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The Journal of the Geological Society of Japan最新文献

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Geodiversity in Geopark Chichibu
The Journal of the Geological Society of Japan Pub Date : 2022-08-17 DOI: 10.5575/geosoc.2022.0010
H. Takagi, KEN-ICHI Yoshida
{"title":"Geodiversity in Geopark Chichibu","authors":"H. Takagi, KEN-ICHI Yoshida","doi":"10.5575/geosoc.2022.0010","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0010","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122796213","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}
引用次数: 0
Very thickly bedded event deposit in the lower to middle Miocene Shirahama Formation, southwest Japan 日本西南部中新世下至中白滨组极厚层状事件沉积
The Journal of the Geological Society of Japan Pub Date : 2022-06-23 DOI: 10.5575/geosoc.2022.0011
Satoru Imai, Masakazu Nara
{"title":"Very thickly bedded event deposit in the lower to middle Miocene Shirahama Formation, southwest Japan","authors":"Satoru Imai, Masakazu Nara","doi":"10.5575/geosoc.2022.0011","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0011","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134106727","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}
引用次数: 0
Ejecta stratigraphy and eruptive sequence of the Eruptive Episode M in Towada Volcano, Northeast Japan 日本东北部武和火山喷发M期喷出物地层学与喷发层序
The Journal of the Geological Society of Japan Pub Date : 2022-06-21 DOI: 10.5575/geosoc.2022.0009
T. Kudo
{"title":"Ejecta stratigraphy and eruptive sequence of the Eruptive Episode M in Towada Volcano, Northeast Japan","authors":"T. Kudo","doi":"10.5575/geosoc.2022.0009","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0009","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114199246","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}
引用次数: 1
Geology and petrography of the Late Cretaceous Nagato-Hōhoku caldera, Yamaguchi Prefecture, Japan: 晚白垩世地质岩石学Nagato-Hōhoku日本山口县破火山口;
The Journal of the Geological Society of Japan Pub Date : 2022-06-21 DOI: 10.5575/geosoc.2022.0004
T. Imaoka, A. Babazono, Takafumi Sonehara, Toshiyuki Ikawa, Hidetaka Nagamatsu
{"title":"Geology and petrography of the Late Cretaceous Nagato-Hōhoku caldera, Yamaguchi Prefecture, Japan:","authors":"T. Imaoka, A. Babazono, Takafumi Sonehara, Toshiyuki Ikawa, Hidetaka Nagamatsu","doi":"10.5575/geosoc.2022.0004","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0004","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131213442","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}
引用次数: 0
Applications of micro-X-ray fluorescence mapping to iron bands in iron-oxide concretion to evaluate its formation and reaction rate 微x射线荧光定位在氧化铁结块中铁带的应用，评价其形成和反应速率
The Journal of the Geological Society of Japan Pub Date : 2022-01-15 DOI: 10.5575/geosoc.2022.0008
N. Katsuta, S. Sirono, Ayako Umemura, Hirokazu Kawahara, H. Yoshida
{"title":"Applications of micro-X-ray fluorescence mapping to iron bands in iron-oxide concretion to evaluate its formation and reaction rate","authors":"N. Katsuta, S. Sirono, Ayako Umemura, Hirokazu Kawahara, H. Yoshida","doi":"10.5575/geosoc.2022.0008","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0008","url":null,"abstract":": Fe oxide Liesegang bands have often been observed in sedimentary and igneous rocks, and they are formed during weathering and alteration by water–rock interactions. In this study, micro-X-ray fluo rescence ( μ -XRF) mapping was used to study the Fe bands in an Fe oxide concretion from the Jurassic Navajo","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132958351","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}
引用次数: 0
Modes of occurrence of concretions containing ammonoids from the Upper Cretaceous in Japan 日本上白垩纪含菊石结核的赋存模式
The Journal of the Geological Society of Japan Pub Date : 2022-01-15 DOI: 10.5575/geosoc.2022.0001
A. Misaki, Yusuke Muramiya
{"title":"Modes of occurrence of concretions containing ammonoids from the Upper Cretaceous in Japan","authors":"A. Misaki, Yusuke Muramiya","doi":"10.5575/geosoc.2022.0001","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0001","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"111 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115762213","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}
引用次数: 0
Event deposits recognized in the lowlands along the Tsugaru Strait, Hokkaido, Japan 日本北海道津加鲁海峡沿岸低地发现的事件沉积物
The Journal of the Geological Society of Japan Pub Date : 2022-01-15 DOI: 10.5575/geosoc.2021.0035
Y. Kase, Gentaro Kawakami, H. Koyasu, Ryo Takahashi, T. Sagayama, Kenji Nishina
{"title":"Event deposits recognized in the lowlands along the Tsugaru Strait, Hokkaido, Japan","authors":"Y. Kase, Gentaro Kawakami, H. Koyasu, Ryo Takahashi, T. Sagayama, Kenji Nishina","doi":"10.5575/geosoc.2021.0035","DOIUrl":"https://doi.org/10.5575/geosoc.2021.0035","url":null,"abstract":"Geological records of tsunamis along the Tsugaru Strait in southwestern Hokkaido, Japan, were investigated. Event deposits were identified in lowland peat at four survey sites located 100–450 m from the present coastline and 2.2–6.6 m above the present sea level. The event deposits are several centimeters thick and consist of well-sorted fineto medium-grained sand. Based on radiocarbon dating and tephrochronology, the sedimentary ages of the event deposits were determined to be 589–516, 734–670, 1656–1538, 1745–1639, 2401–2265, and 2771–2618 cal yBP. Comparison of the clastic composition and roundness of the event deposits with those of nearby beach and river sands revealed that most of the provenance of the event deposits are beach sands. Whereas, some of the event deposits were sourced from volcanic-ash sands, which were distinct from both beach and river sands. The chemical compositions of volcanic glasses and mineral grains indicate that the volcanic ash did not originate from any known Quaternary tephra in this region. Considering the source of the event deposits, as well as the inundation distance from the coastline and the infrequency of events, the event deposits were likely formed by tsunamis. Volcanic-ash sands may have been widespread in the seafloor beyond the foreshore and were transported by tsunamis. From the sedimentary ages and depositional rates of event deposits and peat, the youngest event deposits were formed in the 13– 15th century, and may be correlated with a tsunami that reached the eastern coast of Hokkaido in the 13–14th century or the AD 1454 Kyotoku tsunami. Neither the well-known 17th century tsunami that was triggered along the Pacific coast of eastern Hokkaido nor the AD 1611 Keicho-sanriku tsunami appear to have left deposits in this area. These results can be used to determinate accurately the source area of 17th century tsunamis.","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114250617","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}
引用次数: 2
Erratum : Re-examination of the lithostratigraphy of Hokusetsu Subgroup in the southeastern part of the Miocene Shidara basin, eastern Aichi Prefecture, central Japan: Proposal of the Umedaira Sandstone Member 勘误:日本中部爱知县东部中新世志达拉盆地东南部北越亚群岩石地层学的再检验:梅德伊拉砂岩段的建议
The Journal of the Geological Society of Japan Pub Date : 2022-01-15 DOI: 10.5575/geosoc.erratum_2022.01
Sakurako Yabuta, M. Takeuchi
{"title":"Erratum : Re-examination of the lithostratigraphy of Hokusetsu Subgroup in the southeastern part of the Miocene Shidara basin, eastern Aichi Prefecture, central Japan: Proposal of the Umedaira Sandstone Member","authors":"Sakurako Yabuta, M. Takeuchi","doi":"10.5575/geosoc.erratum_2022.01","DOIUrl":"https://doi.org/10.5575/geosoc.erratum_2022.01","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"238 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120932675","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}
引用次数: 0
14C ages of dead precious coral Pleurocorallium elatius off Zanpa Cape of Okinawajima Island, Ryukyu Archipelago and their geological significance 琉球群岛冲绳岛桑帕角珍贵珊瑚死亡的14C年龄及其地质意义
The Journal of the Geological Society of Japan Pub Date : 2022-01-15 DOI: 10.5575/geosoc.2022.0006
F. Kumon, H. Tokuyama, T. Okumura, Masayoshi Arai, K. Arai
{"title":"14C ages of dead precious coral Pleurocorallium elatius off Zanpa Cape of Okinawajima Island, Ryukyu Archipelago and their geological significance","authors":"F. Kumon, H. Tokuyama, T. Okumura, Masayoshi Arai, K. Arai","doi":"10.5575/geosoc.2022.0006","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0006","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123344972","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}
引用次数: 0
Mode of occurrence and origin of the kaolin mineral-rich gravelly sediments at Rendaiji, Yuzawa City, Akita Prefecture, NE Japan 日本秋田县汤泽市仁大寺富高岭土矿物砾质沉积物赋存方式及成因
The Journal of the Geological Society of Japan Pub Date : 2022-01-15 DOI: 10.5575/geosoc.2022.0017
K. Kano, D. Ishiyama, T. Ohba, Y. Fujimoto, T. Ohguchi
{"title":"Mode of occurrence and origin of the kaolin mineral-rich gravelly sediments at Rendaiji, Yuzawa City, Akita Prefecture, NE Japan","authors":"K. Kano, D. Ishiyama, T. Ohba, Y. Fujimoto, T. Ohguchi","doi":"10.5575/geosoc.2022.0017","DOIUrl":"https://doi.org/10.5575/geosoc.2022.0017","url":null,"abstract":"","PeriodicalId":444224,"journal":{"name":"The Journal of the Geological Society of Japan","volume":"135 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115558989","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}
引用次数: 0
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