Radiometric age determinations for basements of ODP Sites 123-765 and 123-766, supplement to: Ludden, John N (1992): Radiometric age determinations for basement from Sites 765 and 766, Argo Abyssal Plain and northwestern Australian Margin. In: Gradstein, FM; Ludden, JN; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 123, 557-559

John N Ludden
The results of experiments in 40Ar/39Ar age dating using fresh basement material from Sites 765 and 766 of Leg 123 of the Ocean Drilling Program are inconsistent and cannot be used to constrain the basement age of the Argo Abyssal Plain in the Indian Ocean. However, a celadonite sample, which was precipitated during a low-temperature alteration event that affected the basement at Site 765, yielded a K-Ar age of 155.3 ±3.4 Ma. Celadonites, which have...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.