The critical role of marginal seas in the global carbon cycle and their response to climate and circulation changes are not well understood. In this study, we used long-term archives of sedimentary CaCO₃ data and a conceptual model to systematically determine the spatial and vertical features of the sediment carbonate system in the marginal seas along the Western Pacific Ocean. Our results show that the northward-flowing Antarctic Bottom Water and Lower Circumpolar Deep Water produced shallower calcium carbonate preservation depths as they moved north and became more carbonate-undersaturated. This suggests that the carbonate chemistry in the deep Western Pacific marginal sea basins is mostly governed by the global ocean thermohaline circulation. In contrast, the carbonate system in the deep Japan/East Sea is unique, with limited sedimentary carbonate accumulation due to weak calcification and its internal overturning circulation. Despite differences in the hydrological and ecological settings, the sedimentary calcium carbonate profiles in the Tasman Sea and South Fiji Basin are comparable to those in the Atlantic and Pacific Oceans, reflecting the remarkable influence of open-ocean carbonate chemistry.

中文翻译：

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论西太平洋边缘盆地沉积碳酸盐的堆积与溶解

边缘海在全球碳循环中的关键作用及其对气候和环流变化的反应尚不清楚。_{在这项研究中，我们使用了沉积 CaCO 3}的长期档案数据和概念模型，以系统地确定西太平洋边缘海沉积碳酸盐系统的空间和垂直特征。我们的研究结果表明，向北流动的南极底水和下环极地深水在向北移动时产生了较浅的碳酸钙保存深度并且变得更加碳酸盐不饱和。这表明深西太平洋边缘海盆地的碳酸盐化学主要受全球海洋温盐环流控制。相比之下，日本/东海深部的碳酸盐系统是独特的，由于弱钙化及其内部翻转循环，沉积碳酸盐积累有限。尽管水文和生态环境存在差异，