Triassic Paleosols, Paleoclimate and Vegetation of Antarctica

南极洲三叠纪古土壤、古气候和植被

• 批准号: 9315228
• 负责人: Gregory Retallack
• 金额: $ 16.66万
• 依托单位: University of Oregon Eugene
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-01 至 1996-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9315228&HistoricalAwards=false
• 关键词: Triassic; Paleosols; Paleoclimate; Vegetation; Antarctica

9315228 Retallack This award supports a study of Triassic paleosols in South Victoria Land and in the Shackleton Glacier area of the Transantarctic Mountains in order to extract information about climatic conditions and about extant vegetation. This part of Antarctica is known to represent a continental interior environment that was in a near polar position during the Triassic. This region was hospitable enough to support broadleaf forests as well as large amphibians and reptiles. However, details of the paleoenvironments that would help differentiate between, for example, woodland and shrub-land remain obscure. Detailed study of Quaternary paleosols in many parts of the world has proved very useful to understanding paleoenvironments. Extension of these types of studies to the Triassic is feasible at this time. Comparison of Triassic paleosols from Antarctica to Quaternary and recent soils from temperate regions would improve our understanding of climatic conditions and ecological systems and would provide important information for global circulation climate models. ***

9315228 Retallack该奖项支持对南维多利亚地和横贯南极山脉沙克尔顿冰川地区三叠纪古土壤的研究，以提取有关气候条件和现存植被的信息。 南极洲的这一部分被认为代表了三叠纪期间接近极地的大陆内部环境。 这一地区的气候适宜，足以支持阔叶林以及大型两栖动物和爬行动物的生存。 然而，有助于区分林地和灌木地等古环境的细节仍然模糊不清。 对世界许多地区第四纪古土壤的详细研究对了解古环境是非常有用的。 将这些类型的研究扩展到三叠纪在这个时候是可行的。 通过对南极三叠纪古土壤和第四纪古土壤以及温带地区现代土壤的对比研究，可以加深对气候条件和生态系统的认识，并为全球环流气候模式的建立提供重要信息。 ***