000 00297nam a2200097 4500
100 _aUniversity of Chicago Press
245 _aJournal of Geology,vol.103(1-6)
_cUniversity of Chicago Press
260 _aUniversity of Chicago Press
_c1995
260 _aUniversity of Chicago Press
_c1995
942 _cCR
999 _c337096
_d337096