Olivine diogenites - The mantle of the eucrite parent body

Two olivine-rich Antarctic diogenites (ALH A77256 and ALH 84001) of the howardite-eucrite-diogenite (HED) meteorite association have olivine/pyroxene ratios similar to normative ratios in devolatilized ordinary chondrites. Based on chemical data and petrological analysis, these meteorites represent...

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Main Authors: Sack, Richard O., Azeredo, William J., Lipschutz, Michael E.
Format: Other/Unknown Material
Language:unknown
Published: 1991
Subjects:
91
Antarctic
Antarc*
Online Access:http://ntrs.nasa.gov/search.jsp?R=19910050068
id ftnasantrs:oai:casi.ntrs.nasa.gov:19910050068
record_format openpolar
spelling ftnasantrs:oai:casi.ntrs.nasa.gov:19910050068 2023-05-15T13:53:23+02:00 Olivine diogenites - The mantle of the eucrite parent body Sack, Richard O. Azeredo, William J. Lipschutz, Michael E. Unclassified, Unlimited, Publicly available Apr 1, 1991 http://ntrs.nasa.gov/search.jsp?R=19910050068 unknown http://ntrs.nasa.gov/search.jsp?R=19910050068 Accession ID: 91A34691 Copyright Other Sources 91 Geochimica et Cosmochimica Acta; 55; 1111-112 1991 ftnasantrs 2012-02-15T19:00:43Z Two olivine-rich Antarctic diogenites (ALH A77256 and ALH 84001) of the howardite-eucrite-diogenite (HED) meteorite association have olivine/pyroxene ratios similar to normative ratios in devolatilized ordinary chondrites. Based on chemical data and petrological analysis, these meteorites represent the residuum of partial melting of the mantle in the eucrite parent body (EPB). Mineral assemblages in these olivine-rich diogenites record a continuum in thermal histories from initial partial melting (1150-1200 C) to subsolidus reequilibration (795 + or - 55 C). The small number of olivine-rich diogenites known hints that only the outer portion of the EPB has been sampled. Other/Unknown Material Antarc* Antarctic NASA Technical Reports Server (NTRS) Antarctic
institution Open Polar
collection NASA Technical Reports Server (NTRS)
op_collection_id ftnasantrs
language unknown
topic 91
spellingShingle 91
Sack, Richard O.
Azeredo, William J.
Lipschutz, Michael E.
Olivine diogenites - The mantle of the eucrite parent body
topic_facet 91
description Two olivine-rich Antarctic diogenites (ALH A77256 and ALH 84001) of the howardite-eucrite-diogenite (HED) meteorite association have olivine/pyroxene ratios similar to normative ratios in devolatilized ordinary chondrites. Based on chemical data and petrological analysis, these meteorites represent the residuum of partial melting of the mantle in the eucrite parent body (EPB). Mineral assemblages in these olivine-rich diogenites record a continuum in thermal histories from initial partial melting (1150-1200 C) to subsolidus reequilibration (795 + or - 55 C). The small number of olivine-rich diogenites known hints that only the outer portion of the EPB has been sampled.
format Other/Unknown Material
author Sack, Richard O.
Azeredo, William J.
Lipschutz, Michael E.
author_facet Sack, Richard O.
Azeredo, William J.
Lipschutz, Michael E.
author_sort Sack, Richard O.
title Olivine diogenites - The mantle of the eucrite parent body
title_short Olivine diogenites - The mantle of the eucrite parent body
title_full Olivine diogenites - The mantle of the eucrite parent body
title_fullStr Olivine diogenites - The mantle of the eucrite parent body
title_full_unstemmed Olivine diogenites - The mantle of the eucrite parent body
title_sort olivine diogenites - the mantle of the eucrite parent body
publishDate 1991
url http://ntrs.nasa.gov/search.jsp?R=19910050068
op_coverage Unclassified, Unlimited, Publicly available
geographic Antarctic
geographic_facet Antarctic
genre Antarc*
Antarctic
genre_facet Antarc*
Antarctic
op_source Other Sources
op_relation http://ntrs.nasa.gov/search.jsp?R=19910050068
Accession ID: 91A34691
op_rights Copyright
_version_ 1766258432254410752

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