TY - RPRT TI - 13C Nuclear magnetic resonance studies of kerogen from Cretaceous black shales thermally altered by basaltic intrusions and laboratory simulations AU - L.W. Dennis AU - G.E. Maciel AU - Patrick G. Hatcher AU - Bernd R. T. Simoneit PY - 1982 DO - 10.1016/0016-7037(82)90046-1 UR - https://pubs.usgs.gov/publication/70011873 ID - 70011873 ER -