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

9614969弗里德曼该奖项是为了支持一项为期一年的研究，以进一步测试保存在永久冻土中的细菌的使用，作为沉积物沉积和冻结时的古气候指标。 气候变化，特别是重大的气候变化，被认为可以从沉积层的细菌指纹中识别出来。 开展了一个为期一年的试点项目，在南极洲麦克默多干谷地区的一些地点进行了钻探并采集了岩心。 在岩芯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%，最高超过50%）。 这些结果提供了强有力的支持的想法，火星永久冻土层可能包含地面冰和火星上的古代永久冻土层可能包含样本-可能是可行的-生命形式从一个更早的，潮湿的时期。 本项目将继续分析现有的岩心样品

9614969 Friedman 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