Biogenic opal indicating less productive northwestern North Pacific during the glacial ages
Biogenic opal indicating less productive northwestern North Pacific during the glacial ages
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DOI：
10.1029/2001gl014320
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发表时间：
2002-08
影响因子：
5.2
通讯作者：
H. Narita;Masayasu Sato;S. Tsunogai;M. Murayama;M. Ikehara;T. Nakatsuka;M. Wakatsuchi;N. Harada;Yukika Ujiié
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文献类型：
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作者：
H. Narita;Masayasu Sato;S. Tsunogai;M. Murayama;M. Ikehara;T. Nakatsuka;M. Wakatsuchi;N. Harada;Yukika Ujiié
来自鄂霍次克海和邻近北太平洋沉积物的生物蛋白石和冰筏碎屑 (IRD) 数据显示，在末次盛冰期期间，蛋白石产量显着减少，海冰覆盖区域向南推进，导致北太平洋西北部生物高产区南移。这意味着北太平洋西北部排放到大气中的二氧化碳大幅减少，北太平洋温带二氧化碳封存量显着增加。这可能是末次冰期大气二氧化碳的额外二氧化碳减排机制。
Biogenic opal and ice‐rafted detritus (IRD) data from sediments in the Okhotsk Sea and the neighboring North Pacific revealed the remarkable reduction in opal production and southward advancement of sea‐ice covered area during the last glacial maximum, resulting also southward shift of high biological productive area in the northwestern North Pacific. It implies that the substantial reduction in outflux of CO2 to the atmosphere in northwestern North Pacific and the pronounced increase in CO2 sequestering in temperate North Pacific. This could be an additional CO2 reduction mechanism of atmospheric CO2 in the last glacial period.