{"created":"2023-03-31T01:46:14.067754+00:00","id":4160,"links":{},"metadata":{"_buckets":{"deposit":"e4e5c4df-d5f3-43d1-b654-9c7ec207e9af"},"_deposit":{"id":"4160","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"4160"},"status":"published"},"_oai":{"id":"oai:nied-repo.bosai.go.jp:00004160","sets":[]},"author_link":[],"item_10001_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-08"},"bibliographicIssueNumber":"6","bibliographicPageEnd":"1519","bibliographicPageStart":"1509","bibliographicVolumeNumber":"74","bibliographic_titles":[{"bibliographic_title":"BULLETIN OF VOLCANOLOGY","bibliographic_titleLang":"en"}]}]},"item_10001_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Measurements of visible and diffuse gas emission were conducted in 2006 at the summit of Sierra Negra volcano, Galapagos, with the aim to better characterize degassing after the 2005 eruption. A total SO2 emission of 11 +/- 2 t day(-1) was derived from miniature differential optical absorption spectrometer (mini-DOAS) ground-based measurements of the plume emanating from the Mini Azufral fumarolic area, the most important site of visible degassing at Sierra Negra volcano. Using a portable multigas system, the H2S/SO2, CO2/SO2, and H2O/SO2 molar ratios in the Mina Azufral plume emissions were found to be 0.41, 52.2, and 867.9, respectively. The corresponding H2O, CO2, and H2S emission rates were 562, 394, and 3 t day(-1), respectively. The total output of diffuse CO2 emissions from the summit of Sierra Negra volcano was 990 +/- 85 t day(-1), with 605 t day(-1) being released by a deep source. The diffuse-to-plume CO2 emission ratio was about 1.5. Mina Azufral fumaroles released gasses containing 73.6 mol% of H2O; the main noncondensable components amounted to 97.4 mol% CO2, 1.5 mol% SO2, 0.6 mol% H2S, and 0.35 mol% N-2. The higher H2S/SO2 ratio values found in 2006 as compared to those reported before the 2005 eruption reveal a significant hydrothermal contribution to the fumarolic emissions. He-3/He-4 ratios measured at Mina Azufral fumarolic discharges showed values of 17.88 +/- 0.25 R (A) , indicating a mid-ocean ridge basalts (MORB) and a Galapagos plume contribution of 53 and 47 %, respectively.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_10001_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"SPRINGER","subitem_publisher_language":"en"}]},"item_10001_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1007/s00445-012-0610-4"}}]},"item_10001_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1432-0819","subitem_source_identifier_type":"EISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Eleazar Padron","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Pedro A. Hernandez","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Nemesio M. Perez","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Theofilos Toulkeridis","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Gladys Melian","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Jose Barrancos","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Giorgio Virgili","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Hirochika Sumino","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Kenji Notsu","creatorNameLang":"en"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_title":"Fumarole/plume and diffuse CO2 emission from Sierra Negra caldera, Galapagos archipelago","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Fumarole/plume and diffuse CO2 emission from Sierra Negra caldera, Galapagos archipelago","subitem_title_language":"en"}]},"item_type_id":"40001","owner":"1","path":["1670839190650"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2023-03-30"},"publish_date":"2023-03-30","publish_status":"0","recid":"4160","relation_version_is_last":true,"title":["Fumarole/plume and diffuse CO2 emission from Sierra Negra caldera, Galapagos archipelago"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-03-31T01:46:15.789880+00:00"}