Petrology and pairing of mesosiderites from Victoria Land, Antarctica
Petrological data on mesosiderites from Reckling Peak (RKP) and Allan Hills (ALH), Antarctica, are presented. The results suggest that the Allan Hills mesosiderites A77219, A81059, and A81098 are probably paired (being of similar texture, modes, and mineral composition), and ALHA 81208 is, most like...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19880067952 2023-05-15T13:41:01+02:00 Petrology and pairing of mesosiderites from Victoria Land, Antarctica Hewins, Roger H. Unclassified, Unlimited, Publicly available Jun 1, 1988 http://ntrs.nasa.gov/search.jsp?R=19880067952 unknown http://ntrs.nasa.gov/search.jsp?R=19880067952 Accession ID: 88A55179 Copyright Other Sources 91 Meteoritics; 23; 123-129 1988 ftnasantrs 2012-02-15T17:41:47Z Petrological data on mesosiderites from Reckling Peak (RKP) and Allan Hills (ALH), Antarctica, are presented. The results suggest that the Allan Hills mesosiderites A77219, A81059, and A81098 are probably paired (being of similar texture, modes, and mineral composition), and ALHA 81208 is, most likely, a clast from one of these mesosiderites. RKPA 80258 is a weakly poikilitic plagioclase-poor mesosiderite, completely different from ALHA 77219, 81059, and 81098. On the other hand, RKPA 79015, 80229, 80246, and 80263 are very similar, belonging to subgroup C diogenitic mesosiderites. These mesosiderites contain orthopyroxene and recrystallized orthopyroxenite clasts in a metal-troilite matrix. The silicate fraction of mesosiderites ranged from diogenitic (RKPA 79015) to analogous to polymict eurcrite (Dyarrl Island). On the basis of petrologic data, the mesosiderite subdivision scheme was amended, making it possible to classify the formerly 'anomalous' RKPA 79015. Other/Unknown Material Antarc* Antarctica Victoria Land NASA Technical Reports Server (NTRS) Victoria Land Allan Hills ENVELOPE(159.667,159.667,-76.717,-76.717) Reckling Peak ENVELOPE(159.250,159.250,-76.267,-76.267) |
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Open Polar |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
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91 |
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91 Hewins, Roger H. Petrology and pairing of mesosiderites from Victoria Land, Antarctica |
topic_facet |
91 |
description |
Petrological data on mesosiderites from Reckling Peak (RKP) and Allan Hills (ALH), Antarctica, are presented. The results suggest that the Allan Hills mesosiderites A77219, A81059, and A81098 are probably paired (being of similar texture, modes, and mineral composition), and ALHA 81208 is, most likely, a clast from one of these mesosiderites. RKPA 80258 is a weakly poikilitic plagioclase-poor mesosiderite, completely different from ALHA 77219, 81059, and 81098. On the other hand, RKPA 79015, 80229, 80246, and 80263 are very similar, belonging to subgroup C diogenitic mesosiderites. These mesosiderites contain orthopyroxene and recrystallized orthopyroxenite clasts in a metal-troilite matrix. The silicate fraction of mesosiderites ranged from diogenitic (RKPA 79015) to analogous to polymict eurcrite (Dyarrl Island). On the basis of petrologic data, the mesosiderite subdivision scheme was amended, making it possible to classify the formerly 'anomalous' RKPA 79015. |
format |
Other/Unknown Material |
author |
Hewins, Roger H. |
author_facet |
Hewins, Roger H. |
author_sort |
Hewins, Roger H. |
title |
Petrology and pairing of mesosiderites from Victoria Land, Antarctica |
title_short |
Petrology and pairing of mesosiderites from Victoria Land, Antarctica |
title_full |
Petrology and pairing of mesosiderites from Victoria Land, Antarctica |
title_fullStr |
Petrology and pairing of mesosiderites from Victoria Land, Antarctica |
title_full_unstemmed |
Petrology and pairing of mesosiderites from Victoria Land, Antarctica |
title_sort |
petrology and pairing of mesosiderites from victoria land, antarctica |
publishDate |
1988 |
url |
http://ntrs.nasa.gov/search.jsp?R=19880067952 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(159.667,159.667,-76.717,-76.717) ENVELOPE(159.250,159.250,-76.267,-76.267) |
geographic |
Victoria Land Allan Hills Reckling Peak |
geographic_facet |
Victoria Land Allan Hills Reckling Peak |
genre |
Antarc* Antarctica Victoria Land |
genre_facet |
Antarc* Antarctica Victoria Land |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19880067952 Accession ID: 88A55179 |
op_rights |
Copyright |
_version_ |
1766144452886265856 |