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Phylum level classification of clones by glacier (n=32 per glacier; pooled from two holes per glacier per year); (UNC: Unclassified bacteria; ACI: Acidobacteria; ACT: Actinobacteria; BAC: Bacteroidetes; CHL: Chloroflexus; CYA; Cyanobacteria; OP1: OP10; PLA: Planctomycetes; PRB: Proteobacteria).
