Fig. 4: Glendonite and concretion stable isotope data.
From: Cold spells in the Nordic Seas during the early Eocene Greenhouse
Plotted stable isotope data for +15 and +60–62 horizons in the Eocene Fur Formation glendonite and concretions, along with δ13C data for organic matter from decarbonated glendonites and concretions. For comparison, published stable isotope data for concretions of the Fur Formation and glendonites from the early Eocene succession on Svalbard (Basilika Fmn) are also shown4,5.
