TY  - RPRT
TI  - Mineral, chemical and textural relationships in rhythmic-bedded, hydrocarbon-productive chalk of the Niobrara Formation, Denver Basin, Colorado ( USA).
AU  - R. M. Pollastro
AU  - C.J. Martinez
PY  - 1985
UR  - https://pubs.usgs.gov/publication/70013414
ID  - 70013414
ER  -