Supplemental material: On the origin of 24-norcholestanes and their use as age-diagnostic biomarkers S.W. Rampen et al. 10.1130/2007100 https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_On_the_origin_of_24-norcholestanes_and_their_use_as_age-diagnostic_biomarkers/12347426 GSA Data Repository Item 2007100, Geology, Vol. 35, p. 419. File size: 3 p., about 201 KB. 2007-01-01 00:00:00 Geoscience