{"_buckets": {"deposit": "7ac05162-8140-4218-a61b-9279b4eb44b9"}, "_deposit": {"id": "7703", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "7703"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00007703"}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2006", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "32", "bibliographicPageStart": "15", "bibliographicVolumeNumber": "53", "bibliographic_titles": [{"bibliographic_title": "The Journal of Earth and Planetary Sciences, Nagoya University"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "Geochemistry and Cosmochemistry Laboratory, Nagoya University, started a geochemical mapping project in 1994 to make environmental assessment of the Chubu area in Japan. During ten years from 1994 to 2004, stream sediment samples of 1,563 were collected in the northeastern parts of Aichi Prefecture. Major element data of these samples by X-ray fluorescence spectrometry (XRF) and the discussion on their regional spatial distributions have been published. Here we report 22 element analysis (Sc, Cr, Fe, Co, Zn, As, Rb, Sb, Cr, Ba, La, Ce, Sm, Eu, Tb, Yb, Lu, Hf, Ta, Au, Th and U) of the sediment samples by instrumental neutron activation analysis (INAA), together with discussion on the accuracy and precision of our analytical method by INAA.\n A new automated \u03b3-ray counting and data processing system for INAA and postaldelivery system of irradiated samples from Japan Atomic Energy Research Institute were utilized. The INAA system enables us simple and rapid INAA analysis of a large number of samples. By using this system, nine GSJ rock reference samples (JB-1a, JB-2, JA-1, JG-1a, JG-2, JLk-1, JSd-1, JSd-2 and JSd-3) and one USGS rock standard G-2 were analyzed to examine accuracy and precision of analytical results. The results show good agreement with the reference values, indicating that our analytical system is effective for analysis of stream sediments with various bedrock geology. On the other hand, in order to evaluate accruracy of the values obtained by INAA, comparison of analytical results of stream sediments by INAA with the previously analyzed data by inductively coupled plasma atomic emission spectrometry (ICP-AES), atomic absorption spectrometry (AAS) and XRF was made. The result indicates that the data by the ICP-AES and AAS methods, which need HF digestion of samples, could be lower than  the true values for some elements due to partly incomplete decomposition of samples. The INAA method, which needs no HF digestion, is suitable for accurate analysis for a large number of samples in the geochemical mapping project.\n We have collected stream sediments collected at the same site every year since 1994 to 2004. The samples were used to evaluate sample heterogeneity of the sediment collected at the same site. Most of trace elements, except for Cr, Zn, Hf and Au, of the samples show the concentrations with \u00b1(30\uff5e50)% deviations, a little larger than the analytical errors. The Cr, Zn, Hf and Au concentrations have larger deviations, indicating the heterogeneous distribution of small accessory minerals at the sampling site and even in sample aliquots of 100 mg.", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "\u5185\u5bb9\u8a18\u8ff0", "attribute_value_mlt": [{"subitem_description": "\u56fd\u7acb\u60c5\u5831\u5b66\u7814\u7a76\u6240\u3067\u96fb\u5b50\u5316\u3057\u305f\u30b3\u30f3\u30c6\u30f3\u30c4\u3092\u4f7f\u7528\u3057\u3066\u3044\u308b\u3002", "subitem_description_type": "Other"}]}, "item_9_identifier_60": {"attribute_name": "URI", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/2237/9421"}]}, "item_9_identifier_registration": {"attribute_name": "ID\u767b\u9332", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.18999/joueps.53.15", "subitem_identifier_reg_type": "JaLC"}]}, "item_9_publisher_32": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "Dept. of Earth and Planetary Sciences, Nagoya University"}]}, "item_9_select_15": {"attribute_name": "\u8457\u8005\u7248\u30d5\u30e9\u30b0", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_9_source_id_7": {"attribute_name": "ISSN\uff08print\uff09", "attribute_value_mlt": [{"subitem_source_identifier": "0919-875X", "subitem_source_identifier_type": "ISSN"}]}, "item_9_text_14": {"attribute_name": "\u30d5\u30a9\u30fc\u30de\u30c3\u30c8", "attribute_value_mlt": [{"subitem_text_value": "application/pdf"}]}, "item_creator": {"attribute_name": "\u8457\u8005", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "MINAMI, Masayo"}], "nameIdentifiers": [{"nameIdentifier": "21836", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "SHIBATA, Shin-nosuke"}], "nameIdentifiers": [{"nameIdentifier": "21837", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "TANAKA, Tsuyoshi"}], "nameIdentifiers": [{"nameIdentifier": "21838", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "\u30d5\u30a1\u30a4\u30eb\u60c5\u5831", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-02-19"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "KJ00004741138.pdf", "filesize": [{"value": "1.2 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1200000.0, "url": {"label": "KJ00004741138.pdf", "url": "https://nagoya.repo.nii.ac.jp/record/7703/files/KJ00004741138.pdf"}, "version_id": "e8c2ee04-97af-4e34-a76b-16b8990532cf"}]}, "item_language": {"attribute_name": "\u8a00\u8a9e", "attribute_value_mlt": [{"subitem_language": "eng"}]}, "item_resource_type": {"attribute_name": "\u8cc7\u6e90\u30bf\u30a4\u30d7", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "INAA trace element analysis of stream sediments collected from the nortearstern areas of Aichi Prefecture, central Japan", "item_titles": {"attribute_name": "\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_title": "INAA trace element analysis of stream sediments collected from the nortearstern areas of Aichi Prefecture, central Japan"}]}, "item_type_id": "9", "owner": "1", "path": ["336/337/338/895"], "permalink_uri": "https://doi.org/10.18999/joueps.53.15", "pubdate": {"attribute_name": "\u516c\u958b\u65e5", "attribute_value": "2008-02-19"}, "publish_date": "2008-02-19", "publish_status": "0", "recid": "7703", "relation": {}, "relation_version_is_last": true, "title": ["INAA trace element analysis of stream sediments collected from the nortearstern areas of Aichi Prefecture, central Japan"], "weko_shared_id": null}