NASA Logo, External Link
Facebook icon, External Link to NASA STI page on Facebook Twitter icon, External Link to NASA STI on Twitter YouTube icon, External Link to NASA STI Channel on YouTube RSS icon, External Link to New NASA STI RSS Feed AddThis share icon
 

Record Details

Record 53 of 1458
Studies of Brazilian meteorites. III - Origin and history of the Angra dos Reis achondrite
External Online Source: doi:10.1016/0012-821X(77)90134-0
Author and Affiliation:
Prinz, M.(American Museum of Natural History, New York, N.Y., United States)
Keil, K.(American Museum of Natural History, New York, NY, United States)
Hlava, P. F.(American Museum of Natural History, New York, NY, United States)
Berkley, J. L.(New Mexico, University, Albuquerque, N. Mex., United States)
Gomes, C. B.(Sao Paulo, Universidade, Sao Paulo, Brazil)
Curvello, W. S.(Museu Nacional, Rio de Janeiro, Brazil)
Abstract: The mineral composition of the Angra dos Reis meteorite, which fell in 1869, is described. This achondrite contains phases reported in a meteorite for the first time. Petrofabric analysis shows that fassaite has a preferred orientation and lineation, which is interpreted as being due to cumulus processes, possibly the effect of post-depositional magmatic current flow or laminar flow of a crystalline mush. The mineral chemistry indicates crystallization from a highly silica-undersaturated melt at low pressure. Several aspects of the mineral composition are discussed with reference to the implications of crystallization conditions.
Publication Date: Jun 01, 1977
Document ID:
19770056178
(Acquired Dec 01, 1995)
Accession Number: 77A39030
Subject Category: LUNAR AND PLANETARY EXPLORATION
Document Type: Journal Article
Publication Information: Earth and Planetary Science Letters; 35; 2, Ju; June 197
Publisher Information: Netherlands
Contract/Grant/Task Num: NSG-7258; NGL-32-004-064
Financial Sponsor: NASA; United States
Organization Source: American Museum of Natural History; New York, NY, United States
New Mexico Univ.; Albuquerque, NM, United States
Sao Paulo Univ.; Albuquerque, NM, Brazil
Museu Nacional; Rio de Janeiro, Brazil
Description: 14p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ACHONDRITES; METEORITIC COMPOSITION; MICROSTRUCTURE; MINERALS; BRAZIL; CRYSTALLIZATION; ELECTRON MICROSCOPES; LAMINAR FLOW; TEXTURES
Imprint And Other Notes: Earth and Planetary Science Letters, vol. 35, no. 2, June 1977, p. 317-330.
Miscellaneous Notes: p. 317-3
Availability Source: Other Sources
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: August 16, 2011
Contact Us