Identification of Tephra Deposits Overlying and/or Underlying Paleo-red Soils in Southern Kyushu, Japan
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- AKAGI Isao
- Faculty of Agriculture, Miyazaki University
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- INOUE Yudzuru
- Faculty of Agriculture, Miyazaki University
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- TAKAKI Hiroshi
- Faculty of Agriculture, Miyazaki University
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- NAGATOMO Yoshitaka
- Faculty of Agriculture, Miyazaki University
Bibliographic Information
- Other Title
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- 九州南部に分布する古赤色土の上・下位に存在するテフラの同定・対比
- キュウシュウ ナンブ ニ ブンプ スル コ セキショクド ノ ジョウ カイ ニ ソンザイ スル テフラ ノ ドウテイ タイヒ
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Description
To estimate the genetical period of the paleo-red soils based on tephrochronology, some tephra deposits overlying and/or underlying the paleo-red soils in Southern Kyushu were identified through the analysis of chemical composition of ferromagnetic minerals in them. The results obtained are as follows; 1) In Miyazaki Plain, Kakuto tephra (ca.340 ka) deposited between the paleo-red soil layer I and the pareo-red soil layer II in the profile of Higashibaru, and Ata-Torihama tephra (200-250 ka) was intercalated in the gravel bed under the paleo-red soil in profile of Nishi-azehara. 2) In Izumi Plain, Ata-Torihama tephra was intercalated in the gravel bed under the paleo-red soil in the profile of Obaru. 3) In Tanegashima, Kikai-Tozurahara tephra (90-95 ka) and Ata tephra (95-110 ka) covered the paleo-red soil in the profile of Tsubakiyama. These results suggest that the genesis of paleo-red soils began before 340 ka and lasted till 95-110 ka in Soutern Kyushu.
Journal
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- Pedologist
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Pedologist 46 (1), 2-13, 2002-06-30
Japanese Society of Pedology
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Keywords
Details 詳細情報について
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- CRID
- 1390845712969616000
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- NII Article ID
- 110009428131
- 10011771308
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- NII Book ID
- AN00223512
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- ISSN
- 21897336
- 00314064
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- NDL BIB ID
- 6259575
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed