A Deep Alteration and Oxidation Profile in a Shallow Clay Aquitard: Example of the Tégulines Clay, East Paris Basin, France

<div>Profiles of clay, carbonates, and (quartz + K-feldspar) silty contents as a function of depth relative to the top of Greensands. Dashed lines indicate the limits of the three units defined in the Tégulines Clay.</div>

Geofluids

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Figure 2

Figure 2: A Deep Alteration and Oxidation Profile in a Shallow Clay Aquitard: Example of the Tégulines Clay, East Paris Basin, France 