TY - RPRT TI - Thermal evolution of graptolite and solid bitumen properties at high maturity under natural and artificial conditions AU - Jianyang Song AU - Paul C. Hackley AU - Margaret M. Sanders AU - Aaron M. Jubb AU - Qingyong Luo PY - 2023 DO - 10.1016/j.coal.2023.104269 UR - https://pubs.usgs.gov/publication/70245382 ID - 70245382 ER -