COLLABORATIVE RESEARCH: A Multi-Proxy Search for the Deglacial Deep Sea Carbonate Preservation Maximum

该合同将提供资金，以采用多指标方法调查去冰期深海碳酸盐保存最大值的规模，其中包括一种新的大宗沉积物方解石溶解指标、门纳第碎屑指数(MFI)以及来自太平洋和印度洋的多个岩心。具体地说，PI将把MFI应用于深海沉积物，试图解释为什么相对于其他替代指标，MFI没有出现保护高峰。这项工作的结果将为假设提供一个重要的测试，这些假设将大气中二氧化碳的消融上升与深水团通风的增加联系起来。更广泛的影响包括本科生参与研究活动以及成果的科学和公共传播，以及公共外联活动，如超级科学星期六的活动，在www.realClimate ate.org上的帖子，以及在学生奖学金日的年度学生展示。这个项目还汇集了来自一流研究机构和一个主要的本科教学机构的合作者。

This award will provide funds to investigate the magnitude of the deglacial deep-sea carbonate preservation maximum with a multi-proxy approach that includes a new bulk sediment calcite dissolution proxy, the menardii fragmentation index (MFI), and multiple cores from the Pacific and Indian Oceans. Specifically, the PI will apply the MFI to deep sea sediments in an attempt to explain why a preservation spike is not seen with the MFI relative to other proxies. Results of this work will provide a significant test of hypotheses that link the deglacial rise in atmospheric CO2 to increased ventilation of deep water masses. Broader Impacts include undergraduate involvement in both research activities and the scientific and public dissemination of results as well as public outreach events such as activities for Super Science Saturday, postings on www.realclimate.org and annual student presentations at Student Scholarship Day. This project also brings together collaborators from premier research institutions and a primarily undergraduate teaching institution.