Depth Profiles of Lanthanide Tetrad Effect in the Western Indian Ocean and their Implications.
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概要
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The depth profiles for degree of the lanthanide tetrad effect are presented for three seawater columns from an area in the western Indian Ocean off Madagascar. The features of the depth profiles for the upper layer of this area show a developed local variation. With the exception of this locality, the profiles as a whole exhibit the middle-valley patterns, in common with those in the North Pacific. The depth corresponding to the middle valley and the maximum value for the lanthanide tetrad effect observed in the column have been estimated for the first time from the curve drawn for the lanthanide tetrad effect profile. A comparison is made between Indian and North Pacific Oceans. There are clear differences between these two oceans in both the water depth of the middle valley and the maximum aberration due to the tetrad effect observed in the column. These characteristics are consistent with a picture presented thus far by oceanography researchers. That is, the difference between the two oceans is considered to reflect a distinction between southern hemisphere and northern hemisphere.
- 日本学士院の論文
著者
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Masuda Akimasa
Department Of Chemistry Faculty Of Science The University Of Tokyo
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SHIMODA Junji
Department of Chemistry, University of Electro-Communications
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SHIMODA Junji
Department of Chemistry, The University of Electro-Communications
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