McDougall, I. (1977): Potassium-argon dating of glauconite from a greensand drilled at Site 270 in the Ross Sea, DSDP Leg 28. Texas A & M University, Ocean Drilling Program, College Station, TX, United States, Initial Reports of the Deep Sea Drilling Project, 36 (Ushuaia, Argentina to Rio de Janeiro, Brazil, April-May 1974), 1071-1072, georefid:1977-040628