Spatial distribution of δD-δ18O values of surface and shallow groundwaters from Japan, south Korea and east China
Spatial distribution of δD-δ18O values of surface and shallow groundwaters from Japan, south Korea and east China
复制标题
日本、韩国及中国东部地表水及浅层地下水δD-δ18O值空间分布
DOI:
10.2343/geochemj.28.387
复制
发表时间:
1994
影响因子:
0.8
通讯作者:
M. Kusakabe
中科院分区:
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作者:
C. Mizota;M. Kusakabe
Spatial distribution of δD and δ18O values of surface water and shallow groundwaters from Japan, south Korea and east China was mapped with contours of 10 and 1‰ intervals for δD and δ18O, respectively, on the basis of the data base including more than 600 analyses made in the present and previous studies. The δD and δ18O values generally decrease with increasing the latitude. There is a systematic decrease in δD and δ18O values with contours of close intervals from the coast toward inland of southwestern Japan along the stream of the Kuroshio, a warm current in the Pacific Ocean. The δD and δ18O lows are observed in mountainous inland of central and northern Japan and east China. The trends are comparable with those observed previously for the North American continent. The map will provide fundamental information for the studies of geochemical processes such as hydrology, water-rock interaction, and precipitation of authigenic minerals in which meteoric water is involved.
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