Jurassic-Cretaceous
|
201–66
| |
Open marine
|
Cl− at 66 Ma = 19.35 g/L, δ18O = 0‰ throughout the sequence
|
Initial and upper boundary condition
|
Palaeogene
|
66–23
|
0–43
|
Continental
|
Meteoric water (Cl− = 0 g/L, δ18O = −7.7‰) circulating in Malm aquifer
|
Upper boundary condition
|
Aquitanian (and younger?)
|
23–a
|
43–b
|
Hypersaline (partial evaporation of sea-water)
|
Cl− = 70–190 g/L, δ18O = +6‰ in Malm aquifer
|
Upper boundary condition
|
- Late Miocene
|
a–6
|
b–60
|
Continental
|
Meteoric water (Cl− = 0 g/L, δ18O = −8.6‰) circulating in Malm aquifer
|
Upper boundary condition
|