TY - RPRT TI - Mapping ancient sedimentary organic matter molecular structure at nanoscales using optical photothermal infrared spectroscopy AU - Aaron M. Jubb AU - Martha Stokes AU - Ryan J. McAleer AU - Paul C. Hackley AU - Eoghan Dillion AU - Jing Qu PY - 2023 DO - 10.1016/j.orggeochem.2023.104569 UR - https://pubs.usgs.gov/publication/70240635 ID - 70240635 ER -