Technology and Terminology of Knapped Stone - IRIT
Technology and Terminology of Knapped Stone - IRIT
Technology and Terminology of Knapped Stone - IRIT
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5<br />
Fig. 74 — Various examples <strong>of</strong> plunging blades <strong>and</strong> flakes. 1 : on a core with a cortical end. 2 : on a<br />
pyramidal pressure core. 3 : on a core with two opposite striking platforms. 4 : on a bifacial<br />
foliate piece. 5 : plunging burin spall. 6 : plunging Levallois preferential flake.<br />
<strong>and</strong> tears away a whole section <strong>of</strong> the<br />
blank, be it a core, a debitage product or a<br />
tool. A very concave lower face <strong>and</strong> a<br />
generally distal thickening are the two<br />
characteristics <strong>of</strong> plunging. Plunging can<br />
remove (fig. 74) :<br />
- part <strong>of</strong> the cortical cap <strong>of</strong> a core at the<br />
beginning <strong>of</strong> debitage;<br />
- the apex <strong>of</strong> a pyramidal core;<br />
150<br />
- part <strong>of</strong> the opposite striking platform on<br />
a core with two striking platforms;<br />
- on a Levallois core, part <strong>of</strong> the<br />
preparation opposite to the striking<br />
platform;<br />
- the end <strong>of</strong> a burin opposite to that where<br />
the burin blow has been applied;<br />
- part <strong>of</strong> the opposite edge on a bifacial piece;<br />
etc.