[1] He then studied at the Lamont-Doherty Geological Observatory, Columbia University.
[1] He was inducted into the Norwegian Academy of Science and Letters in 1982[3] and the Academia Europaea in 1990.
[4] His work, including his teaching, had a major bearing on the Norwegian petroleum industry.
A submarine volcano at the Vøring Plateau, Eldhø, was named after him in 2021.
Eldholm retired in 2009, but was active as a professor emeritus almost until his death in March 2022, aged 80.