DISTRIBUTION OF CARBONATE IN SURFACE SEDIMENTS OF PACIFIC OCEAN
DISTRIBUTION OF CARBONATE IN SURFACE SEDIMENTS OF PACIFIC OCEAN
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DOI：
10.1029/jc081i015p02617
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发表时间：
1976-01-01
期刊：
影响因子：
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通讯作者：
MAYER, LA
中科院分区：
文献类型：
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作者：
BERGER, WH;ADELSECK, CG;MAYER, LA
根据斯克里普斯海洋学研究所世界海洋沉积物数据库储存的80个参考资料中的1 313个点，重新绘制了太平洋海底碳酸盐分布图。百分比分布图和碳酸盐与深度图通常与以前公布的信息一致，反映了碳酸盐沉积的主要控制因素（深度，水文，肥力和沉积过程）。虽然碳酸盐分布在试图构建溶解曲线时用途有限，但主要趋势是可识别的。特别是，赤道方解石补偿深度（CCD）的降低程度连同赤道和亚热带环流之间的供应率的差异的估计，可以用来估计溶解速率增加以下的溶跃层。这里定义的“CCD过渡”概念的清晰度有相当大的变化。这种变化被认为反映了溶解速率梯度和再沉积过程（碳酸盐、深海沉积物、方解石和补偿深度）的地理差异。
The distribution of carbonate on the floor of the Pacific has been remapped on the basis of 1313 points from 80 references stored in the World Ocean Sediment Data Bank of Scripps Institution of Oceanography. Percent distribution maps and carbonate versus depth diagrams generally agree with previously published information and reflect the major controlling factors of carbonate sedimentation (depth, hydrography, fertility, and sedimentary processes). While carbonate distributions are of limited use in attempting to construct dissolution profiles, major trends are identifiable. In particular, the degree of lowering of the equatorial calcite compensation depth (CCD) together with an estimate of the differences in supply rates between the equator and the subtropical gyre can be used to estimate dissolution rate increase below the lysocline. There is considerable variation in the sharpness of the ‘CCD transition’ a concept defined here. This variation is thought to reflect both geographic differences in dissolution rate gradients and redeposition processes (carbonate, deep‐sea sediments, calcite, and compensation depth).