Collaborative Research: Antarctic Permafrost, Cenozoic Paleoenvironment, Ground Ice Stability.

合作研究：南极永久冻土、新生代古环境、地面冰稳定性。

• 批准号: 9615209
• 负责人: Gary Wilson
• 金额: --
• 依托单位: Ohio State University Research Foundation -DO NOT USE
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1997
• 资助国家: 美国
• 起止时间: 1997-09-15 至 1999-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9615209&HistoricalAwards=false
• 关键词: Collaborative; Research; Antarctic; Permafrost; Cenozoic

9615209 Wilson This award is for support for a one year study to further test the use of bacteria preserved in permafrost, as indicators of paleoclimate at the time the sediments were deposited and frozen. Changes in climate, especially major ones, are thought to be recognizable in the bacterial fingerprints of the sediment layers. A one year pilot project was conducted in which drilling was performed and cores were collected at a number of sites in the McMurdo Dry Valleys region of Antarctica. Viable bacteria and bacterial products (methane and enzymes) were found in the cores. The ice content of all samples was unexpectedly high (at least 25% and up to over 50%). These results provide strong support to the idea that Martian permafrost may contain ground ice and that ancient permafrost on Mars may contain samples-possibly viable-of life forms from an earlier, wetter period. Continued analyses of the existing core samples will be undertaken in this project

9615209 Wilson 该奖项用于支持一项为期一年的研究，以进一步测试永久冻土中保存的细菌的使用，作为沉积物沉积和冻结时古气候的指标。 人们认为，气候变化，尤其是重大气候变化，可以通过沉积物层的细菌指纹来识别。 开展了为期一年的试点项目，在南极洲麦克默多干谷地区的多个地点进行了钻探并收集了岩心。 在岩心中发现了活细菌和细菌产物（甲烷和酶）。 所有样品的冰含量都出乎意料地高（至少25%，最多超过50%）。 这些结果有力地支持了这样的观点：火星永久冻土可能含有地面冰，并且火星上的古代永久冻土可能含有来自更早、更湿润时期的生命形式样本（可能是可行的）。 该项目将继续对现有岩心样本进行分析