{"title":"Sedimentary facies and the recognition of event deposits intercalated in lacustrine varved deposits in the Middle Pleistocene Miyajima Formation : Sedimentary processes which are taken account of lateral changes","authors":"Hana Sasaki, Y. Onishi, Yoshiro Ishihara","doi":"10.4116/JAQUA.58.237","DOIUrl":"https://doi.org/10.4116/JAQUA.58.237","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126766594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Low-frequency events, such as earthquakes or eruptions, that can cause large-scale disasters are a major issue for society. These events have a long occurrence interval, and their event deposits, which are preserved for a long time, are the key to revealing their real image. In Beppu Bay, event deposit research began with active fault studies in the 1980s, and it has subsequently been conducted by many researchers and from several perspectives. This accumulated knowledge has been revealing not only the paleo-event records but also their complicated recording processes. It is important for the development of event deposit analysis to understand all recording processes, by combining these event deposit records with paleo environmental information, ancient docu-ment records, and prospective simulations.
{"title":"History of event deposit studies in Beppu Bay, Kyushu, southwest Japan","authors":"Keitaro Yamada","doi":"10.4116/JAQUA.58.229","DOIUrl":"https://doi.org/10.4116/JAQUA.58.229","url":null,"abstract":"Low-frequency events, such as earthquakes or eruptions, that can cause large-scale disasters are a major issue for society. These events have a long occurrence interval, and their event deposits, which are preserved for a long time, are the key to revealing their real image. In Beppu Bay, event deposit research began with active fault studies in the 1980s, and it has subsequently been conducted by many researchers and from several perspectives. This accumulated knowledge has been revealing not only the paleo-event records but also their complicated recording processes. It is important for the development of event deposit analysis to understand all recording processes, by combining these event deposit records with paleo environmental information, ancient docu-ment records, and prospective simulations.","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130238025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quaternary tectonics in central Kyushu and the 2016 Kumamoto Earthquake","authors":"K. Takemura","doi":"10.4116/JAQUA.58.91","DOIUrl":"https://doi.org/10.4116/JAQUA.58.91","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122596208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Paleo-tsunami deposit research on the Sanriku Coast since the 2011 Tohoku-oki earthquake","authors":"D. Ishimura","doi":"10.4116/JAQUA.58.175","DOIUrl":"https://doi.org/10.4116/JAQUA.58.175","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123126520","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Preface to the special issue on “Terrestrial processes, Deposits and History”","authors":"T. Sugai, Y. Kariya, T. Azuma","doi":"10.4116/jaqua.58.1","DOIUrl":"https://doi.org/10.4116/jaqua.58.1","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127269502","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Studies on Southeast Asian rivers under environmental changes in rainy and dry seasons","authors":"Naoko Nagumo","doi":"10.4116/jaqua.58.13","DOIUrl":"https://doi.org/10.4116/jaqua.58.13","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125159898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Ohtsuka, M. Shibazaki, Koyuki Tomi, A. Kotaki, H. Takahara, Ryoma Hayashi, Toshikatsu Yasuno
{"title":"Estimating sedimentary environment of a Pleistocene sediment in Kyotango City, Kyoto Prefecture, Japan, with the first report of Pseudopodosira kosugii from the Pleistocene series on the Japan Sea Coast","authors":"T. Ohtsuka, M. Shibazaki, Koyuki Tomi, A. Kotaki, H. Takahara, Ryoma Hayashi, Toshikatsu Yasuno","doi":"10.4116/JAQUA.58.57","DOIUrl":"https://doi.org/10.4116/JAQUA.58.57","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130368968","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pleistocene marine terrace show uplifting trend on a timescale of 10 5 years along the northernmost part of the Sanriku coast. However, chronology of marine terraces along other parts of the coast has not progressed until now because of lack of tephra layering. In addition, distribution of flat surfaces previously interpreted as marine terraces is fragmentary along the southern Sanriku coast. These geomorphological and geological studies suggest that the Sanriku coast should be seg-mented into multiple deformation areas when assessing crustal deformation related to a megathrust earthquake. For the segmentation of crustal deformation area, continuing analyses of incised valley fill succession and reconsideration of the origin and chronology of flat surfaces previously interpreted as marine terraces are needed. OSL dating method is expected to clarify the formation age of marine terraces distributed along the Sanriku coast.
{"title":"Current situation and issues of geomorphological and geological researches along the Sanriku coast, Japan, for clarification of the earthquake cycle","authors":"Y. Niwa","doi":"10.4116/JAQUA.58.3","DOIUrl":"https://doi.org/10.4116/JAQUA.58.3","url":null,"abstract":"Pleistocene marine terrace show uplifting trend on a timescale of 10 5 years along the northernmost part of the Sanriku coast. However, chronology of marine terraces along other parts of the coast has not progressed until now because of lack of tephra layering. In addition, distribution of flat surfaces previously interpreted as marine terraces is fragmentary along the southern Sanriku coast. These geomorphological and geological studies suggest that the Sanriku coast should be seg-mented into multiple deformation areas when assessing crustal deformation related to a megathrust earthquake. For the segmentation of crustal deformation area, continuing analyses of incised valley fill succession and reconsideration of the origin and chronology of flat surfaces previously interpreted as marine terraces are needed. OSL dating method is expected to clarify the formation age of marine terraces distributed along the Sanriku coast.","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130090969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fossil trees in dammed lake deposits formed by the Dondokosawa rock avalanche of the late 9th century in the Akaishi Mountains, the Southern Japan Alps","authors":"Takashi Kimura, R. Yamada, Y. Kariya","doi":"10.4116/JAQUA.58.65","DOIUrl":"https://doi.org/10.4116/JAQUA.58.65","url":null,"abstract":"","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116897818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper reviews recent (from 2000 to 2016) progress in cold region Quaternary science studies undertaken by Japanese researchers in domestic and overseas sites. Studies on glacial processes, periglacial processes, and landslide processes have progressed during the past 17 years, and many peer-reviewed papers have been published in national and international journals. However, the current robust growth does not seem likely to continue for the next several decades due to aging and depopulation of researchers in this field. In addition, it was found that the Quaternary Research (Daiyonki-kenkyu), a periodical journal of the Japan Association for Quaternary Research (JAQUA), has not been chosen by researchers as a venue for publishing research papers. A major struc-tural reform of JAQUA seems to be necessary. Outreach and educational programs are also required to attract new members to JAQUA.
{"title":"Cold region Quaternary science for earth surface processes and environmental changes","authors":"Y. Kariya","doi":"10.4116/JAQUA.58.29","DOIUrl":"https://doi.org/10.4116/JAQUA.58.29","url":null,"abstract":"This paper reviews recent (from 2000 to 2016) progress in cold region Quaternary science studies undertaken by Japanese researchers in domestic and overseas sites. Studies on glacial processes, periglacial processes, and landslide processes have progressed during the past 17 years, and many peer-reviewed papers have been published in national and international journals. However, the current robust growth does not seem likely to continue for the next several decades due to aging and depopulation of researchers in this field. In addition, it was found that the Quaternary Research (Daiyonki-kenkyu), a periodical journal of the Japan Association for Quaternary Research (JAQUA), has not been chosen by researchers as a venue for publishing research papers. A major struc-tural reform of JAQUA seems to be necessary. Outreach and educational programs are also required to attract new members to JAQUA.","PeriodicalId":106287,"journal":{"name":"The Quaternary Research (daiyonki-kenkyu)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123452051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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