Downborehole video and thin section fluorescence mapping describing banded iron formation accessed by the Soudan Underground Mine State Park

These data describe mineral-biomass aggregates collected from boreholes at the Soudan Underground Mine State Park, Soudan, MN, USA. These samples were collected as part of a study looking at biogeochemical cycling and microbial community structure in the deep continental biosphere.The data in this set include:Downborehole video filmed prior to sample collectionX-ray fluorescence (XRF) maps of a thin section prepared from the banded iron formation (BIF) housing the mineral aggregates collected at the XRF microprobe beamline 4-BM at the National Synchrotron Light Source - II.The set also includes a readme.txt file including more information about the methods used to collect this data.