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: 0739496
• 负责人: Molly Miller
• 金额: $ 11.55万
• 依托单位: Vanderbilt University
• 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 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0739496&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.

这个项目回答了一个简单的问题：为什么南极洲的沉积岩芯中化石如此之少？中国大陆架？南极洲？中国的底栖生物在生物学上和热带地区一样丰富。分泌贝壳的生物应该在整个地质时期留下痕迹，但事实并非如此。这条线索特别重要，因为这些生物记录区域气候的方式对解释全球气候记录至关重要。本研究采用野外实验和对现代底栖系统的有针对性的观察来研究化石保存所造成的偏见。通过研究一系列受冰影响的栖息地，该项目提供了对碳酸盐保存，沉积速率和埋藏过程的古环境见解;并将提供重建南极新生代历史的新方法。更广泛的影响包括研究生和本科生的研究和教育、将艺术和科学联系起来的本科课程的开发、K12外展、通过网络进行的公众外展以及通过提高对全球气候变化记录的了解来提高社会相关性。