TY - RPRT TI - Organic petrology of peak oil maturity Triassic Yanchang Formation lacustrine mudrocks, Ordos Basin, China AU - Paul C. Hackley AU - Lixia Zhang AU - Tongwei Zhang PY - 2017 DO - 10.1190/int-2016-0111.1 UR - https://pubs.usgs.gov/publication/70240669 ID - 70240669 ER -