Meteoritical Bulletin: Entry for LaPaz Icefield 03834

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 03834

Basic information

Name: LaPaz Icefield 03834
This is an OFFICIAL meteorite name.
Abbreviation: LAP 03834
Observed fall: No
Year found: 2003
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass: 5.8 g

Classification
history:

Antarctic Meteorite Newsletter:	AMN 29(1)	(2006)	CK3
Meteoritical Bulletin:	MB 91	(2007)	CK3
	MB 101	(2012)	R3
Antarctic Meteorite Newsletter:	AMN 36(1)	(2013)	R3
Recommended:			R3 [explanation]

This is 1 of 77 approved meteorites classified as R3. [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)

Comments:

Approved 21 Feb 2006
Revised 25 Feb 2013: Reclassified in AMN 36(1)

Writeup

Writeup from AMN 29(1):

Sample No.:	LAP 03834
Location:	LaPaz Ice Field
Field No.:	16780
Dimensions (cm):	1.8x1.5x1.5
Weight (g):	5.838
Meteorite Type:	CK3 Chondrite

Macroscopic Description: Cecilia Satterwhite
80% of the exterior of this meteorite has black fractured fusion crust. The interior is a fine grained gray matrix with some oxidation. Light gray and white mm sized inclusions are visible.

Thin Section (,2) Description: Tim McCoy

Cross-Polarized Light	Plane-Polarized Light

The section consists of well-defined (up to 1 mm) chondrules in a matrix of finer-grained silicates, sulfides and very abundant magnetite. The meteorite is little weathered, but extensively shock blackened. Olivine is Fa_4-42, with most grains Fa_30-40, and orthopyroxene is Fs_11-20. The meteorite is a CK3 chondrite.

Writeup from MB 36(1):

LaPaz Icefield 03834 (LAP 03834)

Antarctica

Found: 2003

Classification: Rumuruti chondrite (R3)

History: reclassification (announced vol. 29, no. 1): This sample was originally classified as a CK3 chondrite, but chemical analyses reveal that it (as well as MET 01149 which we reclassified a few years ago) is very close in composition (Zn/Mn vs. Al/Mn) to many other R chondrites (Isa, M. et al., 2011, LPSC abstract #1876). This information, together with the observation that there is abundant sulfide, but little to no magnetite has led us to reclassify this sample as an R3 chondrite.

Data from:
  MB91
  Table 4
  Line 317:

Mass (g):	5.8
Class:	CK3
Weathering grade:	B/C
Fayalite (mol%):	4-42
Ferrosilite (mol%):	11-20

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 Antarctic Meteorite Newsletter 36(1) (2013), 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)

Crosslinks:

This lists all records that are linked to this record and to each other.

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