A tale of two seas:: Reservoir age correction values (R, ΔR) for the Sakhalin Island (Sea of Japan and Okhotsk Sea)
A tale of two seas:: Reservoir age correction values (R, ΔR) for the Sakhalin Island (Sea of Japan and Okhotsk Sea)
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DOI：
10.1016/j.nimb.2007.01.308
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发表时间：
2007-06-01
影响因子：
1.3
通讯作者：
Razjigaeva, N. G.
中科院分区：
文献类型：
--
作者：
Kuzmin, Y. V.;Burr, G. S.;Razjigaeva, N. G.
本文介绍了库页岛、日本海和鄂霍次克海核弹前海洋软体动物贝壳的储藏年龄测定。这些样本是从1905年至1945年间创建的日本垃圾处理场收集的。贝壳的放射性碳分析被用来建立每个地点的海相储集层年龄校正。日本海的三角洲R值为+95+/-60年，与之前的数据一致。鄂霍次克海的R值为+578+/-50年。这两个地点的水库年龄差异很大，原因是地表水的来源明显不同。日本海的水源是对马流，这是黑潮的一个分支，起源于赤道太平洋，Delta R值接近海洋平均值。鄂霍次克海的主要水源是Oyashio洋流，它从开阔的北太平洋的白令海输送水。与赤道太平洋的水域相比，这一来源的碳-14是枯竭的。南千岛群岛(泽勒尼岛和尤里岛)反映了俄亥俄和黑潮的混合水域，AR值为+354+/-23年。(C)2007 Elsevier B.V.保留所有权利。
This paper presents reservoir age determinations of pre-bomb marine mollusc shells from Sakhalin Island, Sea of Japan and Okhotsk Sea. The samples were collected from Japanese waste disposal sites created between 1905 and 1945. Radiocarbon analyses of the shells are used to establish marine reservoir age corrections for each site. The Delta R value for the Sea of Japan, +95 +/- 60 years, is consistent with previous data. The Delta R value for the Okhotsk Sea is found to be +578 +/- 50 years. The large difference in reservoir age between the two locations results from significantly different sources of surface water. The water source for the Sea of Japan is the Tsushima Current, a branch of the Kuroshio Current that originates in the equatorial Pacific and has a Delta R value close to the mean ocean value. The primary water source for the Okhotsk Sea is the Oyashio Current, which transports water from the Bering Sea in the open Northern Pacific. This source is depleted with C-14, as compared with waters of the equatorial Pacific. The southern Kuriles (Zeleny and Yuri islands) reflect a mixture of Oyashio and Kuroshio waters, with a AR value of +354 +/- 23 years. (c) 2007 Elsevier B.V. All rights reserved.