Table 3 Early Maastrichtian temperatures and freshwater inputs for the Cauvery Basin of southern India reconstructed using clumped isotope and δ18O analyses of seasonal growth bands in P. vesicularis.
From: Rainfall seasonality on the Indian subcontinent during the Cretaceous greenhouse
Sample ID | Distance (mm) | δ13C (‰,VPDB) | δ18O (‰,VPDB) | Δ47 (Absolute Scale) | Calculated temperature (°C)# | δ18O* (‰,VSMOW) | Freshwater (%) |
|---|---|---|---|---|---|---|---|
CRE A1 | 4 | 0.41 | −1.62 | 0.71 | 24 | 1.6 | 17 |
CRE A2 | 6 | 0.61 | −2.96 | 0.66 | 37 | 1.7 | 4 |
CRE A3 | 11 | 1.98 | −2.15 | 0.67 | 34 | 1.6 | 1 |
CRE A4 | 12 | 1.12 | −2.54 | 0.70 | 27 | −0.5 | 22 |
CRE A5 | 14 | 1.07 | −2.10 | 0.73 | 21 | 0.2 | 31 |
CRE A6 | 15 | 2.35 | −1.79 | 0.69 | 30 | 1.9 | 5 |
CRE A7 | 16 | 1.66 | −2.58 | 0.67 | 35 | 1.7 | 3 |
CRE A8 | 17 | 3.54 | −3.12 | 0.66 | 37 | 0.7 | 5 |
