{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1362825893729036160.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1130/g38560.1"}},{"identifier":{"@type":"URI","@value":"https://pubs.geoscienceworld.org/gsa/geology/article-pdf/45/2/131/6586333/131.pdf"}}],"dc:title":[{"@value":"A new attraction-detachment model for explaining flow sliding in clay-rich tephras"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title>\n               <jats:p>Altered pyroclastic (tephra) deposits are highly susceptible to landsliding, leading to fatalities and property damage every year. Halloysite, a low-activity clay mineral, is commonly associated with landslide-prone layers within altered tephra successions, especially in deposits with high sensitivity, which describes the post-failure strength loss. However, the precise role of halloysite in the development of sensitivity, and thus in sudden and unpredictable landsliding, is unknown. Here we show that an abundance of mushroom cap–shaped (MCS) spheroidal halloysite governs the development of sensitivity, and hence proneness to landsliding, in altered rhyolitic tephras, North Island, New Zealand. We found that a highly sensitive layer, which was involved in a flow slide, has a remarkably high content of aggregated MCS spheroids with substantial openings on one side. We suggest that short-range electrostatic and van der Waals interactions enabled the MCS spheroids to form interconnected aggregates by attraction between the edges of numerous paired silanol and aluminol sheets that are exposed in the openings and the convex silanol faces on the exterior surfaces of adjacent MCS spheroids. If these weak attractions are overcome during slope failure, multiple, weakly attracted MCS spheroids can be separated from one another, and the prevailing repulsion between exterior MCS surfaces results in a low remolded shear strength, a high sensitivity, and a high propensity for flow sliding. The evidence indicates that the attraction-detachment model explains the high sensitivity and contributes to an improved understanding of the mechanisms of flow sliding in sensitive, altered tephras rich in spheroidal halloysite.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1382825893729036167","@type":"Researcher","foaf:name":[{"@value":"Max O. Kluger"}],"jpcoar:affiliationName":[{"@value":"1MARUM–Center for Marine Environmental Sciences, University of Bremen, Leobener Straße, 28359 Bremen, Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036161","@type":"Researcher","foaf:name":[{"@value":"Vicki G. Moon"}],"jpcoar:affiliationName":[{"@value":"2School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036162","@type":"Researcher","foaf:name":[{"@value":"Stefan Kreiter"}],"jpcoar:affiliationName":[{"@value":"1MARUM–Center for Marine Environmental Sciences, University of Bremen, Leobener Straße, 28359 Bremen, Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036163","@type":"Researcher","foaf:name":[{"@value":"David J. Lowe"}],"jpcoar:affiliationName":[{"@value":"2School of Science, University of Waikato, Private Bag 3105, Hamilton 3240, New Zealand"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036168","@type":"Researcher","foaf:name":[{"@value":"G.J. Churchman"}],"jpcoar:affiliationName":[{"@value":"3School of Agriculture, Food and Wine, University of Adelaide, Adelaide, SA 5005, Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036166","@type":"Researcher","foaf:name":[{"@value":"Daniel A. Hepp"}],"jpcoar:affiliationName":[{"@value":"1MARUM–Center for Marine Environmental Sciences, University of Bremen, Leobener Straße, 28359 Bremen, Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036164","@type":"Researcher","foaf:name":[{"@value":"David Seibel"}],"jpcoar:affiliationName":[{"@value":"1MARUM–Center for Marine Environmental Sciences, University of Bremen, Leobener Straße, 28359 Bremen, Germany"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036160","@type":"Researcher","foaf:name":[{"@value":"M. Ehsan Jorat"}],"jpcoar:affiliationName":[{"@value":"4School of Science, Engineering and Technology, Abertay University, Dundee DD11HG, UK"}]},{"@id":"https://cir.nii.ac.jp/crid/1382825893729036165","@type":"Researcher","foaf:name":[{"@value":"Tobias Mörz"}],"jpcoar:affiliationName":[{"@value":"1MARUM–Center for Marine Environmental Sciences, University of Bremen, Leobener Straße, 28359 Bremen, Germany"}]}],"publication":{"publicationIdentifier":[{"@type":"EISSN","@value":"19432682"},{"@type":"PISSN","@value":"00917613"}],"prism:publicationName":[{"@value":"Geology"}],"dc:publisher":[{"@value":"Geological Society of America"}],"prism:publicationDate":"2017-02-01","prism:volume":"45","prism:number":"2","prism:startingPage":"131","prism:endingPage":"134"},"reviewed":"false","url":[{"@id":"https://pubs.geoscienceworld.org/gsa/geology/article-pdf/45/2/131/6586333/131.pdf"}],"createdAt":"2016-12-09","modifiedAt":"2024-07-24","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360021391857486720","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Redox-controlled differential weathering of andesitic pumice: Possible catalytic effects of ferrous/ferric iron on rapid halloysite accumulation in a Holocene tephra layer"}]},{"@id":"https://cir.nii.ac.jp/crid/1361412893259007104","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Fluidized landslides triggered by the liquefaction of subsurface volcanic deposits during the 2018 Iburi–Tobu earthquake, Hokkaido"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001288145610368","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Monitoring active landslides in the Auckland region utilising UAV/structure-from-motion photogrammetry"}]},{"@id":"https://cir.nii.ac.jp/crid/2050588892108499968","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Rheological properties of halloysite soil slurry : a case study of weathered tephra involved in a shallow landslide triggered by the 2018 Eastern Iburi earthquake in Hokkaido, Japan"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1130/g38560.1"},{"@type":"CROSSREF","@value":"10.3208/jgssp.v06.giz01_references_DOI_51icAueDeKvSXNPD21nPByWx6Mo"},{"@type":"CROSSREF","@value":"10.1016/j.catena.2023.107685_references_DOI_51icAueDeKvSXNPD21nPByWx6Mo"},{"@type":"CROSSREF","@value":"10.1186/s40623-022-01623-4_references_DOI_51icAueDeKvSXNPD21nPByWx6Mo"},{"@type":"CROSSREF","@value":"10.1038/s41598-019-48820-y_references_DOI_51icAueDeKvSXNPD21nPByWx6Mo"}]}