Lake Fryxell 2022-2023 benthic microbial mat thickness and number of laminae

This dataset contains measurements of microbial mat thickness and number of laminae from Lake Fryxell, McMurdo Dry Valleys, Antarctica. Holes were melted through the ice cover of Lake Fryxell, which allowed tethered divers to collect benthic microbial mats (non-liftoff and liftoff) and microbial mats at the ice-water interface (float mats). Benthic non-liftoff and liftoff mat samples were collected from 4.3 m (n=4), 6.1 m (n=4), and 7.9 m (n=4) depths. Float mats were collected from the ice-water interface above 4.3 m (n=4), 6.1 m (n=4), and 7.9 m (n=5) depths. The mats were dissected along vertical cross sections in the field to measure mat thickness and number of laminae. Additional funding for this work was provided by the NASA Solar System Workings Program (Award #80NSSC22K0709).

本数据集包含采自南极洲麦克默多干谷（McMurdo Dry Valleys）费尔克斯湖（Lake Fryxell）的微生物席（microbial mat）厚度与层理数测量数据。研究人员通过热融方式在费尔克斯湖冰盖钻制热融孔洞，使系留潜水员可采集底栖微生物席（非脱落型与脱落型）以及冰-水界面处的浮席（float mats）。底栖非脱落型与脱落型微生物席样本采集自4.3米（n=4）、6.1米（n=4）及7.9米（n=4）水深。浮席样本则采集自对应水深上方的冰-水界面，其中4.3米水深上方n=4、6.1米水深n=4、7.9米水深n=5。研究人员在野外沿垂直切面对采集的微生物席进行剖切，以测量其厚度与层理数。本研究的额外资助来自美国国家航空航天局（NASA）太阳系工作项目（资助编号：80NSSC22K0709）