Quantification of aeolian dust (Kosa) contribution to the Japan Sea sediments and its variation during the last 200 ky.
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- Tada Ryuji
- Geological Institute, University of Tokyo
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- Irino Tomohisa
- Geological Institute, University of Tokyo
書誌事項
- 公開日
- 2000
- DOI
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- 10.2343/geochemj.34.59
- 公開者
- 一般社団法人日本地球化学会
この論文をさがす
説明
In order to reconstruct past variations in the aeolian dust (Kosa) contribution to the Japan Sea, and to establish a direct link between terrestrial and marine climatic records, we have applied statistical procedures to distinguish and quantify detrital subcomponents within the detrital fraction of the late Quaternary hemipelagic sediments in the Japan Sea. Q-mode factor analysis with varimax and oblique rotation of the factors followed by multiple-regression analysis between mineral composition and factor loadings was conducted using six “detrital” elements. Four detrital subcomponents were defined, which are attributed to Kosa derived from “typical” loess, Kosa from “weathered” loess, and fine and coarse arc-derived detritus, respectively, based on comparisons with the chemical and mineral compositions of probable source materials. Using these detrital subcomponents, the variation in Kosa fraction was reconstructed for the last 200 ky. The results reveal millennial-scale as well as glacial-interglacial scale variations in Kosa contribution. Especially, millennial-scale variability of Kosa contribution suggests the presence of high frequency variation in summer monsoon precipitation in the central to east Asia during the last 200 ky.
収録刊行物
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- ＧＥＯＣＨＥＭＩＣＡＬ ＪＯＵＲＮＡＬ
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ＧＥＯＣＨＥＭＩＣＡＬ ＪＯＵＲＮＡＬ 34 (1), 59-93, 2000
一般社団法人日本地球化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679526511488
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- NII論文ID
- 130003904633
- 10008804756
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- NII書誌ID
- AA00654975
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- COI
- 1:CAS:528:DC%2BD3cXitVemurs%3D
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- ISSN
- 18805973
- 00167002
- https://id.crossref.org/issn/00167002
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- NDL書誌ID
- 5314247
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- 本文言語コード
- en
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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
