Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta
A comprehensive petrologic and geochemical characterization of six paired howardites collected from the Dominion Range, Antarctica was conducted. These howardites are megaregolith samples from the asteroid 4 Vesta. Collectively, they contain an assortment of igneous rock fragments that indicate magm...
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TRACE: Tennessee Research and Creative Exchange
2016
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ftunivtennknox:oai:trace.tennessee.edu:utk_gradthes-5207 2023-05-15T13:41:47+02:00 Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta Hahn, Timothy Michael, Jr. 2016-08-01T07:00:00Z application/pdf https://trace.tennessee.edu/utk_gradthes/4040 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=5207&context=utk_gradthes unknown TRACE: Tennessee Research and Creative Exchange https://trace.tennessee.edu/utk_gradthes/4040 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=5207&context=utk_gradthes Masters Theses Geology Petrology Meteorites Vesta Asteroid text 2016 ftunivtennknox 2022-03-02T20:33:24Z A comprehensive petrologic and geochemical characterization of six paired howardites collected from the Dominion Range, Antarctica was conducted. These howardites are megaregolith samples from the asteroid 4 Vesta. Collectively, they contain an assortment of igneous rock fragments that indicate magmatic processes were capable of producing a variety of rock types; 22 chemically and texturally discrete basaltic eucrite, cumulate eucrite, and diogenite lithologies are recognized. The implications for remote-sensing observations of Vesta are discussed. The petrogenesis of two previously unrecognized lithologies are described in further detail: an evolved dacite that we propose is a residual melt from extensive crystallization, and a Mg-rich olivine-orthopyroxene and symplectite assemblage, which we interpret to represent the mantle of Vesta. Evidence suggests that complete melting of Vesta likely did not occur, and that partial melting and serial magmatism dominated the early magmatic history of Vesta. This research supports an evolving view that the differentiation and magmatic activity that occurred on Vesta was extremely complex. Text Antarc* Antarctica University of Tennessee, Knoxville: Trace Dominion Range ENVELOPE(166.500,166.500,-85.333,-85.333) |
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University of Tennessee, Knoxville: Trace |
op_collection_id |
ftunivtennknox |
language |
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topic |
Geology Petrology Meteorites Vesta Asteroid |
spellingShingle |
Geology Petrology Meteorites Vesta Asteroid Hahn, Timothy Michael, Jr. Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta |
topic_facet |
Geology Petrology Meteorites Vesta Asteroid |
description |
A comprehensive petrologic and geochemical characterization of six paired howardites collected from the Dominion Range, Antarctica was conducted. These howardites are megaregolith samples from the asteroid 4 Vesta. Collectively, they contain an assortment of igneous rock fragments that indicate magmatic processes were capable of producing a variety of rock types; 22 chemically and texturally discrete basaltic eucrite, cumulate eucrite, and diogenite lithologies are recognized. The implications for remote-sensing observations of Vesta are discussed. The petrogenesis of two previously unrecognized lithologies are described in further detail: an evolved dacite that we propose is a residual melt from extensive crystallization, and a Mg-rich olivine-orthopyroxene and symplectite assemblage, which we interpret to represent the mantle of Vesta. Evidence suggests that complete melting of Vesta likely did not occur, and that partial melting and serial magmatism dominated the early magmatic history of Vesta. This research supports an evolving view that the differentiation and magmatic activity that occurred on Vesta was extremely complex. |
format |
Text |
author |
Hahn, Timothy Michael, Jr. |
author_facet |
Hahn, Timothy Michael, Jr. |
author_sort |
Hahn, Timothy Michael, Jr. |
title |
Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta |
title_short |
Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta |
title_full |
Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta |
title_fullStr |
Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta |
title_full_unstemmed |
Petrology of the Paired Dominion Range 2010 Howardites: Indications of Magmatic Complexity on Asteroid Vesta |
title_sort |
petrology of the paired dominion range 2010 howardites: indications of magmatic complexity on asteroid vesta |
publisher |
TRACE: Tennessee Research and Creative Exchange |
publishDate |
2016 |
url |
https://trace.tennessee.edu/utk_gradthes/4040 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=5207&context=utk_gradthes |
long_lat |
ENVELOPE(166.500,166.500,-85.333,-85.333) |
geographic |
Dominion Range |
geographic_facet |
Dominion Range |
genre |
Antarc* Antarctica |
genre_facet |
Antarc* Antarctica |
op_source |
Masters Theses |
op_relation |
https://trace.tennessee.edu/utk_gradthes/4040 https://trace.tennessee.edu/cgi/viewcontent.cgi?article=5207&context=utk_gradthes |
_version_ |
1766158050390966272 |