Results: 1 - 2 of 2
Dec 31, 1973
Earth Sciences Report
… largely non-marine, of Upper Cretaceous age and some of Tertiary … has deformed the Upper and Lower Cretaceous clastics of the …
Oct 31, 2003
Geo-Note
… (Birch Mountains) pipes contain lower ε Nd , higher 87 Sr/ 86 Sr, … age of the NAKP is Late Cretaceous (Coniacian to …