Nelson, Campbell S; Froggatt, Paul C; Gosson, Gregory J (1986): (Table 1) Stratigraphy of megascopic vitric tephras in DSDP Legs 89 and 90 cores. PANGAEA, https://doi.org/10.1594/PANGAEA.792825, In supplement to: Nelson, CS et al. (1986): Nature, chemistry, and origin of late Cenozoic megascopic tephras in Leg 90 Cores from the Southwest Pacific. In: Kennett, JP; von der Borch, CC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 90, 1161-1173, https://doi.org/10.2973/dsdp.proc.90.126.1986