{"created":"2023-07-25T08:02:49.874292+00:00","id":636,"links":{},"metadata":{"_buckets":{"deposit":"79d40ce7-507d-4092-9b2a-ff4bbf4fdae6"},"_deposit":{"created_by":18,"id":"636","owners":[18],"pid":{"revision_id":0,"type":"depid","value":"636"},"status":"published"},"_oai":{"id":"oai:ir.kagoshima-u.ac.jp:00000636","sets":["228:257:5562","31:32:77"]},"author_link":["106931"],"item_7_biblio_info_5":{"attribute_name":"収録雑誌名","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2005-03-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"34","bibliographicPageStart":"25","bibliographicVolumeNumber":"42","bibliographic_titles":[{"bibliographic_title":"南太平洋海域調査研究報告","bibliographic_titleLang":"ja"},{"bibliographic_title":"Occasional papers","bibliographic_titleLang":"en"}]}]},"item_7_date_6":{"attribute_name":"作成日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2005-03-01","subitem_date_issued_type":"Issued"}]},"item_7_description_4":{"attribute_name":"要約(Abstract)","attribute_value_mlt":[{"subitem_description":"Yoron-jima is a small carbonate island lying in the Ryukyu Island Arc of southern Japan. The island was raised above sea level in the Quaternary period and most of the 21 km^2 land area is underlain by carbonate rock types associated with the regionally important Ryukyu Limestone Group. The island's landscape is characterised by a variety of limestone geomorphic features, such as low angular cliffs, terraces and escarpment at different elevations, vadose caves, and many surface depressions. The occurrence of these formations is determined both by structural influences associated with island uplift and variations in the exposure of different carbonate rocks. The main aim here is to describe Yoron's many dolines and interpret their uneven spatial distribution. Some areas covered by unconsolidated Holocene deposits are almost absent of dolines. Elsewhere, doline clusters are observed on the low-lying western peninsula and in the northern segment of the island. Small dolines (average 89 m) tend to be shallow with regular elliptical morphologies, and are densely clustered (27 per km^2). These have formed on a low elevation marine terrace where there has been minimal structural deformation of the coral limestone bedrock. In contrast, larger (average 158 m) and deeper dolines (5-10 m), more often with irregular or star-shaped plans, are developed in association with major faults or outcrops of rhodolith limestone geology. Aggressive dissolution has also produced large elongated dolines in some coastal positions where tidal fluctuations control the salinity and surface height of the water table. Correlations with depressions elsewhere in the Ryukyu Islands on similar geology suggest that limestone solution rates on Yoron may be 5-10 mm/1000 yrs.","subitem_description_language":"en","subitem_description_type":"Other"},{"subitem_description":"与論島は琉球諸島に属する石灰岩から出来た小さな島である。島は第四期に隆起してでき、全面積21km^2のほとんどが炭酸塩の岩でできあがっている。島の景観は多岐にわたる石灰岩の地形により特徴づけられる。例えば、高台や洞窟、陥没した地域に見られる崖や段丘や急斜面である。これらの地形は島の隆起に伴う構造と異なる種類の炭酸塩の岩の露出により形成される。この論文の目的は与論島に見られる多くの種類のドリーネの説明と一様でないその分布の解釈を行うことである。\n強固でない現世の沈殿物で覆われている地域にはドリーネはほとんど存在しない。島の西部の半島と北部にはドリーネの塊がいたる所に見られる。小さなドリーネ(平均89m)は楕円形状で薄く密に(27/km＾2)見られる。これらは隆起の低い海洋棚田で形成される。これに対して大きくて(平均158m)深い(5-10m)ドリーネは主な断層か石灰岩の露出により形成される。著しい溶解は大きくて長細いドリーネを特定の沿岸域で形成する。おそらく与論島に見られる石灰岩の溶解速度は5-10mm/1000年と考えられる。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_7_publisher_23":{"attribute_name":"公開者・出版者","attribute_value_mlt":[{"subitem_publisher":"鹿児島大学","subitem_publisher_language":"ja"},{"subitem_publisher":"Kagoshima University","subitem_publisher_language":"en"}]},"item_7_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"13450441","subitem_source_identifier_type":"PISSN"}]},"item_7_source_id_9":{"attribute_name":"NII書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN1013531X","subitem_source_identifier_type":"NCID"}]},"item_7_subject_15":{"attribute_name":"NDC","attribute_value_mlt":[{"subitem_subject":"454","subitem_subject_scheme":"NDC"}]},"item_7_text_44":{"attribute_name":"備考","attribute_value_mlt":[{"subitem_text_language":"ja","subitem_text_value":"第1分野 環境, 報告5"}]},"item_7_version_type_14":{"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_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"TERRY, James P.","creatorNameLang":"en"},{"creatorName":"テリー, ジェームス P.","creatorNameLang":"ja"}],"nameIdentifiers":[{"nameIdentifier":"106931","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-10-27"}],"displaytype":"detail","filename":"AN1013531X_v42_p25-34.pdf","filesize":[{"value":"31.6 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"AN1013531X_v42_p25-34.pdf","objectType":"fulltext","url":"https://ir.kagoshima-u.ac.jp/record/636/files/AN1013531X_v42_p25-34.pdf"},"version_id":"6390ec73-5255-4a66-a0ef-b6fada864dc9"}]},"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":"Limestone geomorphology on Yoron Island, central Ryukyu Island Arc, southern Japan","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Limestone geomorphology on Yoron Island, central Ryukyu Island Arc, southern Japan","subitem_title_language":"en"},{"subitem_title":"琉球諸島、与論島における石灰岩に関する地形学的研究","subitem_title_language":"ja"}]},"item_type_id":"7","owner":"18","path":["5562","77"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2011-01-18"},"publish_date":"2011-01-18","publish_status":"0","recid":"636","relation_version_is_last":true,"title":["Limestone geomorphology on Yoron Island, central Ryukyu Island Arc, southern Japan"],"weko_creator_id":"18","weko_shared_id":-1},"updated":"2024-07-04T06:02:56.741869+00:00"}