Table DR1. Detrital zircon U-Pb geochronologic analyses (San Luis Reservoir, California, USA)

Seven detrital zircon samples were collected throughout San Luis Reservoir study area for U-Pb isotopic analysis. Zircons were recovered using standard separation techniques (e.g., Gehrels et al., 2008), and a random subset of zircon grains from each sample was mounted in a 1-inch epoxy round with grains of Sri Lanka, FC-1, and R33 primary zircon standards. Sample mounts were polished to a depth of about 20 microns and imaged using backscattered electron imaging to guide selection of spot locations. U-Pb dating was completed at the University of Arizona LaserChron Center using laser ablation inductively coupled plasma mass spectrometry following methods described in Gehrels et al. (2008) and Gehrels and Pecha (2014).The purpose of the dataset was to better understand the provenance of forearc deep-water deposits.