Collaborative Study: Re-evaluation of the Late Paleozoic Gondwanan Ice Age in Northern Victoria Land (Antarctica) and Tasmania (Australia)

合作研究：重新评估维多利亚州北部地区（南极洲）和塔斯马尼亚州（澳大利亚）晚古生代冈瓦纳冰期

• 批准号: 0635537
• 负责人: John Isbell
• 金额: --
• 依托单位: University of Wisconsin-Milwaukee
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-09-01 至 2009-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0635537&HistoricalAwards=false
• 关键词: Collaborative; Study; Re; evaluation; Late

AbstractThis award supports a pilot study of deposits from the late Paleozoic Gondwanan ice age. These deposits represent the last time that the earth transitioned from an ice-house to greenhouse world. This project will generate new stratigraphic, sedimentologic, and geochemical data from ice-proximal deposits in Tasmania (Australia). The outcome will be a robust, chronostratigraphic framework of regional scale that can be incorporated into global views. If successful, this study will pave the way work on similar deposits in northern Victoria Land, Antarctica. The results from this work will contribute to models of past climates. In terms of broader impacts, society will benefit from insights gained on rates and magnitudes of climate variability during icehouse climate modes, including changes during the transition from icehouse to greenhouse climate states, which may apply to the current earth's own climate in the near future.

摘要该奖项支持对古生代晚期冈瓦纳冰河时代沉积物的试点研究。这些沉积物代表了地球最后一次从冰库世界转变为温室世界。该项目将从塔斯马尼亚（澳大利亚）的近冰沉积物中生成新的地层学、沉积学和地球化学数据。其结果将是一个强大的区域尺度年代地层框架，可以纳入全球视野。如果成功，这项研究将为南极洲维多利亚州北部类似矿床的研究铺平道路。这项工作的结果将有助于建立过去的气候模型。就更广泛的影响而言，社会将受益于对冰室气候模式期间气候变化率和幅度的见解，包括从冰室气候状态过渡到温室气候状态期间的变化，这可能在不久的将来适用于当前地球本身的气候。