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GEOCHEMICAL ANALYSIS OF MASSIF ARMORICAIN (FRANCE) SOURCES FOR NEOLITHIC DOLERITE AXES

Abstract : This study presents new geochemical data on dolerites from the Plussulien and Beulin Neolithic quarries in the Massif Armoricain (France) and for dolerite samples from their surrounding local regions. Using the major and trace element data obtained on these rocks, the two quarries and regional dolerite occurrences appear to be clearly distinct. Consequently, a set of chemical criteria is proposed to identify the dolerite axes produced uniquely at the Beulin quarry and to discriminate between the axes produced in the surrounding local region of Beulin, but outside the quarries, and those produced in the local region of Plussulien. These results could also be used, for example, to identify the existence of undiscovered quarries in the Beulin region. This work may provide the breakthrough needed to understand stone axe exchanges during the Neolithic times in northwestern France and beyond.
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http://hal.univ-nantes.fr/hal-02481380
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G. Kerdivel, A. Bezos, C. La, R. Tsobgou Ahoupe. GEOCHEMICAL ANALYSIS OF MASSIF ARMORICAIN (FRANCE) SOURCES FOR NEOLITHIC DOLERITE AXES. Archaeometry, Wiley, 2016, 59 (4), pp.593-611. ⟨10.1111/arcm.12271⟩. ⟨hal-02481380⟩

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