This dataset contains molybdenum and uranium concentrations; uranium isotope compositions; pertinent major element concentrations; and total organic carbon contents of black shales from the ~2 Ga upper Zaonega Formation, NW-Russia. The samples originate from the Onega Parametric Borehole (OPH). This data was collected via X-ray fluorescence spectroscopy, multi-collector inductively-coupled plasma mass spectrometry and carbon analysis
