{"created":"2023-05-15T09:42:19.861378+00:00","id":2205,"links":{},"metadata":{"_buckets":{"deposit":"24d4fefb-c196-4846-81ea-04da6bc2654a"},"_deposit":{"created_by":11,"id":"2205","owners":[11],"pid":{"revision_id":0,"type":"depid","value":"2205"},"status":"published"},"_oai":{"id":"oai:kagawa-u.repo.nii.ac.jp:00002205","sets":["1:35:38:288"]},"author_link":["916","2931","2760"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-09-30","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"104","bibliographicPageStart":"95","bibliographicVolumeNumber":"62","bibliographic_titles":[{"bibliographic_title":"香川大学教育学部研究報告 第Ⅱ部","bibliographic_titleLang":"ja"},{"bibliographic_title":"Memoirs of the Faculty of Education, Kagawa University. Part II","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Some radioactive nuclear species ²²⁶Ra, ²²⁸Ra, ²²⁸Th in banded structure hokutolite were detected and the intensity of radioactivity of each nuclear species in each crystal layer were measured by using gamma spectrometer. It was found that, both in normal color type and abnormal color type banded structure hokutolite, there are clear differences of radioactivity between neighboring brown crystal layer and white crystal layer. And as to the relationships between chemical compositions and radioactivity of each crystal layer, it was found that white crystal layer contains more radioactivity than brown layer in both type banded structure hokutolite.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"The reasons of these results are following. As to the normal type banded structure, white crystal layer which has lower lead content was formed at lower growth rate than brown crystal layer, and the partition coefficient of radium is slightly larger, and intensity of radioactivity become larger. On the other hand, as to the abnormal type banded structure, white crystal layer which has higher lead content was formed at high growth rate, and the partition coeffcient of radium slightly lower, but because of much barium sulfate and lead sulfate contents, total radioactivity become larger than brown layer.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"The crystal growth rate were evaluated from ²²⁶Ra/²²⁸Ra ratio and thickness of crystal layers, and 0.096mm/y were obtained. This result is good consistent with the value evaluated by Saito et al. (1963). ²³²Th conent in the banded structure hokutolite was also evaluated from the activity of ²²⁸Ra which was made from ²³²Th. The value is about 70ppm which is about 10 times larger compared with the abundance of thorium element in the earth crust.","subitem_description_language":"en","subitem_description_type":"Abstract"},{"subitem_description":"縞状北投石の各結晶層中に含まれる放射性核種を井戸型ゲルマニウム半導体ガンマ線スペクトロメーターを用いて検出し、それぞれの放射強度を定量的に測定した。その結果、検出した²²⁶Ra、²²⁸Ra、²²⁸Thのうち、²²⁶Raについて、色正常タイプのものは白色層の方が褐色層よりも多いこと、また、色異常タイプのものもやはり白色層の方が多いことがみとめられた。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"その理由としては、色正常タイプのものについては、鉛含有量の小さい白色層は結晶成長速度が小さく、より平衡に近い条件で温泉水から生成することから、ラジウムが硫酸バリウム相に取り込まれやすくなるものと考えられる。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"それに対し、色異常タイプのものは鉛含有量（mol%）の大きい白色層は成長速度が大きく、ラジウムは取り込まれにくくなるが、結晶層に硫酸鉛が多いことや、結晶層に占める硫酸塩相自体が多いため、バルクとしてのラジウム濃度が褐色層よりも高くなり放射能強度が大きくなるものと解釈される。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"次に、玉川温泉産の縞状北投石中の²²⁸Raに²³²Th由来のものがあると考え、その影響を差し引いて²²⁶Raと²²⁸Raの放射能強度比より結晶層の生成年代を求めた。それらをもとに結晶成長速度を求めると、およそ0.096mm/y（≤0.096mm/y）という値が得られた。これは Saito, Sasaki and Sakai（1963）の結果と良い一致を示す。","subitem_description_language":"ja","subitem_description_type":"Abstract"},{"subitem_description":"²³²Th由来の²²⁸Raの放射能強度から、結晶層中の²³²Thの含有量を求めたところ、褐色層のD1層とD5層でおよそ76ppmという値が得られた。これは地殻中のThの平均元素存在度のおよそ10倍以上であるが、他の層にはあまり含有されていない。Thは粘土鉱物に取り込まれやすく、Fe含有量と相関をもつといわれているが、これらが色異常と何らかの関わりがある可能性がある。","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"香川大学教育学部","subitem_publisher_language":"ja"}]},"item_10002_relation_12":{"attribute_name":"論文ID（NAID）","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"120007014157","subitem_relation_type_select":"NAID"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00038226","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0389-3057","subitem_source_identifier_type":"PISSN"}]},"item_10002_text_25":{"attribute_name":"WAID","attribute_value_mlt":[{"subitem_text_value":"916"}]},"item_10002_text_26":{"attribute_name":"KEID","attribute_value_mlt":[{"subitem_text_value":"28352"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_abf2"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"佐々木, 信行","creatorNameLang":"ja"},{"creatorName":"ササキ, ノブユキ","creatorNameLang":"ja-Kana"},{"creatorName":"Sasaki, Nobuyuki","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"916","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000002311922","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000002311922"},{"nameIdentifier":"60170685","nameIdentifierScheme":"e-Rad","nameIdentifierURI":"https://kaken.nii.ac.jp/ja/search/?qm=60170685"},{"nameIdentifier":"read0171013","nameIdentifierScheme":"researchmap","nameIdentifierURI":"https://researchmap.jp/read0171013"}]},{"creatorNames":[{"creatorName":"流郷, 忍","creatorNameLang":"ja"},{"creatorName":"リュウゴウ, シノブ","creatorNameLang":"ja-Kana"},{"creatorName":"Ryugo, Shinobu","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"2931","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000006421141","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000006421141"}]},{"creatorNames":[{"creatorName":"堀口, 昇","creatorNameLang":"ja"},{"creatorName":"ホリグチ, ノボル","creatorNameLang":"ja-Kana"},{"creatorName":"Horiguchi, Noboru","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"2760","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"9000364920226","nameIdentifierScheme":"CiNii ID","nameIdentifierURI":"http://ci.nii.ac.jp/nrid/9000364920226"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-12-11"}],"displaytype":"detail","filename":"AN00038226_062-2_L095.pdf","filesize":[{"value":"709.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"AN00038226_062-2_L095","objectType":"fulltext","url":"https://kagawa-u.repo.nii.ac.jp/record/2205/files/AN00038226_062-2_L095.pdf"},"version_id":"7d0d786b-2a84-4ade-9768-3743bf432219"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"放射性核種","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"縞状北投石","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"放射能強度","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"みかけの分配係数","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"結晶成長速度","subitem_subject_language":"ja","subitem_subject_scheme":"Other"},{"subitem_subject":"radioactive nuclear species","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"banded structure hokutolite","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"intensity of radioactivity","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"apparent partition coefficient","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"crystal growth rate","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"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":"縞状北投石中の放射性核種の分布について","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"縞状北投石中の放射性核種の分布について","subitem_title_language":"ja"},{"subitem_title":"Distribution of radioactive nuclear species in banded structure hokutolite from Tamagawa Hot Spring, Japan","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"11","path":["288"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2018-03-22"},"publish_date":"2018-03-22","publish_status":"0","recid":"2205","relation_version_is_last":true,"title":["縞状北投石中の放射性核種の分布について"],"weko_creator_id":"11","weko_shared_id":-1},"updated":"2023-08-10T01:44:45.121817+00:00"}