{"id":{"repo_id":"nodak","oai_identifier":"oai:commons.und.edu:theses-2228"},"canonical_url":"https://search.dev.ndltd.org/etd/nodak/oai:commons.und.edu:theses-2228","repository":{"repo_id":"nodak","name":"University of North Dakota","base_url":"https://commons.und.edu/do/oai/"},"display":{"title":"Testing The Gefion Family As A Possible Parent Body For The L-Chondrite Meteorites","abstract":"<p>The L-chondrite meteorites are the most abundant meteorites falling to Earth. Identifying a parent body for them has been an important goal of asteroid science for more than thirty years. A link between the two could help to decipher the history of thermal regimes and evolutionary processes that occurred in the early solar system. A plausible or probable parent body can be identified based on two main criteria. A plausible body will either be located favorably to deliver the relevant amounts of meteoroids to the Earth, or will possess a surface mineralogy compatible with that of the L-chondrite meteorites. A probable parent body will meet both criteria (Gaffey, 2011).</p> <p> Based on research performed on fossil L-chondrite meteorites, and dynamical modeling of various resonances and asteroid families, the Gefion family has been hypothesized as a plausible source of the L-chondrite meteorites. It is favorably located within the asteroid belt for delivery of fragments to Earth, so in an effort to test the possibility that this family is a probable parent to these meteorites, this study used near-infrared spectral data gathered with the NASA Infrared Telescope Facility (IRTF) to characterize the mineralogy of two asteroids of the Gefion Family.</p> <p> Although not solidly proven to be L-chondrites, both asteroids are grossly consistent with the mineralogy of this type of meteorite. Taking error into </p> <p>account, whether human, meteorological, or instrumental, both asteroids can reasonably be considered to fall within the L-chondrite realm. More spectra of these and other Gefion asteroids are needed to come to a valid conclusion regarding the family as a source for these meteorites, but at this point the hypothesis is still a viable one.</p>","abstract_html":"&lt;p&gt;The L-chondrite meteorites are the most abundant meteorites falling to Earth. Identifying a parent body for them has been an important goal of asteroid science for more than thirty years. A link between the two could help to decipher the history of thermal regimes and evolutionary processes that occurred in the early solar system. A plausible or probable parent body can be identified based on two main criteria. A plausible body will either be located favorably to deliver the relevant amounts of meteoroids to the Earth, or will possess a surface mineralogy compatible with that of the L-chondrite meteorites. A probable parent body will meet both criteria (Gaffey, 2011).&lt;/p&gt; &lt;p&gt; Based on research performed on fossil L-chondrite meteorites, and dynamical modeling of various resonances and asteroid families, the Gefion family has been hypothesized as a plausible source of the L-chondrite meteorites. It is favorably located within the asteroid belt for delivery of fragments to Earth, so in an effort to test the possibility that this family is a probable parent to these meteorites, this study used near-infrared spectral data gathered with the NASA Infrared Telescope Facility (IRTF) to characterize the mineralogy of two asteroids of the Gefion Family.&lt;/p&gt; &lt;p&gt; Although not solidly proven to be L-chondrites, both asteroids are grossly consistent with the mineralogy of this type of meteorite. Taking error into &lt;/p&gt; &lt;p&gt;account, whether human, meteorological, or instrumental, both asteroids can reasonably be considered to fall within the L-chondrite realm. More spectra of these and other Gefion asteroids are needed to come to a valid conclusion regarding the family as a source for these meteorites, but at this point the hypothesis is still a viable one.&lt;/p&gt;","abstract_has_math":false,"creators":["Blagen, Jessica Ronnie"],"institution":null,"degree_name":"Master of Science (MS)","degree_level":"Thesis","degree_discipline":"Space Studies","degree_department":null,"school":null,"contributors":["Mike J. Gaffey"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2012,"date_issued":"2012-01-01T08:00:00Z","date_published":"2012-01-01T08:00:00Z","updated_at":"2026-07-24T03:26:11Z","subjects":["Asteroids, Gefion family, L-chondrites, Meteorites, Mineralogy, Spectroscopy"],"languages":[],"rights":[],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"https://commons.und.edu/theses/1227","outbound_label":"Repository record","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mike J. Gaffey"]},{"key":"dc:creator","label":"Author","values":["Blagen, Jessica Ronnie"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"thesis:degree_discipline","label":"Discipline","values":["Space Studies"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Master of Science (MS)"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Asteroids, Gefion family, L-chondrites, Meteorites, Mineralogy, Spectroscopy"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["https://commons.und.edu/theses/1227"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["<p>The L-chondrite meteorites are the most abundant meteorites falling to Earth. Identifying a parent body for them has been an important goal of asteroid science for more than thirty years. A link between the two could help to decipher the history of thermal regimes and evolutionary processes that occurred in the early solar system. A plausible or probable parent body can be identified based on two main criteria. A plausible body will either be located favorably to deliver the relevant amounts of meteoroids to the Earth, or will possess a surface mineralogy compatible with that of the L-chondrite meteorites. A probable parent body will meet both criteria (Gaffey, 2011).</p> <p> Based on research performed on fossil L-chondrite meteorites, and dynamical modeling of various resonances and asteroid families, the Gefion family has been hypothesized as a plausible source of the L-chondrite meteorites. It is favorably located within the asteroid belt for delivery of fragments to Earth, so in an effort to test the possibility that this family is a probable parent to these meteorites, this study used near-infrared spectral data gathered with the NASA Infrared Telescope Facility (IRTF) to characterize the mineralogy of two asteroids of the Gefion Family.</p> <p> Although not solidly proven to be L-chondrites, both asteroids are grossly consistent with the mineralogy of this type of meteorite. Taking error into </p> <p>account, whether human, meteorological, or instrumental, both asteroids can reasonably be considered to fall within the L-chondrite realm. More spectra of these and other Gefion asteroids are needed to come to a valid conclusion regarding the family as a source for these meteorites, but at this point the hypothesis is still a viable one.</p>"]},{"key":"dc:title","label":"Title","values":["Testing The Gefion Family As A Possible Parent Body For The L-Chondrite Meteorites"]}]}],"canonical_facts":{"dc:contributor":["Mike J. Gaffey"],"dc:creator":["Blagen, Jessica Ronnie"],"dc:description.abstract":["<p>The L-chondrite meteorites are the most abundant meteorites falling to Earth. Identifying a parent body for them has been an important goal of asteroid science for more than thirty years. A link between the two could help to decipher the history of thermal regimes and evolutionary processes that occurred in the early solar system. A plausible or probable parent body can be identified based on two main criteria. A plausible body will either be located favorably to deliver the relevant amounts of meteoroids to the Earth, or will possess a surface mineralogy compatible with that of the L-chondrite meteorites. A probable parent body will meet both criteria (Gaffey, 2011).</p> <p> Based on research performed on fossil L-chondrite meteorites, and dynamical modeling of various resonances and asteroid families, the Gefion family has been hypothesized as a plausible source of the L-chondrite meteorites. It is favorably located within the asteroid belt for delivery of fragments to Earth, so in an effort to test the possibility that this family is a probable parent to these meteorites, this study used near-infrared spectral data gathered with the NASA Infrared Telescope Facility (IRTF) to characterize the mineralogy of two asteroids of the Gefion Family.</p> <p> Although not solidly proven to be L-chondrites, both asteroids are grossly consistent with the mineralogy of this type of meteorite. Taking error into </p> <p>account, whether human, meteorological, or instrumental, both asteroids can reasonably be considered to fall within the L-chondrite realm. More spectra of these and other Gefion asteroids are needed to come to a valid conclusion regarding the family as a source for these meteorites, but at this point the hypothesis is still a viable one.</p>"],"dc:identifier":["https://commons.und.edu/theses/1227"],"dc:subject":["Asteroids, Gefion family, L-chondrites, Meteorites, Mineralogy, Spectroscopy"],"dc:title":["Testing The Gefion Family As A Possible Parent Body For The L-Chondrite Meteorites"],"thesis:degree_discipline":["Space Studies"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["Master of Science (MS)"]},"updated_at":"2026-07-24T03:26:11Z"}