Strontium isotope data from well 11/10–1, 9/12–1 and 2/2–2, analysed at the
University of Bergen. Sr ratios were corrected to NIST 987 = 0.710248. The numerical
ages were derived from the SIS look-up table version 3:10/99 of Howarth and McArthur
(1997). NIST – National Institute for
Standards and Technology.