TY  - BOOK
T1  - Comparison of the Cretaceous-Tertiary boundary impact events and the 0.77-Ma Australasian tektite event :relevance to mass extinction /
DA  - 1993.
CY  - [Reston, Va.?] :
CY  - Denver, CO :
AU  - Chao, E. C. T.
VL  - 2050
CN  - QE75
CN  - QE75
PB  - U.S. Dept. of the Interior, U.S. Geological Survey ;
PB  - For sale by Map Distribution,
PP  - [Reston, Va.?] :
PP  - Denver, CO :
PY  - 1993.
N1  - Title on p. [4] of cover: Comparison of the K-T boundary impact events and the Australasian tektite event.
N1  - Shipping list no.: 93-0312-P.
ID  - 147171
KW  - Cretaceous-Paleogene boundary.
KW  - Tektite.
KW  - Extinction (Biology)
TI  - Comparison of the Cretaceous-Tertiary boundary impact events and the 0.77-Ma Australasian tektite event :relevance to mass extinction /
ER  -