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仙台北部丘陵の最上部中新統亀岡層の地質年代と教材化
https://mue.repo.nii.ac.jp/records/861
https://mue.repo.nii.ac.jp/records/861a53f801d-2ab5-4cda-9f73-150a9e97166a
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
仙台北部丘陵の最上部中新統亀岡層の地質年代と教材化 (12.2 MB)
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| アイテムタイプ | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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| 公開日 | 2020-03-04 | |||||
| タイトル | ||||||
| タイトル | 仙台北部丘陵の最上部中新統亀岡層の地質年代と教材化 | |||||
| タイトル | ||||||
| タイトル | Geological age of the Uppermost Miocene Kameoka Formation and application to geology-teaching subjects in northern hills of the Sendai area | |||||
| 言語 | en | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | departmental bulletin paper | |||||
| 著者 |
川村, 寿郎
× 川村, 寿郎× 菅澤, 牡丹× 千葉, 美里× 檀原, 徹× 岩野, 英樹 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Late Miocene and Pliocene strata are widely distributed in the northern hills of Sendai area. Those strata have been often utilized to teach geology subjects of science in many schools located on the hills. Among the strata, we focus the terrestrial Kameoka Formation which have been less detailed in previous studies, in contrast to the overlying marine Tatsunokuchi Formation bearing abundant fossils. The lower part of the Kameoka Formation, unconformably covering the Upper Miocene strata, consists of tuffaceous and coarse deposits of braided-river origin. In turn, the upper part is predominated with lignite, tuff, and muddy to sandy deposits, showing finingupward piles of meandering-river plain origin. Zircon grains of tuffaceous siltstone at the upper horizon are dated to 5.7±0.2 Ma as fission-track age by the LA-ICP-MS-FT method. This age is appropriate as depositional time of the formation in lights of the local chronostratigraphy integrated by marine-microfossil biostratigraphic correlation and radiometric dating. Knowledge related to the Kameoka Formation are useful to treat the geology-teaching subjects along evidences and estimations including; geological structure and extension of strata between hill surface and urban underground in the Sendai area, unconformity forming process, determination for depositional age of the strata, depositional environments of the terrestrial strata, ancient vegetation andpaleoclimate, and marine regression and transgression. |
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| 書誌情報 |
宮城教育大学紀要 en : Bulletin of Miyagi University of Education 巻 54, p. 185-196, 発行日 2020-01-30 |
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| 出版者 | ||||||
| 出版者 | 宮城教育大学 | |||||
