Variation of seawater 87 Sr/86 Sr thoughout Phanerozoic time. Burke W H,Denison R E,Hetherington E A,Koepnick R B,Nelson H F,Otto J B. The Journal of Geology . 1982
Variation of seawater 87 Sr/86 Sr thoughout Phanerozoic time. Burke W H,Denison R E,Hetherington E A,Koepnick R B,Nelson H F,Otto J B. The Journal of Geology . 1982