000			00241nam a2200097 4500
999			_c336272 _d336272
082			_a551.712 _bKRO.A
100			_aKroner,A, et al.Ed.
245			_aArchean geochemistry _cKroner,A, et al.Ed.
260			_aBerlin _c1984 _bSpringer
942			_cBK