Figure 2
From: Geochemistry of Gold Ores Mined During Celtic Times from the North-Western French Massif Central
Geological map of the studied area. The map was simplified from the original geological map of France (J. Chantraine, A. Autran, C. Cavelier, Geological map of France at a 1/1 000 000 scale, BRGM, Orléans, France, 1996). DAO map produced under Adobe Photoshop CS5.1 by C. G. Tămaș. The original geological map can be viewed on the InfoTerre website, which is a free access service offered by the French Geological Survey (http://infoterre.brgm.fr/viewer/LoadContext.do?uuid=cc5b530f-ddf4-464b-9045-2667167bbfbf). The terms of use are reported here (https://www.brgm.eu/scientific-output/digital-data-services/infoterre-portal-access-to-brgm-geoscientific-data).
