Regional geological setting of the Puy-les-Vignes (PLV) deposit. (A) Geological map of the Puy-les-Vignes area and location of the surroundings W occurrences (modified from Chenevoy et al., 1984). (B) Close-up sketch of the breccia pipe structure at surface intersected by wolframite-bearing veins (modified from Weppe, 1951). (C) Interpretative cross-section through the Puy-les-Vignes breccia pipe projected along the NW-SE major axis (modified from Weppe, 1951, 1958). (D) Simplified sketch showing the apparent rotational movement of the clasts within the breccia pipe according to Weppe (1951, 1958).