TY  - BOOK
AU  - Dickinson, Kendell A.,
CN  - I 19.76:
CY  - [Reston, Va.] :
CY  - [Denver, Colo. :
DA  - 1994.
ID  - 196647
KW  - Geology, Stratigraphic
KW  - Groups (Stratigraphy)
KW  - Mines and mineral resources
N1  - Cover title.
N1  - Distributed to depository libraries in microfiche.
N1  - Shipping list no.: 95-0614-M.
PB  - U.S. Dept. of Interior, U.S. Geological Survey ;
PB  - Open-File Reports Section, distributor],
PP  - [Reston, Va.] :
PP  - [Denver, Colo. :
PY  - 1994.
T1  - Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska
TI  - Preliminary chemical and mineralogical analyses of the major volcanic ash beds in the Oligocene Brule Formation, northwestern Nebraska
VL  - 94-292
ER  -