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dc.rights.licenseAtribución-NoComercial 4.0 Internacional
dc.contributor.authorMori, H
dc.contributor.authorShimoyama, S
dc.contributor.authorSoejima, K
dc.date.accessioned2019-07-03T14:59:36Z
dc.date.available2019-07-03T14:59:36Z
dc.date.issued2012
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/72209
dc.description.abstractThe complex coastline of north-western Kyushu, Japan, consisting of cliffs, steep-sided inlets and archipelagos, has resulted from subsidence in mountainous terrain; the region's populated river valleys,having narrow alluvial plains, often suffer rock avalanches. The Ainoura plain is one such alluvial plain. Excavation of the Monzen ruins on the Ainoura Plain by the Nagasaki Prefectural Board of Educationhas revealed the plain's geomorphic history regarding how the gravels and associated muds and sands were deposited during the last several thousand years. Regarding alluvial succession, mud and sand firstfilled in the trough, possibly as part of the transgression caused by the Holocene climatic optimum, and gravel later began to replace parts of the sand and mud layers by successive erosion and sedimentation,thereby raising riverbed level. It was confirmed that such conglomerate from the Ainoura plain was derived from the Hokusho landslide area in the hinterland because there is no conglomerate layer inthe Hino plain (a small plain southeast of the Ainoura plain). The Ainoura River's thalweg shows that the Monzen ruins are located at a sudden reduction in its gradient, thereby accounting for the thicknessof coarse clastic material in that area. The reconstructed Ainoura plain's paleoshoreline during the Holocene climatic optimum is also reported. The paleoshoreline did not move much until people beganto reclaim land; it would thus be expected that the similar deposition would happened on the Ainoura plain inside this paleoshoreline.
dc.format.mimetypeapplication/pdf
dc.language.isospa
dc.publisherUNIVERSIDAD NACIONAL DE COLOMBIA
dc.relationhttp://revistas.unal.edu.co/index.php/esrj/article/view/37612
dc.relation.ispartofUniversidad Nacional de Colombia Revistas electrónicas UN Earth Sciences Research Journal
dc.relation.ispartofEarth Sciences Research Journal
dc.relation.ispartofseriesEarth Sciences Research Journal; Vol. 16, núm. 2 (2012) Earth Sciences Research Journal; Vol. 16, núm. 2 (2012) 2339-3459 1794-6190
dc.rightsDerechos reservados - Universidad Nacional de Colombia
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.titleThe geomorphic history of the ainoura plain, kyushu, japan, based on excavation of the monzen ruins
dc.typeArtículo de revista
dc.type.driverinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.eprintshttp://bdigital.unal.edu.co/36682/
dc.identifier.eprintshttp://bdigital.unal.edu.co/36682/2/
dc.relation.referencesMori, H and Shimoyama, S and Soejima, K (2012) The geomorphic history of the ainoura plain, kyushu, japan, based on excavation of the monzen ruins. Earth Sciences Research Journal; Vol. 16, núm. 2 (2012) Earth Sciences Research Journal; Vol. 16, núm. 2 (2012) 2339-3459 1794-6190 .
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.subject.proposalalluvial plain
dc.subject.proposalHokusyo landslide
dc.subject.proposalKitamatsuura basalt
dc.subject.proposalKyushu
dc.subject.proposaltransgression.
dc.type.coarhttp://purl.org/coar/resource_type/c_6501
dc.type.coarversionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.contentText
dc.type.redcolhttp://purl.org/redcol/resource_type/ART
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2


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Atribución-NoComercial 4.0 InternacionalThis work is licensed under a Creative Commons Reconocimiento-NoComercial 4.0.This document has been deposited by the author (s) under the following certificate of deposit