Dataset of total and nitric acid soluble element concentrations from stream sediments of the Upper Garonne Basin, Val d'Aran, Central Pyrenees

1) For whole rock: sieved <180 µm size fraction, pulverized in a vibrating cup laboratory mill, 0.1 g sample digested in HNO3:HClO4:HF (2.5:2.5:5.0, v/v), doubly evaporated to incipient dryness, addition 1 mL HNO3, and made up to 100 mL with Milli-Q Plus ultrapure water type (18.2 MΩ/cm) ; 2) For nitric acid leaching: 0.1 g sample mixed with 1 mL de HNO3 in 12×100-mm polypropylene test tubes In batch experiments, and made up to 100 mL with Milli-Q Plus ultrapure water type (18.2 MΩ/cm). Final solutions were analysed by HR-ICP-MS. Contact person: Fernandez-Turiel, J. L., [e-mail]