In this video we illustrate the production of a large biface finalised to the use of the latter as a fixed element.
The knapper starts to reduce the big flint core from its periphery, detaching at first a primary cortical opening flake thew knapper worked alternately along the core’s periphery, removing a series of flakes from both faces of the core, while using the scar of the previously removed flake as a striking platform for the next as explained by Sharon (2009) in his article on the exploitation of ginat cores.
This documentary was realised on Saturday 12nd of Dicember 2009 in the Parco del Pineto in Rome, Italy.
The authors are Enzo Cocca (obsidian knapping, La Sapienza University) and Andrea Zupancich (Film Making, La Sapienza University). The documentary is edited by A.T.P.G. Society.
Enzo models an obsidian core from Monte Arci, Sardinia (Sc quality from north eastern Monte Arci) in order to obtain an arrow head.
The obsidian has been first selected and worked to create a number of percussion plains by direct percussion. From this prepared core a fair number of flakes have been obtained. At this point the author of the experiment selects the most suitable flake to realise the arrowhead. This flake was retouched with a copper headed tool in order to obtain a marginal retouch on both edges. Finally to make a pedunculated tool, the base was retouched with the same technic.
This video is published with a Creative Commons License.
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All the rights remains to the authors.
A.T.P.G. must be nominated as editor, and http://www.archaeologicaltraces.org as the publication support.