共 77 条
[2]
THE END OF THE CRETACEOUS - SHARP BOUNDARY OR GRADUAL TRANSITION
[J].
SCIENCE,
1984, 223 (4641)
:1183-1186
[4]
ALVAREZ W, 1982, GEOL SOC AM SPEC PAP, V190, P305
[5]
[Anonymous], 1971, PRINCIPLES CHEM SEDI
[6]
Asaro F., 1982, GEOL SOC AM SPEC PAP, V190, P517
[10]
BOHOR BF, 1985, LUNAR PLANET SCI, V16