for:	Search type:	Search limits:	Display:	Publication:
Names Text Places Classes Years	Contains Starts with Exact Sounds like	NonAntarctic Falls Non-NWAs Has strewnfield		What's new in the last:
Include past classifications in search		Has photo	Limit to approved meteorite names
Search text:

LaPaz Icefield 03930

Basic information

Name: LaPaz Icefield 03930
This is an OFFICIAL meteorite name.
Abbreviation: LAP 03930
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 8.8 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 29(1)	(2006)	EL3
Meteoritical Bulletin:	MB 91	(2007)	EL3
Recommended:			EL3 [explanation]

This is 1 of 27 approved meteorites classified as EL3. [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 3), and Enstatite-rich meteorites

Comments:

Approved 21 Feb 2006

Writeup

Writeup from AMN 29(1):

Sample No.:	LAP 03930
Location:	LaPaz Ice Field
Field No.:	16474
Dimensions (cm):	2.0x1.9x1.0
Weight (g):	8.775
Meteorite Type:	EL3 Chondrite

Macroscopic Description: Cecilia Satterwhite
95% of the exterior has brown/black fusion crust with oxidation halos. The interior is rusty with metal and some dark gray to black areas visible. Weathered mm sized inclusions are visible.

Thin Section (,2) Description: Tim McCoy and Valerie Reynolds

Cross-Polarized Light	Plane-Polarized Light

The section shows an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Chondrules contain small amounts of olivine. Weathering is modest, with staining of some enstatite grains and minor alteration of metal and sulfides. Microprobe analyses show pyroxene is Fs_0-17, with most grains Fs_0-2. Metal contains ~0.6 wt.% Si. The meteorite is a type 3 enstatite chondrite, probably an EL3.

Data from:
  MB91
  Table 4
  Line 403:

Mass (g):	8.8
Class:	EL3
Weathering grade:	B/C
Ferrosilite (mol%):	0-17

Catalogs:

Search for this meteorite in the NASA/JSC database (U.S.):

References:

Published in Antarctic Meteorite Newsletter 29(1) (2006), JSC, Houston
Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photographs from AMN:
Photograph from unknown source	A photo is in the write-up above

Geography:

Antarctica

Coordinates:

Unknown.

Statistics:
This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

Direct link to this page