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调查了用活塞取样器在日本海南部不同水深的海底采到的岩心中生物起源的碳酸钙(有孔虫类)分布情况,复原出过去3万年间日本海的碳酸钙补偿深度的变化。
Investigated the distribution of calcium carbonate (foraminifera) originating from cores in sea cores taken at different depths of sea in Japan’s southern Japan using a piston sampler, and recovered the changes in depth of compensation of calcium carbonate in the Japan Sea over the past 30,000 years.