Time-Series Benthic Geochemistry on the New England Continental Margin - Controls on Benthic Foraminiferal Distributions and Shell Composition

小行星9529997 在这个项目中，首席研究员将研究底栖有孔虫、有机物沉积孔隙水化学和季节性取自乔治海岸海底的沉积物岩心中的固体化学之间的关系。中心目标是研究所谓的“马肯森效应”的细节-底栖有孔虫碳含量中的13 C部分因上覆水柱中产生的新鲜有机物沉积而明显减少。 这些研究将有助于量化海洋生产力的季节性周期对海底有孔虫古生产力代用指标和海底碳循环的影响。

9529997 McCorkle In this project, the principal investigator will the relationship between benthic foraminifera, organic matter deposition pore water chemistry , and solids chemistry in sediment cores taken seasonally from the sea floor of Georges Bank. The central objective is to study the details of the so-called "Mackensen effect" - the apparent decrease in the fraction of 13C in the carbon content of benthic forams in response to the deposition of fresh organic matter produced in the overlying water column. These studies will help quantify the impact of seasonal cycles of ocean productivity on benthic foraminiferal proxies of paleoproductivity and on carbon cycling at the sea floor.