Editing Eraillure

In [[lithic analysis]] (a subdivision of [[archaeology]]), an '''eraillure''' is a flake removed from a [[lithic flake]]'s [[bulb of applied force|bulb of force]], which is a lump left on the ventral surface of a flake after it is detached from a core of [[tool stone]] during the process of [[lithic reduction]].<ref>Hiscock, Peter. (1997).[http://arts.anu.edu.au/arcworld/resources/stonegloss/gloss.htm Glossary of Terms used in "Lithic" Analysis."] {{Webarchive|url=https://web.archive.org/web/20120112093627/http://arts.anu.edu.au/arcworld/resources/stonegloss/gloss.htm |date=2012-01-12 }} Australian National University. Retrieved 2011-12-14.</ref>  The mechanics of eraillure formation are related to the propagation of a [[Hertzian cone]] of force through the [[cryptocrystal]]line matrix of the stone, but the particulars are poorly understood. Eraillures usually form only when a [[hammerstone]] is used for lithic reduction, and then only occasionally; use of 'soft' hammer fabricators made from [[bone]], [[antler]], and [[wood]] produce different flake characteristics but may also produce an eraillure in rare cases.{{cn|date=December 2011}}

== See also ==
* [[Stone tool]]

== References ==
{{Reflist}}

{{Prehistoric technology}}

[[Category:Lithics]]