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14 octobre 2009
- handle: 10670/1.4c7oo1
- isbn: 978 1 4073 0831 9
- hal: hal-04440763
http://creativecommons.org/licenses/by-nc-nd/ , info:eu-repo/semantics/OpenAccess
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Cyril Marcigny et al., « The flint mine of Ri «Le Fresne» », HAL-SHS : archéologie, ID : 10670/1.4c7oo1
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The flint mine of Ri is located at +200 to +205m NGF (Nivellement Général de la France) on a southeastwardslope, in the north of the Houay’s Valley, whose eponym river is a tributary of the Orne. The rawmaterial mined at this site has the shape of spherical mid-grain-sized pebbles, measuring 20cm in diameterand 50cm in length. They outcrop in a powdery limestone layer, 1.2m in depth at the southern end of theexcavated area to 4.5m at the northern end. From shallow to deep areas, the infrastructure of the mine variesfrom incurved holes to 30 square meters pits radiating a network of small galleries and extensions. Whilesome of these galleries remained unfi lled, most pits were refi lled immediately after the extraction of fl int.Their walls contain a great number of digging tool traces. Twenty eight radiocarbon dates have been obtainedon deer antlers recovered from the entire surface of the excavation, situating the mine in the second half ofthe fourth millennium BC.