Age determination of ODP Leg 120 samples, supplement to: Whitechurch, Hubert; Montigny, R; Sevigny, James H; Storey, Michael; Salters, Vincent J M (1992): K-Ar and 40Ar/39Ar ages of central Kerguelen Plateau basalts. In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 71-77

Hubert Whitechurch, R Montigny, James H Sevigny, Michael Storey & Vincent J M Salters
Conventional K-Ar and 40Ar/39Ar analyses on whole-rock samples are reported for basaltic samples retrieved on the Central and Southern Kerguelen plateaus during Ocean Drilling Program Leg 120. Sites 747, 749, and 750 recovered basalts from the plateau basement, whereas Site 748 drilled a lava flow interbedded with sediments of probable Albian age.The freshest core basalts from the basement yielded dates falling in the 110-100 m.y. interval. Sample 120-749C-15R-3 (26-31 cm) gave conventional K-Ar, total fusion,...
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