Fluid Dynamics in a Thrust Fault Inferred from Petrology and Geochemistry of Calcite Veins: An Example from the Southern Pyrenees

Figure 12

(a) Elemental composition (Mg, Fe, Mn, and Sr) in ppm of calcite cements and host rocks. Bars indicate maximum, minimum, and average composition. (b) PAAS-normalized Ce/Ce vs. Pr/Pr crossplot showing the Ce and Pr anomalies of calcite cements and host rocks using the method of [62] modified by [63]. Field I: no anomaly. Field IIa: positive La anomaly and no Ce anomaly. Field IIb: negative La anomaly and no Ce anomaly. Field IIIa: positive Ce anomaly. Field IIIb: negative Ce anomaly. Field IV: positive Ce and La anomalies. (c) PAAS-normalized rare elements and yttrium (REY) patterns of calcite cements and host rocks.

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