F1. Depth profiles of dissolved trace constituents.
F2. Depth profiles of the dissolved 87Sr/86Sr in interstitial water.
F3. Depth profiles of 
18O of interstitial water.
F4. Spider diagrams of trace elements in clay.
T1. Trace element composition of interstitial water.
T2. Isotopic composition of interstitial water.
T3. Trace element composition of clays.
T4. Mineralogical assemblages of clay fraction.
Figures F1-F4
Tables T1-T4
