Late Miocene marginal basin authigenic Pb isotope measurements and standards

Marginal Mediterranean marine sediments from three separate basins were sampled at sub-precessional resolution (~4-10 samples per precessional cycle). Authigenic Pb isotope compositions of the bulk sediment were extracted using acid reductive leaching and measured with MC-ICP-MS.

In addition, strong leaching and total dissolution was applied to a subset of samples. This dataset includes the results of all of the measurements, plus an extensive set of secondary standard measurements performed at the same periods for quality control purposes, on two different MC-ICP-MS (Nu Plasma and Thermo Neptune Plus, GEOMAR Helmholtz Institute for Ocean Research, Kiel). Finally, there is a table of alternative sample ages based on different orbital tuning options (see manuscript text).