Multistage development of a hydrothermal W deposit during the Variscan late-orogenic evolution: the Puy-les-Vignes breccia pipe (Massif Central, France)

Special Issue Minéralisations périgranitiques

Open Access

Fig. 21

Pressure-temperature reconstruction of the fluid conditions in the Puy-les-Vignes deposit. (A) Representative isochores for the Lc-w and Lw-c fluid inclusions trapped in quartz Q1 and wolframite from the stage II. (B) Representative isochores for the Lc-w and Lw-c fluid inclusions trapped in quartz Q2 from the stage III. (C) Representative isochores for the Lw fluid inclusions trapped in quartz Q1 and Q2 during a late stage. Lithostatic and hydrostatic geothermal gradients between 40 and 70 °C km⁻¹ are shown for comparison.

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