{"@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/1360021391885848576.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1130/g50840.1"}},{"identifier":{"@type":"URI","@value":"https://pubs.geoscienceworld.org/gsa/geology/article-pdf/51/4/366/5804095/g50840.1.pdf"}},{"identifier":{"@type":"HANDLE","@value":"11250/3116473"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Discovery of Holocene ooid shoals in a siliciclastic delta, De Grey River, North West Shelf, Australia"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:title>Abstract</jats:title><jats:p>Onshore and offshore site investigations along the dryland tide-dominated De Grey River delta (northwestern Australia) led to the unexpected discovery of the largest yet-known marine ooid shoals in the Indo-Pacific region. Ooids exhibit up to 60 tangential aragonitic laminae that were formed around fluvial sediment grains during the late Holocene. Covering an area &gt;1250 km2, their spatial extent rivals in size individual ooid shoals from the Bahamas. Shoals appear to be spatially linked with the De Grey River, suggesting that fluvial outputs, combined with a macrotidal range, facilitated the precipitation of the ooids. Following their formation, ooids were reworked through tidal and wave processes along the delta. As a result, the delta sedimentary features, including beach ridges, mouth bars, and distributary channels, are composed of ooids.</jats:p><jats:p>This discovery broadens the range of depositional and climatic environments in which ooids can form and demonstrates that fluvial runoff may not inhibit aragonite precipitation. Such a configuration also provides a unique analogue for ancient ooids found in association with siliciclastic grains and further indicates that the interpretation of typical siliciclastic geomorphologies from geophysical data does not preclude the presence of carbonate grains.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380021391885848587","@type":"Researcher","foaf:name":[{"@value":"Ulysse Lebrec"}],"jpcoar:affiliationName":[{"@value":"1Centre for Energy & Climate Geoscience, School of Earth Sciences, The University of Western Australia, Crawley, WA 6009, Australia"},{"@value":"2Norwegian Geotechnical Institute, Perth, WA 6000, Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021391885848705","@type":"Researcher","foaf:name":[{"@value":"Simon C. Lang"}],"jpcoar:affiliationName":[{"@value":"1Centre for Energy & Climate Geoscience, School of Earth Sciences, The University of Western Australia, Crawley, WA 6009, Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021391885848711","@type":"Researcher","foaf:name":[{"@value":"Victorien Paumard"}],"jpcoar:affiliationName":[{"@value":"1Centre for Energy & Climate Geoscience, School of Earth Sciences, The University of Western Australia, Crawley, WA 6009, Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021391885848586","@type":"Researcher","foaf:name":[{"@value":"Michael J. O’Leary"}],"jpcoar:affiliationName":[{"@value":"1Centre for Energy & Climate Geoscience, School of Earth Sciences, The University of Western Australia, Crawley, WA 6009, Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021391885848716","@type":"Researcher","foaf:name":[{"@value":"Yusuke Yokoyama"}],"jpcoar:affiliationName":[{"@value":"3Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, 277-8564, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021391885848588","@type":"Researcher","foaf:name":[{"@value":"Jorg Hacker"}],"jpcoar:affiliationName":[{"@value":"4Airborne Research Australia Limited, Parafield Airport, Adelaide, SA 5106, Australia"}]},{"@id":"https://cir.nii.ac.jp/crid/1380021391885848591","@type":"Researcher","foaf:name":[{"@value":"Jody Webster"}],"jpcoar:affiliationName":[{"@value":"5Geocoastal Research Group, School of Geosciences, University of Sydney, Sydney, NSW 2050, 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