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 20 of 27754
Trace Element Distribution Between Olivine and Kirschsteinite in Angra Dos Reis
Offline Availability: Go to Request Form
Author and Affiliation:
Fittipaldo, M. M.(New Mexico Univ., Inst. of Meteoritics, Albuquerque, NM, United States)
Jones, R. H.(New Mexico Univ., Inst. of Meteoritics, Albuquerque, NM, United States)
Shearer, C. K.(New Mexico Univ., Inst. of Meteoritics, Albuquerque, NM, United States)
Abstract: The angrites are a small and enigmatic group of basaltic achondrites that possess unique mineralogical and chemical properties. The dominant mineralogy of the seven angrite members (Angra dos Reis, LEW 86010, LEW 87051, Asuka 881371, Sahara 99555, D Orbigny, and a new Moroccan member) is fassaite, olivine, and plagioclase. Angrites display a wide range of thermal histories, with Angra dos Reis (AdoR) exhibiting a cooling history different from that of the rapidly cooled members and from LEW86010, a more slowly cooled member. AdoR could represent either a cumulate or a porphyritic igneous rock that was later altered by metamorphism. We are re-examining the thermal history of AdoR in light of the more recently described angrite members. Our emphasis is a trace element study of low-Ca olivine, which we refer to as olivine, and high-Ca olivine, which we refer to as kirschsteinite, in AdoR.
Publication Date: Mar 01, 2003
Document ID:
20030111057
(Acquired Dec 13, 2003)
Subject Category: LUNAR AND PLANETARY SCIENCE AND EXPLORATION
Document Type: Conference Paper
Publication Information: Lunar and Planetary Science XXXIV; (LPI-Contrib-1156); (SEE 20030110578)
Contract/Grant/Task Num: NAG5-9463
Financial Sponsor: New Mexico Univ.; Inst. of Meteoritics; Albuquerque, NM, United States
NASA Goddard Space Flight Center; Greenbelt, MD, United States
Organization Source: New Mexico Univ.; Inst. of Meteoritics; Albuquerque, NM, United States
Description: 2p; In English; Original contains color and black and white illustrations
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution under U.S. Government purpose rights; under cooperative agreement NCC5-679
NASA Terms: OLIVINE; TRACE ELEMENTS; METEORITIC COMPOSITION; METAMORPHISM (GEOLOGY); ACHONDRITES; BASALT; IGNEOUS ROCKS; METEORITES; MINERALOGY
› Back to Top
Find Similar Records
NASA Logo, External Link
NASA Official: Gerald Steeman
Site Curator: STI Program
Last Modified: September 30, 2017
Contact Us