TY - RPRT TI - Vitrinite reflectance geothermometry and apparent heating duration in the Cerro Prieto geothermal field AU - C.E. Barker AU - W.A. Elders PY - 1981 DO - 10.1016/0375-6505(81)90005-5 UR - https://pubs.usgs.gov/publication/70011755 ID - 70011755 ER -