{"created":"2025-01-14T01:30:23.235895+00:00","id":2012147,"links":{},"metadata":{"_buckets":{"deposit":"641fca25-8aa1-4f89-8041-478ebedb8c97"},"_deposit":{"created_by":7,"id":"2012147","owners":[7],"pid":{"revision_id":0,"type":"depid","value":"2012147"},"status":"published"},"_oai":{"id":"oai:tokushima-u.repo.nii.ac.jp:02012147","sets":["1713853213384:1713853295607"]},"author_link":["600"],"control_number":"2012147","item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2024-06-25","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"35","bibliographicVolumeNumber":"11","bibliographic_titles":[{"bibliographic_title":"Progress in Earth and Planetary Science","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Carbonaceous material (CM) undergoes progressive changes that reflect its thermal history. These changes are in general irreversible and provide valuable information for understanding diagenetic and metamorphic processes of crustal rocks. Among various approaches to quantify these changes, the R2 ratio, area ratio of specific peaks in CM Raman spectra, is widely used to estimate the maximum temperature of intermediate- to moderately high-grade metamorphism. The calculation of the R2 ratio requires peak deconvolution of the original spectrum, and the results depend on the details of how this is carried out. However, a clear protocol for selecting appropriate initial conditions has not been established and obtaining a reliable temperature estimate depends at least in part on the experience and skill of the operator. In this study, we developed a Python code that automatically calculates the R2 ratio from CM Raman spectra. Our code produces R2 ratios that are generally in good agreement with those of Aoya et al. (J Metamorph Geol 28:895–914, 2010, https://doi.org/10.1111/j.1525-1314.2010.00896.x) for the same Raman data, with much less time and effort than was the case in the previous studies. We have confirmed that the code is also applicable to other previous datasets from both contact and regional metamorphic regions. The overall trend of the recalculated data indicates that samples with R2 greater than ~ 0.7 are not sensitive to the changes in CM maturity and thus should not be used for the calibration of an R2-based geothermometer. We propose a modified geothermometer for contact metamorphism that is strictly applicable to samples with R2 from 0.023 to 0.516, with the proviso that a laser with a wavelength of 532 nm should be used. A slight extrapolation of the newly proposed geothermometer up to R2 of 0.57 provides a temperature estimate that is consistent with the geothermometer of Kaneki and Kouketsu (Island Arc 31:e12467, 2022; https://doi.org/10.1111/iar.12467); the boundary between the two geothermometers corresponds to a temperature of 391 °C.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"BioMed Central","subitem_publisher_language":"en"},{"subitem_publisher":"Springer Nature","subitem_publisher_language":"en"}]},"item_10001_rights_15":{"attribute_name":"権利情報","attribute_value_mlt":[{"subitem_rights":"This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.","subitem_rights_language":"en"}]},"item_10001_source_id_9":{"attribute_name":"収録物ID","attribute_value_mlt":[{"subitem_source_identifier":"21974284","subitem_source_identifier_type":"ISSN"}]},"item_10001_version_type_20":{"attribute_name":"出版タイプ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_1715043197608":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"open access"}]},"item_1722929371688":{"attribute_name":"出版社版DOI","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_language":"ja","subitem_relation_name_text":"10.1186/s40645-024-00637-8"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1186/s40645-024-00637-8","subitem_relation_type_select":"DOI"}}]},"item_1723180141928":{"attribute_name":"EID","attribute_value_mlt":[{"subitem_identifier_type":"URI","subitem_identifier_uri":"409050"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"カネキ, シュンヤ","creatorNameLang":"ja"},{"creatorName":"カネキ, シュンヤ","creatorNameLang":"ja-Kana"},{"creatorName":"Kaneki, Shunya","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"コウケツ, ユイ","creatorNameLang":"ja"},{"creatorName":"コウケツ, ユイ","creatorNameLang":"ja-Kana"},{"creatorName":"Kouketsu, Yui","creatorNameLang":"en"}]},{"creatorAffiliations":[{"affiliationNameIdentifiers":[{"affiliationNameIdentifierScheme":"ISNI","affiliationNameIdentifierURI":"http://www.isni.org/isni/"}],"affiliationNames":[{"affiliationNameLang":"ja"}]}],"creatorNames":[{"creatorName":"青矢, 睦月","creatorNameLang":"ja"},{"creatorName":"アオヤ, ムツキ","creatorNameLang":"ja-Kana"},{"creatorName":"Aoya, Mutsuki","creatorNameLang":"en"}],"familyNames":[{"familyName":"青矢","familyNameLang":"ja"},{"familyName":"アオヤ","familyNameLang":"ja-Kana"},{"familyName":"Aoya","familyNameLang":"en"}],"givenNames":[{"givenName":"睦月","givenNameLang":"ja"},{"givenName":"ムツキ","givenNameLang":"ja-Kana"},{"givenName":"Mutsuki","givenNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"600","nameIdentifierScheme":"WEKO"},{"nameIdentifier":"256570/profile-ja.html","nameIdentifierScheme":"徳島大学 教育研究者総覧","nameIdentifierURI":"http://pub2.db.tokushima-u.ac.jp/ERD/person/256570/profile-ja.html"},{"nameIdentifier":"90415638","nameIdentifierScheme":"e-Rad_Researcher","nameIdentifierURI":"https://nrid.nii.ac.jp/ja/search/?qm=90415638"}]},{"creatorNames":[{"creatorName":"ナカムラ, ヨシヒロ","creatorNameLang":"ja"},{"creatorName":"ナカムラ, ヨシヒロ","creatorNameLang":"ja-Kana"},{"creatorName":"Nakamura, Yoshihiro","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Wallis, Simon R.","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"シムラ, ユウスケ","creatorNameLang":"ja"},{"creatorName":"シムラ, ユウスケ","creatorNameLang":"ja-Kana"},{"creatorName":"Shimura, Yusuke","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"ヤマオカ, ケン","creatorNameLang":"ja"},{"creatorName":"ヤマオカ, ケン","creatorNameLang":"ja-Kana"},{"creatorName":"Yamaoka, Ken","creatorNameLang":"en"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-06-28"}],"displaytype":"detail","filename":"peps_11_35.pdf","filesize":[{"value":"1.85 MB"}],"format":"application/pdf","licensetype":"license_0","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://tokushima-u.repo.nii.ac.jp/record/2012147/files/peps_11_35.pdf"},"version_id":"677db078-14b1-4a00-a6f4-87def66a4422"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Automatic peak deconvolution","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Carbonaceous material","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Contact metamorphism","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Geothermometer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Raman spectroscopy","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"An automatic peak deconvolution code for Raman spectra of carbonaceous material and a revised geothermometer for intermediate- to moderately high-grade metamorphism","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"An automatic peak deconvolution code for Raman spectra of carbonaceous material and a revised geothermometer for intermediate- to moderately high-grade metamorphism","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"7","path":["1713853295607"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-06-28"},"publish_date":"2024-06-28","publish_status":"0","recid":"2012147","relation_version_is_last":true,"title":["An automatic peak deconvolution code for Raman spectra of carbonaceous material and a revised geothermometer for intermediate- to moderately high-grade metamorphism"],"weko_creator_id":"7","weko_shared_id":-1},"updated":"2025-02-05T01:27:45.790077+00:00"}