Open Access
Table 5
Stable isotope data for lacustrine limestones at Créchy and Montaigu-le-Blin.
| Age | Biozone | Nodules | δ18OPDB | δ13CPDB |
|---|---|---|---|---|
| Aquitanian | MN2 | (4)-MLB | −4.5 | −9.1 |
| Chattian/ Aquitanian boundary |
MP30/MN1 | (3)-CRE | −5.1 | −4.5 |
| Chattian | MP30 | (2)-CRE (1)-CRE |
−4.5 −4.3 |
−5.4 −4.1 |
| MP29 |
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