Radiometric dating of sediment cores from three alpine lakes in Utah, United States, with stable isotope data

<p>We collected sediment cores from three alpine lakes in Utah, United States, to isolate dormant <em>Daphnia </em>eggs for a resurrection ecology experiment. Our question was whether radioactive fallout from above-ground nuclear weapons testing at the Nevada Test Site in the 1950s and 1960s caused increased mutation rates and population evolution in <em>Daphnia</em>. That work is ongoing. Here, we publish radioisotope dating profiles from our sediment cores.</p>