000
00218nam a2200097 4500
100
_a
GSA,
245
_a
Bullettin of Geol. Soc. America,vol.90(7-12)
_c
GSA,
260
_a
GSA,
_c
1979
260
_a
GSA,
_c
1979
942
_c
CR
999
_c
336937
_d
336937