Dating of hydrothermal scheelite grains (U-Pb using LA-ICP-MS and Sm-Nd using TIMS)?

Does anyone has experience dating scheelite from hydrothermal gold deposit using the following two isotopic systems (U-Pb by LA-ICP-MS and Sm-Nd by TIMS)? Any advice concerning the settings to use...

12 October 2020 6,591 7 View