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In order to investigate how these halogens are distributed in constituent mineral phases of Antarctic chondrites, the outer portion of Yamato (Y)-74014 H6 chondrite (Y-74014,101) was subjected to fractional dissolution using several solutions with different chemical properties. Pulverized meteorite sample was successively leached by acetone, (hot) water, EDTA and nitric acid, and individual leachates as well as the acid residue were analyzed for halogens by neutron activation analysis. About 10% of iodine was recovered in acetone whereas only less than 2% of Cl and Br are leached, suggesting that overabundant iodine is partly present in the form of acetone-soluble, possibly organic compound. Dissolution patterns of Cl and I with water are similar to each other. This implies that contaminated Cl and I both reside in a common phase, presumably in akaganeite, a corrosion product of Fe-Ni alloy with chlorine attracted from the environment. Either iodine was involved in this mineral when corrosion reaction occurred or iodine was later migrated into the mineral by exchanging with Cl^- and/or OH^-. For the chronological studies using long-lived nuclides such as ^\u003c36\u003eCl and ^\u003c129\u003eI, it is essential to use indigenous halogens in meteorites. For such purposes, the acid-residual fraction can be used even for Antarctic meteorites having overabundant halogens. In addition, Cl, Br and I contents in bulk Allende and Bruderheim chondrites are also obtained in this study and their abundances are briefly discussed.", "subitem_description_type": "Other"}]}, "item_1_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.15094/00005973", "subitem_identifier_reg_type": "JaLC"}]}, "item_1_publisher_22": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "National Institute of Polar Research"}]}, "item_1_source_id_13": {"attribute_name": "雑誌書誌ID", "attribute_value_mlt": [{"subitem_source_identifier": "AA11182426", "subitem_source_identifier_type": "NCID"}]}, "item_1_text_10": {"attribute_name": "著者所属(英)", "attribute_value_mlt": [{"subitem_text_language": "en", "subitem_text_value": "Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University/Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University/Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University"}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2000-03-01"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00000040965.pdf", "filesize": [{"value": "1.0 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_6", "mimetype": "application/pdf", "size": 1000000.0, "url": {"label": "KJ00000040965", "url": "https://nipr.repo.nii.ac.jp/record/5973/files/KJ00000040965.pdf"}, "version_id": "89866625-a7b4-42c8-933e-638aa2000b88"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "資源タイプ", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "Distribution of halogens in an Antarctic ordinary chondrite, Y-74014 (H6)", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Distribution of halogens in an Antarctic ordinary chondrite, Y-74014 (H6)"}]}, "item_type_id": "1", "owner": "4", "path": ["777"], "permalink_uri": "https://doi.org/10.15094/00005973", "pubdate": {"attribute_name": "公開日", "attribute_value": "2000-03-01"}, "publish_date": "2000-03-01", "publish_status": "0", "recid": "5973", "relation": {}, "relation_version_is_last": true, "title": ["Distribution of halogens in an Antarctic ordinary chondrite, Y-74014 (H6)"], "weko_shared_id": 4}
Distribution of halogens in an Antarctic ordinary chondrite, Y-74014 (H6)
https://doi.org/10.15094/00005973
https://doi.org/10.15094/00005973c8252605-dd8c-4856-81aa-db0a001f288d
名前 / ファイル | ライセンス | アクション |
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KJ00000040965 (1.0 MB)
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Item type | 紀要論文(ELS) / Departmental Bulletin Paper(1) | |||||
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公開日 | 2000-03-01 | |||||
タイトル | ||||||
タイトル | Distribution of halogens in an Antarctic ordinary chondrite, Y-74014 (H6) | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
ID登録 | ||||||
ID登録 | 10.15094/00005973 | |||||
ID登録タイプ | JaLC | |||||
ページ属性 | ||||||
内容記述タイプ | Other | |||||
内容記述 | P(論文) | |||||
著者名(英) |
Kato,Fujitaka
× Kato,Fujitaka× Ozaki,Hiromasa× Ebihara, Mitsuru |
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著者所属(英) | ||||||
en | ||||||
Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University/Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University/Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University | ||||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | One of the striking features in Antarctic meteorites is overabundances of halogens, especially iodine. In order to investigate how these halogens are distributed in constituent mineral phases of Antarctic chondrites, the outer portion of Yamato (Y)-74014 H6 chondrite (Y-74014,101) was subjected to fractional dissolution using several solutions with different chemical properties. Pulverized meteorite sample was successively leached by acetone, (hot) water, EDTA and nitric acid, and individual leachates as well as the acid residue were analyzed for halogens by neutron activation analysis. About 10% of iodine was recovered in acetone whereas only less than 2% of Cl and Br are leached, suggesting that overabundant iodine is partly present in the form of acetone-soluble, possibly organic compound. Dissolution patterns of Cl and I with water are similar to each other. This implies that contaminated Cl and I both reside in a common phase, presumably in akaganeite, a corrosion product of Fe-Ni alloy with chlorine attracted from the environment. Either iodine was involved in this mineral when corrosion reaction occurred or iodine was later migrated into the mineral by exchanging with Cl^- and/or OH^-. For the chronological studies using long-lived nuclides such as ^<36>Cl and ^<129>I, it is essential to use indigenous halogens in meteorites. For such purposes, the acid-residual fraction can be used even for Antarctic meteorites having overabundant halogens. In addition, Cl, Br and I contents in bulk Allende and Bruderheim chondrites are also obtained in this study and their abundances are briefly discussed. | |||||
雑誌書誌ID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA11182426 | |||||
書誌情報 |
Antarctic meteorite research 巻 13, p. 121-134, 発行日 2000-03 |
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出版者 | ||||||
出版者 | National Institute of Polar Research |