Dissolved Al, In, and Ce in the eastern Indian Ocean and the Southeast Asian Seas in comparison with the radionuclides 210Pb and 210Po
Dissolved Al, In, and Ce in the eastern Indian Ocean and the Southeast Asian Seas in comparison with the radionuclides 210Pb and 210Po
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DOI：
10.1016/j.gca.2003.07.021
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发表时间：
2004-03-01
影响因子：
5
通讯作者：
Yamamoto, Y
中科院分区：
文献类型：
--
作者：
Obata, H;Nozaki, Y;Yamamoto, Y
为了对不同海洋环境中的难熔金属和活性金属进行比较地球化学研究，涵盖不同的 theta-S 特征、生产力、溶解氧剖面、水和沉积物排放等，我们确定了溶解的垂直剖面（Ce>In，具体取决于颗粒反应性。虽然溶解的 Al 通过颗粒清除沿着水轨迹减少，但溶解的 In 和 Cc 的变化相对较小，这可能是由于两种元素的清除较少。与整个水柱中溶解的 Ce 相当高（> 4 pM）相比在孟加拉湾，溶解的铝浓度仍然较低，表明它对颗粒具有较高的亲和力，因此会被下沉的颗粒物质清除，这与南纬 30 度珀斯盆地中溶解铝从 4 到 6 nM 的观察结果一致。
To carry out comparative geochemical investigation of refractory and reactive metals in different oceanic settings covering different theta-S characteristics, productivity, dissolved oxygen profiles, water and sediment discharge, etc., we have determined the vertical profiles of dissolved (Ce>In, depending upon particle reactivity. Although dissolved Al decreases along the water trajectory by particle scavenging, variations of dissolved In and Cc are relatively small which may be due to less scavenging for both elements. Compared with significantly high (>4 pM) dissolved Ce throughout the water column in the Bay of Bengal, dissolved Al concentration remains low, suggesting that it has higher affinity to particles and hence is scavenged by sinking particulate matter. This is consistent with the observation that the dissolved Al in the Antarctic Intermediate Water (AAIW) decreases from 4 to 6 nM in the 30degreesS Perth Basin to