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首页> 外文期刊>Annual review of marine science >Insights into Particle Cycling from Thorium and Particle Data
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Insights into Particle Cycling from Thorium and Particle Data

机译：从Thor和粒子数据洞察粒子循环

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Marine particles are a main vector by which the biological carbon pump in the ocean transfers carbon from the atmosphere to the deep ocean. Marine particles exist in a continuous spectrum of sizes, but they can be functionally grouped into a small, suspended class (which constitutes most of the total particle mass) and a large, sinking class (which contributes most of the particle flux). These two classes are connected by aggregation and disaggregation processes. The interplay of processes that create, aggregate, and destroy marine particles determines the strength and transfer efficiency of the biological pump. Measurements of radiocarbon, barium, and organic biomarkers on suspended and sinking particles have provided qualitative insights into particle dynamics, and measurements of thorium isotopes have provided quantitative estimates of rates. Here, we review what has been learned so far about particle dynamics in the ocean from chemical measurements on suspended and sinking particles. We then discuss future directions for this approach.
机译：海洋颗粒是海洋生物碳泵将碳从大气中转移到深海的主要载体。海洋颗粒以大小连续的形式存在，但可以在功能上分为小的悬浮类（占总颗粒质量的大部分）和较大的沉没类（占颗粒通量的大部分）。这两类通过聚集和分解过程相连。产生，聚集和破坏海洋颗粒的过程之间的相互作用决定了生物泵的强度和转移效率。对悬浮颗粒和沉没颗粒的放射性碳，钡和有机生物标记物的测量提供了对颗粒动力学的定性见解，is同位素的测量提供了速率的定量估计。在这里，我们将回顾到目前为止从悬浮和沉没粒子的化学测量中了解到的关于海洋中粒子动力学的知识。然后，我们讨论此方法的未来方向。

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