title: 16S rRNA gene metabarcoding  of Archaea from Hypogenic Cave: clay samples
design: For library preparation, a fragment of the archaeal 16S rRNA regionof around 480 bp was amplied using the primers SSU1ArF (5' TCCGGT TGA TCC YGC BRG 3') and SSU520R (5' GCT ACG RRY GYTTTA RRC 3')