書誌事項
- タイトル別名
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- Spatial Distribution with the Drilling Database on the Basal Gravel Bed of the Namba Formation in the Osaka Plain, Southwest Japan
- ボーリング データベース カラ ミタ オオサカ ヘイヤ ナンバルイソウ キテイレキソウ ノ ブンプ
- 公開日
- 2004
- DOI
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- 10.4116/jaqua.43.253
- 公開者
- 日本第四紀学会
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説明
The Namba Formation in Osaka Plain is defined as the deposits after the Last Glacial Maximum stage. The gravel bed below the Namba Formation is called the Tenma Formation, deposited during the Last Glacial stage. But the stratigraphy on this gravel bed has not been demonstrated sufficiently with stratigraphic data. In this paper, the distribution of this gravel bed is investigated using many drilling data integrated in the Database for Information of Ground (DIG) constructed by the Geo-database Information Committee in Kansai. As a result of this study, the gravel bed 4-7 meters thick filling the buried valley along the Yodo, Ina, and Daini-Neya (Yamato) Rivers is correlated with the lowermost part of the Namba Formation deposited from 2ka to 1ka. The buried valley eroded from the alternate sand and gravel intercalating peat layer deposited during the Last Glacial stage to the Ma12 marine clay bed deposited during the Last Inter-glacial stage. The lower and middle parts of the Namba Formation conformably overlie the gravely lowermost part at the river mouth area of the Yodo River, while overlapping at the upstream area in the margin of the Osaka Plain. Additionally, the paleomorphologic feature of the Osaka Plain at 2ka is presented with the basal plane on the Namba Formation, including the lowermost part.
収録刊行物
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- 第四紀研究
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第四紀研究 43 (4), 253-264, 2004
日本第四紀学会
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詳細情報 詳細情報について
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- CRID
- 1390001206496980352
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- NII論文ID
- 10013453696
- 10020955563
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- NII書誌ID
- AN0034136X
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- ISSN
- 18818129
- 04182642
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- NDL書誌ID
- 7052567
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- OpenAIRE
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- 抄録ライセンスフラグ
- 使用不可