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2021-12-20

Li, Long, Li, Kan, Giunta, Thomas, Warr, Oliver, Labidi, Jabrane, Lollar, Barbara Sherwood

at seven sites (Kidd Creek, LaRonde, Nickel Rim, Fraser, Copper Cliff South, Thompson, and Birchtree) in the Canadian Shield. Multiple gas components (e.g., H2, O2 and Ar) were integrated with δ15NN2 values to characterize the N2 signatures. Results show that the dissolved N2 in deep subsurface

fracture fluids from the Canadian Shield sites are more 15N-enriched than those from the Fennoscandian Shield and the Witwatersrand Basin in the Kaapvaal Craton. The nitrogen isotopic signatures of the Canadian Shield samples coupled with their hydrogeological framework indicate the N2 was sourced from

enrichment in the N2 samples from the Canadian Shield. A 10-year monitoring study for one of the boreholes, at 2.4 km of the Kidd Creek Observatory, shows a steady decrease in δ15NN2 values with time, which coincides with the temporal isotopic evolution of some other gas components in this borehole. Although

2013-01-01

Syamaladevi, Roopesh M., Lu, Xiaonan, Sablani, Shyam S., Insan, Sunil Kumar, Adhikari, Achyut, Killinger, Karen, Rasco, Barbara, Dhinga, Amit, Bandyopadhyay, Amit, Annapure, Uday

, 0.371 ± 0.012 kJ/m2), suggesting that the wounds on pear surfaces and trichomes (100–1000 μm) on peach surfaces helped to shield and protect microorganisms from UV-C radiation. There was likely a more uniform distribution of bacterial cells onto pear surfaces due to its smaller surface roughness