SGER: Accumulation Histories in Carbonate Poor Sediments

该项目将使用两种新的、有前途的技术来解决海洋中无法使用传统计算积累方法的地区有机质积累的重要问题。这些方法依赖于方解石的存在，地球化学分析可以同时提供年龄控制和推断沉积物的产量和碳通量。方解石零星或不存在的地区是世界上最有生产力的地区之一（南北高纬度地区、大陆边缘地区），在这些地区，碳积累的变化可能对全球碳收支产生最大的影响。如果提议的工作成功，它将为解决目前尚未得到充分研究的世界海洋部分的碳积累问题打开大门。

This project will use two new and promising techniques to address the important question of accumulation of organic matter in regions of the ocean where traditional methods of calculating accumulation cannot be used. Those methods depend on the presence of calcite, of which geochemical analyses can simultaneously provide age control and inferred production and carbon flux to the sediments. Regions with sporadic or absent calcite are among the most productive in the world (high northern and southern latitudes, continental margins), where the changes in accumulation are likely to have the greatest effect upon global carbon budgets. If the proposed work is successful, it opens the door to addressing questions of carbon accumulation in the present-understudied parts of the world ocean.