Earth Sciences Postdoctoral Research Fellowship Award

地球科学博士后研究奖学金

• 批准号: 9704806
• 负责人: Linda Ivany
• 金额: $ 7.2万
• 依托单位: Fellowships
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-06-01 至 2001-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9704806&HistoricalAwards=false
• 关键词: Earth; Sciences; Postdoctoral; Research; Fellowship

9704806 Ivany Deciphering the complex relationship between evolutionary change and environmental change requires a detailed and simultaneous record of both variables so that patterns in each can be compared. If the records dovetail, then there is compelling evidence for the role of environment in influencing the direction of evolutionary change. The P.I. will explore this issue with a case study in the Eocene Gulf Coastal Plain. She will construct a temperature curve specific to the coastal region by analyzing the isotopic composition of biogenic carbonates. Secular trends in both temperature and seasonality associated with mid-Eocene to Oligocene global cooling will be examined through geochemical analysis of biogenic carbonates and careful microsampling of growth lines in organisms showing accretionary growth.

小行星9704806 要破解进化变化和环境变化之间的复杂关系，需要同时对这两个变量进行详细的记录，以便对每个变量的模式进行比较。 如果记录吻合，那么就有令人信服的证据表明环境在影响进化变化的方向方面所起的作用。 私家侦探将探讨这个问题的一个案例研究始新世海湾沿岸平原。 她将通过分析生物碳酸盐的同位素组成来构建沿海地区特有的温度曲线。 将通过对生物碳酸盐的地球化学分析和对显示增生生长的生物体的生长线进行仔细的微量取样，研究与始新世中期至渐新世全球变冷有关的温度和季节性的长期趋势。