Zierenberg, Robert A.; Goodfellow, Wayne D.; Franklin, James M. (1994): Sulfur isotopic composition of massive sulfide from the Middle Valley sediment-covered seafloor spreading center. U. S. Geological Survey, Reston, VA, United States, In: Lanphere, M. A. (editor), Dalrymple, G. B. (editor), Turrin, B. D. (editor), Abstracts of the eighth international conference on Geochronology, cosmochronology, and isotope geology, C 1107, 370, georefid:1995-001329