LA-ICP-MS U-Pb and Lu-Hf data for Bighorn Basin bentonite zircon

<p>This table contains the U-Pb composition, calculated ages, and Lu-Hf composition for 697 individual zircon analyses from a suite of bentonite deposits collected from the Bighorn Basin, Wyoming, and southwestern South Dakota. All data was acquired using LA-ICP-Ms at the Laserchron Center at the University of Arizona.</p>