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Geochemistry of the lunar highlands as revealed by measurements of thermal neutrons
Thermal neutron emissions from the lunar surface provide a direct measure of bulk elemental composition that can be used to constrain the chemical properties of near‐surface (depth 85%, are generally associated with large impact basins and are colocated with clusters of nearly pure plagioclase ident...
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| Published in: | Journal of geophysical research. Planets 2016-03, Vol.121 (3), p.388-401 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-a6112-72fd6f2d685996184a2f3bfd395bc021c22cd9783ec5e9f08f05f3a0eac0883f3 |
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| cites | cdi_FETCH-LOGICAL-a6112-72fd6f2d685996184a2f3bfd395bc021c22cd9783ec5e9f08f05f3a0eac0883f3 |
| container_end_page | 401 |
| container_issue | 3 |
| container_start_page | 388 |
| container_title | Journal of geophysical research. Planets |
| container_volume | 121 |
| creator | Peplowski, Patrick N. Beck, Andrew W. Lawrence, David J. |
| description | Thermal neutron emissions from the lunar surface provide a direct measure of bulk elemental composition that can be used to constrain the chemical properties of near‐surface (depth 85%, are generally associated with large impact basins and are colocated with clusters of nearly pure plagioclase identified with spectral reflectance data.
Key Points
We report the first map of macroscopic neutron absorption for the lunar surface
Elemental composition and variability across the lunar highlands is discussed
Large (>45 km diameter) locations with >85 wt % plagioclase content are identified |
| doi_str_mv | 10.1002/2015JE004950 |
| format | article |
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Key Points
We report the first map of macroscopic neutron absorption for the lunar surface
Elemental composition and variability across the lunar highlands is discussed
Large (>45 km diameter) locations with >85 wt % plagioclase content are identified</description><identifier>ISSN: 2169-9097</identifier><identifier>EISSN: 2169-9100</identifier><identifier>DOI: 10.1002/2015JE004950</identifier><identifier>PMID: 27830110</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>Absorption ; Atmospheres ; Chemical composition ; Chemical properties ; Composition ; Composition of the Moon ; Concentration (composition) ; Emission measurements ; Geochemistry ; Geophysics ; Highlands ; lunar highlands ; Lunar Prospector ; Lunar surface ; Mineral Physics ; Moon ; Neutron absorption ; Neutrons ; Plagioclase ; Planetary Geochemistry ; Planetary Sciences: Comets and Small Bodies ; Planetary Sciences: Fluid Planets ; Planetary Sciences: Solid Surface Planets ; Thermal neutrons ; X‐ray, Neutron, and Electron Spectroscopy and Diffraction</subject><ispartof>Journal of geophysical research. Planets, 2016-03, Vol.121 (3), p.388-401</ispartof><rights>2016. The Authors.</rights><rights>2016. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a6112-72fd6f2d685996184a2f3bfd395bc021c22cd9783ec5e9f08f05f3a0eac0883f3</citedby><cites>FETCH-LOGICAL-a6112-72fd6f2d685996184a2f3bfd395bc021c22cd9783ec5e9f08f05f3a0eac0883f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27923,27924</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27830110$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Peplowski, Patrick N.</creatorcontrib><creatorcontrib>Beck, Andrew W.</creatorcontrib><creatorcontrib>Lawrence, David J.</creatorcontrib><title>Geochemistry of the lunar highlands as revealed by measurements of thermal neutrons</title><title>Journal of geophysical research. Planets</title><addtitle>J Geophys Res Planets</addtitle><description>Thermal neutron emissions from the lunar surface provide a direct measure of bulk elemental composition that can be used to constrain the chemical properties of near‐surface (depth <1 m) lunar materials. We present a new calibration of the Lunar Prospector thermal neutron map, providing a direct link between measured count rates and bulk elemental composition. The data are used to examine the chemical and mineralogical composition of the lunar surface, with an emphasis on constraining the plagioclase concentration across the highlands. We observe that the regions of lowest neutron absorption, which correspond to estimated plagioclase concentrations of >85%, are generally associated with large impact basins and are colocated with clusters of nearly pure plagioclase identified with spectral reflectance data.
Key Points
We report the first map of macroscopic neutron absorption for the lunar surface
Elemental composition and variability across the lunar highlands is discussed
Large (>45 km diameter) locations with >85 wt % plagioclase content are identified</description><subject>Absorption</subject><subject>Atmospheres</subject><subject>Chemical composition</subject><subject>Chemical properties</subject><subject>Composition</subject><subject>Composition of the Moon</subject><subject>Concentration (composition)</subject><subject>Emission measurements</subject><subject>Geochemistry</subject><subject>Geophysics</subject><subject>Highlands</subject><subject>lunar highlands</subject><subject>Lunar Prospector</subject><subject>Lunar surface</subject><subject>Mineral Physics</subject><subject>Moon</subject><subject>Neutron absorption</subject><subject>Neutrons</subject><subject>Plagioclase</subject><subject>Planetary Geochemistry</subject><subject>Planetary Sciences: Comets and Small Bodies</subject><subject>Planetary Sciences: Fluid Planets</subject><subject>Planetary Sciences: Solid Surface Planets</subject><subject>Thermal neutrons</subject><subject>X‐ray, Neutron, and Electron Spectroscopy and Diffraction</subject><issn>2169-9097</issn><issn>2169-9100</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>24P</sourceid><recordid>eNqNksFLHTEQxoNUVNSb5xLopYe-dpJsssmlUOT5WhEKbT2HvOzEXdnd2GTX8v57I-8ptoe2uUyY-eVj5ssQcsbgPQPgHzgwebkEqIyEPXLEmTILUyqvnu5g6kNymvMtlKNLiokDcshrLYAxOCLfVxh9i0OXp7ShMdCpRdrPo0u07W7a3o1Npi7ThPfoemzoekMHdHlOOOA45d2TNLiejjhPKY75hOwH12c83cVjcn2x_HH-eXH1dfXl_NPVwinG-KLmoVGBN0pLYxTTleNBrEMjjFx74Mxz7htTOkUv0QTQAWQQDtB50FoEcUw-bnXv5vWAjS_9JNfbu9QNLm1sdJ39vTJ2rb2J91ZCrSoDReDtTiDFnzPmyRYfPPZlaoxztkyLYmZdl_hvFHTxmqv_UK11bZTUoiromz_Q2zinsZj2SDEuTSVVod5tKZ9izgnD84gM7OMa2JdrUPDXL215hp8-vQBiC_zqetz8Vcxerr4tOUjg4gG7L7r6</recordid><startdate>201603</startdate><enddate>201603</enddate><creator>Peplowski, Patrick N.</creator><creator>Beck, Andrew W.</creator><creator>Lawrence, David J.</creator><general>Blackwell Publishing Ltd</general><general>John Wiley and Sons Inc</general><scope>24P</scope><scope>WIN</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>8FD</scope><scope>H8D</scope><scope>KL.</scope><scope>L7M</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>201603</creationdate><title>Geochemistry of the lunar highlands as revealed by measurements of thermal neutrons</title><author>Peplowski, Patrick N. ; Beck, Andrew W. ; Lawrence, David J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a6112-72fd6f2d685996184a2f3bfd395bc021c22cd9783ec5e9f08f05f3a0eac0883f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Absorption</topic><topic>Atmospheres</topic><topic>Chemical composition</topic><topic>Chemical properties</topic><topic>Composition</topic><topic>Composition of the Moon</topic><topic>Concentration (composition)</topic><topic>Emission measurements</topic><topic>Geochemistry</topic><topic>Geophysics</topic><topic>Highlands</topic><topic>lunar highlands</topic><topic>Lunar Prospector</topic><topic>Lunar surface</topic><topic>Mineral Physics</topic><topic>Moon</topic><topic>Neutron absorption</topic><topic>Neutrons</topic><topic>Plagioclase</topic><topic>Planetary Geochemistry</topic><topic>Planetary Sciences: Comets and Small Bodies</topic><topic>Planetary Sciences: Fluid Planets</topic><topic>Planetary Sciences: Solid Surface Planets</topic><topic>Thermal neutrons</topic><topic>X‐ray, Neutron, and Electron Spectroscopy and Diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Peplowski, Patrick N.</creatorcontrib><creatorcontrib>Beck, Andrew W.</creatorcontrib><creatorcontrib>Lawrence, David J.</creatorcontrib><collection>Wiley Open Access</collection><collection>Wiley Online Library Journals</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of geophysical research. Planets</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Peplowski, Patrick N.</au><au>Beck, Andrew W.</au><au>Lawrence, David J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Geochemistry of the lunar highlands as revealed by measurements of thermal neutrons</atitle><jtitle>Journal of geophysical research. Planets</jtitle><addtitle>J Geophys Res Planets</addtitle><date>2016-03</date><risdate>2016</risdate><volume>121</volume><issue>3</issue><spage>388</spage><epage>401</epage><pages>388-401</pages><issn>2169-9097</issn><eissn>2169-9100</eissn><abstract>Thermal neutron emissions from the lunar surface provide a direct measure of bulk elemental composition that can be used to constrain the chemical properties of near‐surface (depth <1 m) lunar materials. We present a new calibration of the Lunar Prospector thermal neutron map, providing a direct link between measured count rates and bulk elemental composition. The data are used to examine the chemical and mineralogical composition of the lunar surface, with an emphasis on constraining the plagioclase concentration across the highlands. We observe that the regions of lowest neutron absorption, which correspond to estimated plagioclase concentrations of >85%, are generally associated with large impact basins and are colocated with clusters of nearly pure plagioclase identified with spectral reflectance data.
Key Points
We report the first map of macroscopic neutron absorption for the lunar surface
Elemental composition and variability across the lunar highlands is discussed
Large (>45 km diameter) locations with >85 wt % plagioclase content are identified</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><pmid>27830110</pmid><doi>10.1002/2015JE004950</doi><tpages>14</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2169-9097 |
| ispartof | Journal of geophysical research. Planets, 2016-03, Vol.121 (3), p.388-401 |
| issn | 2169-9097 2169-9100 |
| language | eng |
| recordid | cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_5076490 |
| source | Wiley-Blackwell Read & Publish Collection; Alma/SFX Local Collection |
| subjects | Absorption Atmospheres Chemical composition Chemical properties Composition Composition of the Moon Concentration (composition) Emission measurements Geochemistry Geophysics Highlands lunar highlands Lunar Prospector Lunar surface Mineral Physics Moon Neutron absorption Neutrons Plagioclase Planetary Geochemistry Planetary Sciences: Comets and Small Bodies Planetary Sciences: Fluid Planets Planetary Sciences: Solid Surface Planets Thermal neutrons X‐ray, Neutron, and Electron Spectroscopy and Diffraction |
| title | Geochemistry of the lunar highlands as revealed by measurements of thermal neutrons |
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