Stratigraphy of the Morrison formation in part of northwestern New Mexico

摘要: In the summer of 1954 while investigating uranium resources northwestern New Mexico, writers noticed that stratigraphic nomenclature Morrison formation in use Laguna area was not consistent with elsewhere region. A review literature led to agreement currently area, such as near Grants, is satisfactory. This usage divides into three members; ascending order they are Recapture, Westwater Canyon, and Brushy Basin members. These members may be recognized have been correlated throughout Mexico. most members, by writers, present interval has previously considered Recapture. The sandstone Canyon our opinion at top Basin. economic importance informally called Jackpile ore-bearing bed.