Upper and lower Cretaceous rocks of east-central and northeast New Mexico

Consists of Dakota Group, which includes Romeroville Sandstone (Cenomanian), Pajarito Shale, and Mesa Rica Sandstone (Albian); the underlying Tucumcari Shale (Albian) in Tucumcari area and Glencairn Formation (Albian) in Union County.
State New Mexico
Name Upper and lower Cretaceous rocks of east-central and northeast New Mexico
Geologic age Cenomanian and Albian
Lithologic constituents
Major
Sedimentary > Clastic > Mudstone > Shale (Bed)no lith description on map - description from GEOLEX
Sedimentary > Clastic > Sandstone > Arenite (Bed)no lith description on map - description from GEOLEX
Minor
Sedimentary > Clastic > Siltstone (Bed)no lith description on map - description from GEOLEX
Incidental
Sedimentary > Carbonate > Limestone (Lens)no lith description on map - description from GEOLEX
References
NGMDB product
Counties Colfax - Guadalupe - Harding - Lincoln - Mora - Otero - Quay - San Miguel - Santa Fe - Socorro - Taos - Union