Meteoritical Bulletin: Entry for Frontier Mountain 97045

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Frontier Mountain 97045

Basic information

Name: Frontier Mountain 97045
This is an OFFICIAL meteorite name.
Abbreviation: FRO 97045
Observed fall: No
Year found: 1997
Country: Antarctica [Collected by Programma Nazionale di Ricerche in Antartide (PNRA), Italy]
Mass: 14.9 g

Classification
history:

NHM Catalogue:	5th Edition	(2000)	Eucrite-pmict
Meteoritical Bulletin:	MB 84	(2000)	Eucrite-pmict
MetBase:	v. 7.1	(2006)	Eucrite-pmict
Recommended:			Eucrite-pmict [explanation]

This is 1 of 400 approved meteorites classified as Eucrite-pmict. [show all]
Search for other: Achondrites, Eucrites, and HED achondrites

Writeup

Writeup from MB 84:

Frontier Mountain 97045

Polymict eucrite

Fragments and lithic clasts (up to 800 μm) of plagioclase (An₉₀), exsolved pigeonite (host, En₃₈ Wo₁₁; lamellae En₃₃Wo₃₅), zoned pigeonite (En_57–42Wo₆), and secondarily silica are embedded in a fine-grained, fragmental and glassy matrix; glass spherules up to some tens of micrometers in diameter are rare; contains minor ilmenite and chromite; a single, large clast (one centimeter across) of cumulate eucrite has been observed; O isotopes are δ¹⁷O = +1.57‰, δ¹⁸O = +3.41‰, Δ¹⁷O = +0.20‰.

Data from:
  MB84
  Table 2
  Line 94:

Latitude:	72°59'19"S
Longitude:	160°24'25"E
Mass (g):	14.9
Pieces:	1
Class:	Eu "pm"
Shock stage:	S3/4
Classifier:	A. Sexton and I. A. Franchi (OU)
Comments:	see text

Plots:

O isotopes:

Institutions
and collections

OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)

Catalogs:

Search for this meteorite in the Museo Nazionale dell'Antartide database (Siena, Italy):

References:

Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)

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Geography:

Antarctica

Coordinates:
Catalogue of Meteorites:	(72° 59' 19"S, 160° 24' 25"E)
Recommended::	(72° 59' 19"S, 160° 24' 25"E)

Statistics:
This is 1 of 44248 approved meteorites from Antarctica (plus 3802 unapproved names)

Proximity search:

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