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Heritage Science
Fig. 2 | Heritage Science

Fig. 2

From: Calcareous nannofossil assemblage in paintings chalk ground for provenance analysis: three original paintings compared to european source materials

Fig. 2

Geological map (EGDI 1:1 Million pan-European Surface Geology, harvested from INSPIRE conformant National WFS services on GeologicUnit) of carbonates deposited from Permian (Paleozoic) onwards in Central Western Europe. Natural and processed chalks used for this study and region of the painting micro-samples [16]. The grey areas on the map are other rock types unrelated to this study

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