Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra
International audience [1] We present model mineralogy of impact crater central peaks combined with crustal thickness and crater central peak depth of origin models to report multiple perspectives of lunar crustal composition with depth. Here we report the analyses of 55 impact crater central peaks...
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ftunivparis:oai:HAL:hal-02458562v1 2023-05-15T18:23:10+02:00 Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra Cahill, J. T. S. Lucey, P. G. Wieczorek, M. Hawaii Institute of Geophysics and Planetology (HIGP) University of Hawai‘i Mānoa (UHM) Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) 2009 https://hal.science/hal-02458562 https://hal.science/hal-02458562/document https://hal.science/hal-02458562/file/Cahill%20et%20al.%202009.pdf https://doi.org/10.1029/2008JE003282 en eng HAL CCSD American Geophysical Union info:eu-repo/semantics/altIdentifier/doi/10.1029/2008JE003282 hal-02458562 https://hal.science/hal-02458562 https://hal.science/hal-02458562/document https://hal.science/hal-02458562/file/Cahill%20et%20al.%202009.pdf doi:10.1029/2008JE003282 info:eu-repo/semantics/OpenAccess ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-02458562 Journal of Geophysical Research, 2009, 114 (E9), pp.E09001. ⟨10.1029/2008JE003282⟩ [SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology info:eu-repo/semantics/article Journal articles 2009 ftunivparis https://doi.org/10.1029/2008JE003282 2023-03-15T17:54:59Z International audience [1] We present model mineralogy of impact crater central peaks combined with crustal thickness and crater central peak depth of origin models to report multiple perspectives of lunar crustal composition with depth. Here we report the analyses of 55 impact crater central peaks and how their compositions directly relate to the lunar highlands sample suite. A radiative transfer model is used to analyze Clementine visible plus near-infrared spectra to place compositional constraints on these central peak materials. Central peaks analyzed are dominantly magnesian-and plagioclase-poor; strong compositional similarities to lunar Mg-suite materials are evident. Relative to crustal thickness estimates, central peak mineralogy becomes more plagioclase-rich as the crust thickens. Relative to the crust-mantle boundary, the origin of peaks with dominantly mafic mineralogy are confined to the lower crust and primarily within the South-Pole Aitken and Procellarum KREEP Terranes (PKT); additionally, central peaks with anorthositic mineralogy (>60 vol % plagioclase) are transported to the surface from all depths in the crustal column and confined to the Feldspathic Highlands Terrane (FHT). The discovery of mafic and magnesian materials, consistent with Mg-suite rocks of the sample collection, in all lunar terranes suggests that the process and sources that give rise to these types of rocks is not unique to the PKT and not necessarily dependent on incompatible elements for formation. The identification of ferroan and magnesian anorthositic material near the crust-mantle boundary of the FHT is also inconsistent with an increasing mafic/feldspar ratio and Mg' with depth in the crust. Citation: Cahill, J. T. S., P. G. Lucey, and M. A. Wieczorek (2009), Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra Article in Journal/Newspaper South pole Université de Paris: Portail HAL South Pole Aitken ENVELOPE(-44.516,-44.516,-60.733,-60.733) Cahill ENVELOPE(-71.231,-71.231,-74.880,-74.880) Journal of Geophysical Research 114 E9 |
institution |
Open Polar |
collection |
Université de Paris: Portail HAL |
op_collection_id |
ftunivparis |
language |
English |
topic |
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology |
spellingShingle |
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology Cahill, J. T. S. Lucey, P. G. Wieczorek, M. Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
topic_facet |
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology |
description |
International audience [1] We present model mineralogy of impact crater central peaks combined with crustal thickness and crater central peak depth of origin models to report multiple perspectives of lunar crustal composition with depth. Here we report the analyses of 55 impact crater central peaks and how their compositions directly relate to the lunar highlands sample suite. A radiative transfer model is used to analyze Clementine visible plus near-infrared spectra to place compositional constraints on these central peak materials. Central peaks analyzed are dominantly magnesian-and plagioclase-poor; strong compositional similarities to lunar Mg-suite materials are evident. Relative to crustal thickness estimates, central peak mineralogy becomes more plagioclase-rich as the crust thickens. Relative to the crust-mantle boundary, the origin of peaks with dominantly mafic mineralogy are confined to the lower crust and primarily within the South-Pole Aitken and Procellarum KREEP Terranes (PKT); additionally, central peaks with anorthositic mineralogy (>60 vol % plagioclase) are transported to the surface from all depths in the crustal column and confined to the Feldspathic Highlands Terrane (FHT). The discovery of mafic and magnesian materials, consistent with Mg-suite rocks of the sample collection, in all lunar terranes suggests that the process and sources that give rise to these types of rocks is not unique to the PKT and not necessarily dependent on incompatible elements for formation. The identification of ferroan and magnesian anorthositic material near the crust-mantle boundary of the FHT is also inconsistent with an increasing mafic/feldspar ratio and Mg' with depth in the crust. Citation: Cahill, J. T. S., P. G. Lucey, and M. A. Wieczorek (2009), Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
author2 |
Hawaii Institute of Geophysics and Planetology (HIGP) University of Hawai‘i Mānoa (UHM) Institut de Physique du Globe de Paris (IPGP (UMR_7154)) Institut national des sciences de l'Univers (INSU - CNRS)-Université de La Réunion (UR)-Institut de Physique du Globe de Paris (IPG Paris)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité) |
format |
Article in Journal/Newspaper |
author |
Cahill, J. T. S. Lucey, P. G. Wieczorek, M. |
author_facet |
Cahill, J. T. S. Lucey, P. G. Wieczorek, M. |
author_sort |
Cahill, J. T. S. |
title |
Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
title_short |
Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
title_full |
Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
title_fullStr |
Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
title_full_unstemmed |
Compositional variations of the lunar crust: Results from radiative transfer modeling of central peak spectra |
title_sort |
compositional variations of the lunar crust: results from radiative transfer modeling of central peak spectra |
publisher |
HAL CCSD |
publishDate |
2009 |
url |
https://hal.science/hal-02458562 https://hal.science/hal-02458562/document https://hal.science/hal-02458562/file/Cahill%20et%20al.%202009.pdf https://doi.org/10.1029/2008JE003282 |
long_lat |
ENVELOPE(-44.516,-44.516,-60.733,-60.733) ENVELOPE(-71.231,-71.231,-74.880,-74.880) |
geographic |
South Pole Aitken Cahill |
geographic_facet |
South Pole Aitken Cahill |
genre |
South pole |
genre_facet |
South pole |
op_source |
ISSN: 0148-0227 EISSN: 2156-2202 Journal of Geophysical Research https://hal.science/hal-02458562 Journal of Geophysical Research, 2009, 114 (E9), pp.E09001. ⟨10.1029/2008JE003282⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1029/2008JE003282 hal-02458562 https://hal.science/hal-02458562 https://hal.science/hal-02458562/document https://hal.science/hal-02458562/file/Cahill%20et%20al.%202009.pdf doi:10.1029/2008JE003282 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1029/2008JE003282 |
container_title |
Journal of Geophysical Research |
container_volume |
114 |
container_issue |
E9 |
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1766202706574180352 |