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Tack P, De Pauw E, Tkalcec B, Lindner M, Bazi B, Vekemans B, Brenker F, Di Michiel M, Uesugi M, Yurimoto H, Nakamura T, Amano K, Matsumoto M, Fujioka Y, Enokido Y, Nakashima D, Noguchi T, Okazaki R, Yabuta H, Naraoka H, Sakamoto K, Tachibana S, Yada T, Nishimura M, Nakato A, Miyazaki A, Yogata K, Abe M, Okada T, Usui T, Yoshikawa M, Saiki T, Tanaka S, Terui F, Nakazawa S, Watanabe SI, Tsuda Y, Vincze L. Rare earth element identification and quantification in millimetre-sized Ryugu rock fragments from the Hayabusa2 space mission. Earth Planets Space 2022; 74:146. [PMID: 36185784 PMCID: PMC9516535 DOI: 10.1186/s40623-022-01705-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 09/13/2022] [Indexed: 06/16/2023]
Abstract
UNLABELLED Millimetre-sized primordial rock fragments originating from asteroid Ryugu were investigated using high energy X-ray fluorescence spectroscopy, providing 2D and 3D elemental distribution and quantitative composition information on the microscopic level. Samples were collected in two phases from two sites on asteroid Ryugu and safely returned to Earth by JAXA's asteroid explorer Hayabusa2, during which time the collected material was stored and maintained free from terrestrial influences, including exposure to Earth's atmosphere. Several grains of interest were identified and further characterised to obtain quantitative information on the rare earth element (REE) content within said grains, following a reference-based and computed-tomography-assisted fundamental parameters quantification approach. Several orders of magnitude REE enrichments compared to the mean CI chondrite composition were found within grains that could be identified as apatite phase. Small enrichment of LREE was found for dolomite grains and slight enrichment or depletion for the general matrices within the Ryugu rock fragments A0055 and C0076, respectively. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1186/s40623-022-01705-3.
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Affiliation(s)
- Pieter Tack
- Dept. of Chemistry, XMI, Ghent University, Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Ella De Pauw
- Dept. of Chemistry, XMI, Ghent University, Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Beverley Tkalcec
- Dept. of Geoscience, Goethe University, Altenhoeferallee 1, 60438 Frankfurt, Germany
| | - Miles Lindner
- Dept. of Geoscience, Goethe University, Altenhoeferallee 1, 60438 Frankfurt, Germany
| | - Benjamin Bazi
- Dept. of Chemistry, XMI, Ghent University, Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Bart Vekemans
- Dept. of Chemistry, XMI, Ghent University, Krijgslaan 281 S12, 9000 Ghent, Belgium
| | - Frank Brenker
- Dept. of Geoscience, Goethe University, Altenhoeferallee 1, 60438 Frankfurt, Germany
- IHGP, University of Hawaii, Menoa, HI USA
| | | | | | | | | | - Kana Amano
- Tohoku University, Sendai, 980-8578 Japan
| | - Megumi Matsumoto
- Department of Earth Science, Tohoku University, Aoba-ku, Sendai, 980-8578 Japan
| | - Yuri Fujioka
- Department of Earth Science, Tohoku University, Aoba-ku, Sendai, 980-8578 Japan
| | - Yuma Enokido
- Department of Earth Science, Tohoku University, Aoba-ku, Sendai, 980-8578 Japan
| | - Daisuke Nakashima
- Department of Earth Science, Tohoku University, Aoba-ku, Sendai, 980-8578 Japan
| | | | | | - Hikaru Yabuta
- Hiroshima University, Higashi-Hiroshima, 739-8526 Japan
| | | | | | - Shogo Tachibana
- ISAS/JAXA, Sagamihara, 252-5210 Japan
- The University of Tokyo, Tokyo, 113-0033 Japan
| | - Toru Yada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Masahiro Nishimura
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Aiko Nakato
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Akiko Miyazaki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Kasumi Yogata
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Masanao Abe
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Tatsuaki Okada
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Tomohiro Usui
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Makoto Yoshikawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Takanao Saiki
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Satoshi Tanaka
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | - Fuyuto Terui
- Kanagawa Institute of Technology, Atsugi, 243-0292 Japan
| | - Satoru Nakazawa
- Institute of Space and Astronautical Science (ISAS), Japan Aerospace Exploration Agency (JAXA), Sagamihara, 252-5210 Japan
| | | | | | - Laszlo Vincze
- Dept. of Chemistry, XMI, Ghent University, Krijgslaan 281 S12, 9000 Ghent, Belgium
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Tack P, De Pauw E, Tkalcec B, Longo A, Sahle CJ, Brenker F, Vincze L. Identification of the Calcium, Aluminum, and Magnesium Distribution within Millimeter-Sized Extraterrestrial Materials Using Nonresonant X-ray Raman Spectroscopy in Preparation for the Hayabusa2 Sample Return Mission. Anal Chem 2021; 93:14651-14658. [PMID: 34698490 DOI: 10.1021/acs.analchem.1c02774] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The nondestructive investigation of millimeter-sized meteoritic materials is often hindered by self-absorption effects. Using X-ray-based analytical methods, the information depth for many elements (Z < 30) is in the range of up to only a few hundred micrometers, and for low-Z elements (Z < 20), this is reduced even further to only a few tens of micrometers. However, the investigation of these low-Z elements, in particular calcium, aluminum, and magnesium, is of great importance to planetary geologists and cosmochemists, as these elements are regularly used to characterize and identify specific features of interest in extraterrestrial materials, especially primitive chondritic material. In this work, nonresonant inelastic X-ray scattering from core electrons was performed at beamline ID20 of the ESRF in a direct tomography approach in order to visualize these low-Z elements within the millimeter-sized meteoritic samples. The obtained 3D elemental distribution volumes were compared to results from X-ray fluorescence-CT and absorption CT experiments and were found to be in good agreement. Additionally, several regions of interest could be identified within the inelastic scattering volumes, containing information that is not available through the other presented means. As such, the proposed approach presents a valuable tool for the nondestructive investigation of low-Z elemental distributions within millimeter-sized extraterrestrial materials, such as the samples of the Hayabusa2 sample return mission.
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Affiliation(s)
- Pieter Tack
- X-ray Micro-spectroscopy and Imaging Research Group, Department of Chemistry, Ghent University, Krijgslaan 281 S12 9000 Ghent, Belgium
| | - Ella De Pauw
- X-ray Micro-spectroscopy and Imaging Research Group, Department of Chemistry, Ghent University, Krijgslaan 281 S12 9000 Ghent, Belgium
| | - Beverley Tkalcec
- Institute of Geosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | | | | | - Frank Brenker
- Institute of Geosciences, Goethe University Frankfurt, 60438 Frankfurt am Main, Germany
| | - Laszlo Vincze
- X-ray Micro-spectroscopy and Imaging Research Group, Department of Chemistry, Ghent University, Krijgslaan 281 S12 9000 Ghent, Belgium
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