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Brian Harold Mason Papers, 1920s-1992

view Brian Harold Mason Papers, 1920s-1992 digital asset number 1
Creator:
Mason, Brian Harold 1917-
Subject:
Mason, Brian Harold 1917-
Goldschmidt, V. M (Victor Moritz) 1888-1947
National Museum of Natural History (U.S.) Division of Meteorites
National Museum of Natural History (U.S.) Department of Mineral Sciences
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
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.
Topic:
Allende meteorite
Meteorites
Mineralogy
Mineralogists
Local number:
SIA Acc. 10-167
Data Source:
Smithsonian Institution Archives

Brian Harold Mason Papers, 1953-2001

view Brian Harold Mason Papers, 1953-2001 digital asset number 1
Creator:
Mason, Brian Harold 1917-
Subject:
Goldschmidt, V. M (Victor Moritz) 1888-1947
Mason, Brian Harold 1917-
United States National Aeronautics and Space Administration
National Science Foundation (U.S.)
National Museum of Natural History (U.S.) Department 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
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-National Aeronautics and Space Administration (NASA)-National Science Foundation 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.
Topic:
Allende meteorite
Mineralogy
Meteorites
Mineralogists
Petrology
Cosmochemistry
Local number:
SIA Acc. 02-194
Data Source:
Smithsonian Institution Archives

Allende Meteorite Fall, February 8, 1969

Subject:
Clarke, Roy S., Jr
Mason, Brian Harold 1917-
National Aeronautics and Space Administration
National Museum of Natural History (U.S.)
Smithsonian Astrophysical Observatory
American Smelting and Refining Company
Place:
Mexico
Chihuahua (Chihuahua, Mexico)
Date:
February 8, 1969
Category:
Chronology of Smithsonian History
Notes:
"Allende Meteorite." Smithsonian Institution. Smithsonian National Museum of Natural History. Web. 24 June 2013.
Smithsonian Institution Archives, Record Unit 9622, Clarke, Roy S., Jr. interviewee, National Museum of Natural History Centennial Oral History Interviews, Roy S. Clarke Jr. Interview 1, 17 Aug. 2010.
Smithsonian Institution Archives, Record Unit 9622, Clarke, Roy S., Jr. interviewee, National Museum of Natural History Centennial Oral History Interviews, Roy S. Clarke Jr. Interview 2, 7 Sept. 2010.
Clarke, Roy S., Jr.. The Allende, Mexico, Meteorite Shower. City of Washington: Smithsonian Institution Press, 1970.
Summary:
The Allende Meteorite fall, the most important stoney meteorite shower on record, was first seen in the early morning of February 8, 1969 as a fireball descending towards the southern Chihuahuan village of Pueblito de Allende, Mexico, approximately 340 miles south of El Paso, Texas. Exploding into pieces during its journey through the atmosphere, the meteorite fell over one of the largest strewn fields (the meteorite's dispersal area) ever recorded, extending over 200 square miles (300 km). Within five days of the fall, Smithsonian scientists Brian H. Mason and Roy S. Clarke, Jr., had arrived in Mexico and were collecting specimens with the help of local schoolchildren who agreed to look for meteorites on the condition that they would be provided with soft drinks. This motley crew was able to collect over a ton of material, with specimens ranging from as small as one gram to 242 pounds (110kg). The scientists were also aided by ASARCO (American Smelting and Refining Company) Mexicana, Parral, a mining company located close by.
The collected specimens were studied in various institutions, including with the new state-of-the-art equipment that NASA had acquired to study the lunar materials it was waiting to receive from the Apollo 11 mission. At the Smithsonian, scientists from both the National Museum of Natural History and the Smithsonian Astrophysical Observatory became involved in the analysis. During this examination, it was discovered that the Allende meteorite contained calcium-aluminum inclusions which represent some of the first solid matter to form in the solar system. Consequently the meteorite, a rare Type III carbonaceous chondrite, has been invaluable to scientists studying the formation of the early solar system.
The Allende meteorite has been important in the development of scientific fields, with its study resulting in meteoritics becoming an integral part of earth science as well as resulting in the birth of the new science of cosmo-chemistry, the intersection of geology, planetary science, astronomy, and astrophysics.
Contact information:
Institutional History Division, Smithsonian Institution Archives, 600 Maryland Avenue, SW, Washington, D.C. 20024-2520, SIHistory@si.edu
Topic:
Meteorites
Meteoritics
Meteorologists
Meteors
Collectors and collecting
Specimens
Allende meteorite
Data Source:
Smithsonian Archives - History Div

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
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.
Topic:
Allende meteorite
Call number:
QE1 .S66 no.25
QB756.A43 1982
QE1.S66 no.25
QB756.A43 1982
Data Source:
Smithsonian Libraries

Allende

view Allende digital asset number 1
Weight:
604.46g
Place:
Mexico, North America
Accession Date:
April 3 1969
Specimen Count:
1
Record Last Modified:
20 Apr 2016
Accession Number:
283305
USNM Number:
3530
See more items in:
Meteorites
Meteorites
Inventory
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Weight:
2350.3g
Place:
Mexico, North America
Accession Date:
April 3 1969
Specimen Count:
1
Record Last Modified:
20 Apr 2016
Accession Number:
283588
USNM Number:
3493
See more items in:
Meteorites
Meteorites
Inventory
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
20 Dec 2015
Accession Number:
2048324
Other Numbers:
Caltech Number : Allende 12 Section D
USNM Number:
7554
See more items in:
Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Accession Date:
April 3 1969
Specimen Count:
1
Record Last Modified:
18 Dec 2015
Accession Number:
283588
USNM Number:
3529
See more items in:
Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Accession Date:
April 3 1969
Specimen Count:
1
Record Last Modified:
18 Dec 2015
Accession Number:
283588
USNM Number:
3510
See more items in:
Meteorites
Meteorites
Polished Thin Section
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
Accession Number:
292904
USNM Number:
4014
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
Accession Number:
292904
USNM Number:
5031
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
Accession Number:
292904
USNM Number:
3876
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
Accession Number:
292904
USNM Number:
4744
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
Accession Number:
285484
USNM Number:
3643
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
Accession Number:
292904
USNM Number:
3975
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
USNM Number:
4014
See more items in:
Meteorites
Meteorites
Inventory
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
USNM Number:
7333
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
USNM Number:
7333
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
USNM Number:
7333
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

Allende

view Allende digital asset number 1
Place:
Mexico, North America
Specimen Count:
1
Record Last Modified:
2 Aug 2016
USNM Number:
7333
See more items in:
Meteorites
Meteorites
Polished Thin Section
Digital Collection: Micrographs
Mineral Sciences
Data Source:
NMNH - Mineral Sciences Dept.
Additional Online Media:

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