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Allende Meteorite Reference Sample

Author:
Jarosewich, Eugene
Clarke, Roy S., Jr.
Barrows, Julie N.
Object Type:
Smithsonian staff publication
Electronic document
Year:
1987
Citation:
Smithsonian Contributions to the Earth Sciences, 27: 1-49.
Abstract:
A reference material for comparative analytical studies and standardization was prepared from fresh, clean specimen material from the Allende, Mexico, Type CV3 carbonaceous chondrite fall of 8 February 1969. Fragments weighing 4 kg were powdered, homogenized, and split into 1 g and 5 g subsamples. Analytical results for a total of 74 elements were provided by 24 analysts or groups of analysts. A variety of techniques were used, and many elements were determined by more than one technique. Reports from contributors of data outline their procedures and give their results in detail. Sample homogeneity has been evaluated in terms of this body of data, and " recommended values" are suggested for 43 elements.
Doi:
10.5479/si.00810274.27.1
Data source:
Smithsonian Libraries
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Brian Harold Mason Papers, 1953-2001

Creator:
Mason, Brian Harold 1917-
Subject:
Goldschmidt, V. M (Victor Moritz) 1888-1947
National Museum of Natural History (U.S.) Dept. of Mineral Sciences
Physical description:
1 cu. ft. (1 record storage box)
Type:
Manuscripts
Collection descriptions
Color photographs
Black-and-white photographs
Place:
Antarctica
Date:
1953
1953-2001
Topic:
Allende meteorite
Meteorites
Mineralogy
Local number:
SIA Acc. 02-194
Summary:
These are the papers of Brian Harold Mason, Curator Emeritus, Meteorites Division, Department of Mineral Sciences, National Museum of Natural History. Mason curates and classifies the 700+ meteorites recovered each year from Antarctica under a joint Smithsonian-NASA-NSF program. His research focuses on the mineralogy and petrology of meteorites and cosmochemistry. Materials include correspondence, memoranda, and project files pertaining to the Allende Meteorite, Antarctic meteorites, and a biography of Victor Moritz Goldschmidt
Data Source:
Smithsonian Institution Archives
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Brian Harold Mason Papers, 1920s-1992

Creator:
Mason, Brian Harold 1917-
Subject:
Mason, Brian Harold 1917-
Goldschmidt, V. M (Victor Moritz) 1888-1947
National Museum of Natural History (U.S.) Dept. of Mineral Sciences
National Museum of Natural History (U.S.) Division of Meteorites
Physical description:
1.5 cu. ft. (1 record storage box) (1 document box)
Type:
Manuscripts
Collection descriptions
Field notes
Date:
1920
1920-1992
1920s-1992
Topic:
Allende meteorite
Meteorites
Mineralogy
Local number:
SIA Acc. 10-167
Summary:
These are the papers of Brian Harold Mason (1917-2009), Curator, Meteorites Division, Department of Mineral Sciences, National Museum of Natural History. Mason's research focused on the mineralogy and petrology of meteorites and cosmochemistry. Materials include correspondence, autobiographical information, field notebooks, research files and materials related to this biographical research on Victor Moritz Goldschmidt
Data Source:
Smithsonian Institution Archives
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Inclusions in the Allende Meteorite

Author:
Mason, Brian
Taylor, S. R.
Object Type:
Smithsonian staff publication
Electronic document
Year:
1982
Citation:
Smithsonian Contributions to the Earth Sciences, 25: 1-30.
Abstract:
Six discrete groups of inclusions have been distinguished in the Allende meteorite. Groups I, V, and VI are mostly melilite-rich chondrules, although some have been extensively altered to fine-grained aggregates; Groups II and III are mostly fine-grained aggregates made up largely of spinel and fassaite; Group IV are olivine-rich aggregates and chondrules. Each group has a distinctive trace-element pattern, most clearly shown by the rare-earth (RE) distribution pattern. Group I has an unfractionated pattern (except for a small positive Eu anomaly) at about 10-15 times chondrites; Group II has a highly fractionated pattern with depletion of the heavier lanthanides (Gd-Er) and negative Eu and positive Tm and Yb anomalies; Group III has an unfractionated pattern at about 20 times chondrites, except for negative Eu and Yb anomalies; Group IV has a relatively unfractionated pattern at 2-4 times chondrites; Group V has an unfractionated pattern at 10-20 times chondrites; Group VI has an unfractionated pattern at 10-20 times chondrites, except for positive Eu and Yb anomalies (i.e., complementary to Group III). The complex patterns of trace element distribution in these Allende inclusions indicate a complex history of formation of this meteorite from the solar nebula.
Doi:
10.5479/si.00810274.25.1
Data source:
Smithsonian Libraries
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Allende, Mexico, Meteorite Shower

Author:
Clarke, Roy S., Jr.
Jarosewich, Eugene
Mason, Brian
Nelen, Joseph
Gomez, Manuel
Hyde, Jack R.
Object Type:
Smithsonian staff publication
Electronic document
Year:
1971
Citation:
Smithsonian Contributions to the Earth Sciences, 5: 1-53.
Abstract:
The Allende meteorite fell near Parral, Chihuahua, Mexico, between 0105 and 0110 Central Standard Time on Saturday, 8 February 1969. The fireball approached from the south-southwest (S37?W), and broke up in the atmosphere, producing thousands of fusion-crusted meteoritic stones. The smallest individuals were recovered 4 km east of Rancho Polanco (26?432 N, 105?282 W), and the largest near, Rancho El Cairo (27?062 N, 105?122 W), some 50 km to the north-northeast across the Parral-Jimin?z highway. Specimen size increases generally as one moves to the north-northeast within the field, and many large specimens (5-15 kg) were recovered in and around the area enclosed by Pueblito de Allende, San Juan, Rancho Blanco, and Santa Ana. At least two tons of meteoritic stones have been recovered, with crusted individuals ranging in weight from approximately 1 g to one individual of 110 kg. Specimen shapes are mainly fragmental, due to one major disruption of the parent body, followed by minor subsequent fragmentation. Individual stones have primary and secondary fusion crust, and some fresh fracture surfaces due to late-stage breaking. A small percentage of stones shows strong ablative shaping due to oriented flight. The elongate strewnfield possibly exceeds 300 km2 in area, making Allende the largest recorded stony meteorite fall both in its areal extent and in total weight of recovered meteorites. Allende fell near the sites of find of two major iron meteorites, Morito and Chupaderos.
Chemical and mineralogical compositions establish that Allende is a Type III carbonaceous chondrite. Three distinct components can be recognized: finegrained black matrix (<"60%), chondrules (<"30%), and irregular white aggregates (<"10%). The matrix consists almost entirely of iron-rich olivine (average 50% Fe2SiO4), with minor amounts of troilite, pentlandite, and taenite, rendered opaque by dispersed carbonaceous material. Most of the chondrules are magnesium-rich, and consist of olivine (average 9% Fe2SiO4) with minor amounts of clinoenstatite and some glass; a few chondrules are rich in calcium and aluminum, and are made up largely of anorthite, gehlenite, augite, and spinel. The irregular aggregates are also rich in calcium and aluminum, and contain anorthite, gehlenite, augite, spinel, nepheline, grossular, and sodalite (the last two minerals have not previously been recorded from meteorites). Complete chemical analyses have been made of the bulk meteorite, a dark inclusion, the matrix, a chondrule concentrate, two individual chondrules, and a single aggregate.
Doi:
10.5479/si.00810274.5.1
Data source:
Smithsonian Libraries
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Inclusions in the Allende Meteorite / Brian Mason and S.R. Taylor

Author:
Mason, Brian Harold 1917-
Taylor, Stuart Ross 1925-
Smithsonian Institution
Physical description:
iii, 30 p. : ill. ; 26 cm
Type:
Electronic resources
Date:
1982
Topic:
Allende meteorite
Call number:
QE1 .S66 no.25
QB756.A43 1982
Summary:
Six discrete groups of inclusions have been distinguished in the Allende meteorite. Groups I, V, and VI are mostly melilite-rich chondrules, although some have been extensively altered to fine-grained aggregates; Groups II and III are mostly fine-grained aggregates made up largely of spinel and fassaite; Group IV are olivine-rich aggregates and chondrules. Each group has a distinctive trace-element pattern, most clearly shown by the rare-earth (RE) distribution pattern. Group I has an unfractionated pattern (except for a small positive Eu anomaly) at about 10-15 times chondrites; Group II has a highly fractionated pattern with depletion of the heavier lanthanides (Gd-Er) and negative Eu and positive Tm and Yb anomalies; Group III has an unfractionated pattern at about 20 times chondrites, except for negative Eu and Yb anomalies; Group IV has a relatively unfractionated pattern at 2-4 times chondrites; Group V has an unfractionated pattern at 10-20 times chondrites; Group VI has an unfractionated pattern at 10-20 times chondrites, except for positive Eu and Yb anomalies (i.e., complementary to Group III). The complex patterns of trace element distribution in these Allende inclusions indicate a complex history of formation of this meteorite from the solar nebula
Data Source:
Smithsonian Libraries
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Allende

Place:
Mexico, North America
USNM Number:
4014
Specimen Count:
1
Record Last Modified:
12 Nov 2014
See more items in:
Meteorites
Meteorites
Inventory
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Weight, Current:
604.46g
Place:
Mexico, North America
Accession Date:
April 3 1969
Accession Number:
283305
USNM Number:
3530
Specimen Count:
1
Record Last Modified:
7 Oct 2014
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Meteorites
Meteorites
Inventory
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Weight, Current:
2350.3g
Place:
Mexico, North America
Accession Date:
April 3 1969
Accession Number:
283588
USNM Number:
3493
Specimen Count:
1
Record Last Modified:
7 Oct 2014
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Meteorites
Meteorites
Inventory
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
Accession Number:
2048324
Other Numbers:
Caltech Number : Allende 12 Section D
USNM Number:
7554
Specimen Count:
1
Record Last Modified:
8 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
Accession Number:
292904
USNM Number:
3876
Specimen Count:
1
Record Last Modified:
8 Oct 2014
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Polished Thin Section
Mineral Sciences
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Allende

Place:
Mexico, North America
Accession Date:
April 3 1969
Accession Number:
283588
USNM Number:
3510
Specimen Count:
1
Record Last Modified:
8 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
USNM Number:
7333
Specimen Count:
1
Record Last Modified:
6 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
USNM Number:
7333
Specimen Count:
1
Record Last Modified:
6 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
USNM Number:
7333
Specimen Count:
1
Record Last Modified:
6 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
USNM Number:
7333
Specimen Count:
1
Record Last Modified:
7 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
Accession Number:
285484
USNM Number:
3658
Specimen Count:
1
Record Last Modified:
6 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Allende

Place:
Mexico, North America
Accession Number:
292904
USNM Number:
3975
Specimen Count:
1
Record Last Modified:
8 Oct 2014
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Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Additional Online Media:

Allende

Place:
Mexico, North America
Accession Number:
292904
USNM Number:
4744
Specimen Count:
1
Record Last Modified:
7 Oct 2014
See more items in:
Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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Additional Online Media:

Allende

Place:
Mexico, North America
Accession Date:
April 3 1969
Accession Number:
283588
USNM Number:
3529
Specimen Count:
1
Record Last Modified:
6 Oct 2014
See more items in:
Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
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