分化隕石の局所U-Pb・Hf-W年代測定に基づく小惑星地殻進化の解明 : 2023年度日本地球化学会奨励賞受賞記念論文

• 資料種別: 記事
• タイトル: 分化隕石の局所U-Pb・Hf-W年代測定に基づく小惑星地殻進化の解明 : 2023年度日本地球化学会奨励賞受賞記念論文
• 著者・編者: 小池 みずほ
• 著者標目: 小池 みずほ
• 並列タイトル等: Elucidation of Asteroidal Crust Evolution Based on U-Pb and Hf-W Dating of Differentiated Meteorites
• タイトル（掲載誌）: 地球化学 = Geochemistry
• 巻号年月日等（掲載誌）: 59(3):2025
• 掲載巻: 59
• 掲載号: 3
• 掲載ページ: 73-89
• 掲載年月日（W3CDTF）: 2025
• ISSN（掲載誌）: 0386-4073
• ISSN-L（掲載誌）: 0386-4073
• 出版事項（掲載誌）: 東京 : 日本地球化学会
• 出版地（国名コード）: JP
• 本文の言語コード: jpn
• 件名標目: Asteroid; Achondrite; Thermal and collisional history; U-Pb dating; Hf-W dating
• NDLC: ZM41
• 対象利用者: 一般
• 所蔵機関: 国立国会図書館
• 請求記号: Z15-645
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 034367039; http://id.ndl.go.jp/bib/034367039
• 整理区分コード: 632

• 要約等: <p>Chronologies of extraterrestrial materials provide key information to reveal the formation and evolution of our planetary system. Uranium–lead dating utilizes the decays of long-lived radionuclides ²³⁸U and ²³⁵U to obtain absolute age information of various geological events of the targets. Hafnium–tungsten dating uses an excess of ¹⁸²W, a daughter nuclide of the short-lived radionuclide ¹⁸²Hf, to determine relative ages of the early solar system events (≥ ～4.5 billion years ago).In-situ measurements by high-spatial resolution secondary ion mass spectrometers (SIMS) enable to determine the U–Pb/²⁰⁷Pb–²⁰⁶Pb ages and ¹⁸²Hf–¹⁸²W ages of accessory minerals (e.g., zircon and Ca-phosphates) contained in various types of meteorites. Here, I summarize the recent chronological works and their possible interpretations focusing on Vesta-related meteorites groups, eucrites and mesosiderites.</p>
• DOI: 10.14934/chikyukagaku.59.73
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: <p>Chronologies of extraterrestrial materials provide key information to reveal the formation and evolution of our planetary system. Uranium–lead dating utilizes the decays of long-lived radionuclides ²³⁸U and ²³⁵U to obtain absolute age information of various geological events of the targets. Hafnium–tungsten dating uses an excess of ¹⁸²W, a daughter nuclide of the short-lived radionuclide ¹⁸²Hf, to determine relative ages of the early solar system events (≥ ～4.5 billion years ago).In-situ measurements by high-spatial resolution secondary ion mass spectrometers (SIMS) enable to determine the U–Pb/²⁰⁷Pb–²⁰⁶Pb ages and ¹⁸²Hf–¹⁸²W ages of accessory minerals (e.g., zircon and Ca-phosphates) contained in various types of meteorites. Here, I summarize the recent chronological works and their possible interpretations focusing on Vesta-related meteorites groups, eucrites and mesosiderites.</p>
• DOI: 10.14934/chikyukagaku.59.73; https://doi.org/10.14934/chikyukagaku.59.73
• 関連情報（URI）: http://id.ndl.go.jp/bib/034367039; https://ndlsearch.ndl.go.jp/books/R000000004-I034367039
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 034367039; http://id.ndl.go.jp/bib/034367039