Collaborative Research: Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores

合作研究：将现代底栖群落和埋藏过程与南极核心地层记录联系起来

• 批准号: 0739512
• 负责人: Sally Walker
• 金额: $ 12.02万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-09-01 至 2012-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0739512&HistoricalAwards=false
• 关键词: Collaborative; Research; Linking; Modern; Benthic

This project answers a simple question: why are there so few fossils in sediment cores from Antarctica?s continental shelf? Antarctica?s benthos are as biologically rich as those of the tropics. Shell-secreting organisms should have left a trail throughout geologic time, but have not. This trail is particularly important because these organisms record regional climate in ways that are critical to interpreting the global climate record. This study uses field experiments and targeted observations of modern benthic systems to examine the biases inflicted by fossil preservation. By examining a spectrum of ice-affected habitats, this project provides paleoenvironmental insights into carbonate preservation, sedimentation rates, and burial processes; and will provide new approaches to reconstructing the Cenozoic history of Antarctica. Broader impacts include graduate and undergraduate research and education, development of undergraduate curricula to link art and science, K12 outreach, public outreach via the web, and societal relevance through improved understanding of records of global climate change.

该项目回答了一个简单的问题：为什么来自南极洲大陆架的沉积物岩心中的化石很少？南极洲的Benthos在生物学上与热带地区一样丰富。分泌壳的生物应该在整个地质时期都留下一条痕迹，但没有。这条路线尤其重要，因为这些生物体以解释全球气候记录至关重要的方式记录了区域气候。这项研究使用现代底栖系统的现场实验和针对性观察来检查化石保存所造成的偏见。通过检查一系列受冰造成的栖息地，该项目为碳酸盐保存，沉积率和埋葬过程提供了古环境见解。并将提供新的方法来重建南极洲的新生代历史。更广泛的影响包括研究生和本科研究和教育，开发本科课程以将艺术与科学联系起来，K12外展，通过网络进行公共宣传以及通过改进对全球气候变化记录的理解，以提高社会意义。