Eocene Terrestrial Palynology of Seymour Island, Antarctica

南极洲西摩岛始新世陆地孢粉学

• 批准号: 9019378
• 负责人: Rosemary Askin
• 金额: $ 7.81万
• 依托单位: University of California-Riverside
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-01 至 1994-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9019378&HistoricalAwards=false
• 关键词: Eocene; Terrestrial; Palynology; Seymour; Island

This award supports a study to document and interpret the spore and pollen assemblages recovered from the Eocene deltaic La Meseta Formation of Seymour Island, northeastern Antarctic Peninsula. These spores and pollen were derived from land plants growing on the Eocene Antarctic Peninsula, at a time when the land connections with the rest of Gondwana were severed. The Eocene spore and pollen assemblages reflect the vegetation during the last interval of south polar warmth in earth history - a time when evolutionary innovation was still apparent in the southern high latitudes. Of special interest are postulated paleoclimatic fluctuations during Eocene, and the floristic and paleoclimatic changes near the Eocene/Oligocene boundary which may be recorded in the uppermost La Meseta Formation.

该奖项支持一项研究，记录和解释从南极半岛东北部西摩岛始新世三角洲拉梅塞塔组中发现的孢子和花粉组合。 这些孢子和花粉源自始新世南极半岛上生长的陆地植物，当时与冈瓦纳其他地区的陆地联系被切断。 始新世孢子和花粉组合反映了地球历史上最后一个南极温暖时期的植被——当时南部高纬度地区的进化创新仍然很明显。 特别令人感兴趣的是始新世期间假设的古气候波动，以及始新世/渐新世边界附近的植物区系和古气候变化，这些变化可能记录在最上面的拉梅塞塔组中。