000			00219nam a2200097 4500
100			_aGSA,
245			_aBullettin of Geol. Soc. America,Vol.113(7-12) _cGSA,
260			_aGSA, _c2001
260			_aGSA, _c2001
942			_cCR
999			_c337466 _d337466