title: density-separated viral metagenome: basalt-hosted crustal fluid
design: Generated from 10,000 L of pristine, geothermally-heated crustal fluid, collected using a large viral in-situ sampler, consisting of two filters in tandem, a 0.2 m capsule filter upstream of a 100k-Da nominal molecular weight cutoff (NMWCO) filter. Following DNA extraction, metagenome were sequenced on an Illumina Miseq.