TY  - BOOK
AU  - Chao, E. C. T.
CN  - I 19.76:
CY  - [Denver, Colo.?] :
DA  - [1990?]
ID  - 217699
KW  - Rare earth metals.
KW  - Geology, Stratigraphic
KW  - Ore deposits
KW  - Mines and mineral resources
N1  - Cover title.
N1  - Distributed to depository libraries in microfiche.
PB  - U.S. Dept. of the Interior, U.S. Geological Survey,
PP  - [Denver, Colo.?] :
PY  - [1990?]
T1  - Origin and ages of mineralization of Bayan Obo, the world's largest rare earth ore deposit, Inner Mongolia, China
TI  - Origin and ages of mineralization of Bayan Obo, the world's largest rare earth ore deposit, Inner Mongolia, China
VL  - 90-538
ER  -