Assessing "lithic sound" to predict a rock's ease of flaking

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Assessing "lithic sound" to predict a rock's ease of flaking

Please use this identifier to cite or link to this item: http://hdl.handle.net/10355/4614

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dc.contributor.advisor Lyman, R. Lee en
dc.contributor.author DeForest, David Scott en_US
dc.date.accessioned 2010-01-12T17:49:07Z
dc.date.available 2010-01-12T17:49:07Z
dc.date.issued 2006 en_US
dc.date.submitted 2006 Fall en
dc.identifier.other DeforestD-121106-T6048 en_US
dc.identifier.uri http://hdl.handle.net/10355/4614
dc.description The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. en_US
dc.description Title from title screen of research.pdf file (viewed on August 22, 2007) en_US
dc.description Includes bibliographical references. en_US
dc.description Thesis (M.A.) University of Missouri-Columbia 2006. en_US
dc.description Dissertations, Academic -- University of Missouri--Columbia -- Anthropology. en_US
dc.description.abstract Objective information concerning "lithic sound's" properties of pitch, duration, and intensity, can inform archaeologists about a stone's candidacy for human use, and whether or not lithic material at a site has been heat treated. A hammer stone machine held and struck specimens under controlled conditions. To process acoustic information, A Kay Computer Speech Laboratory and related software proved effective. Nineteen specimens of stone were tested. Based upon waveform evaluation, heat treated stone had much higher average sound intensity levels than the stone in its unheated condition. Archaeologists could use methods discussed in this study to assess if heat treated siliceous rock is present at sites. After being struck with a hammer stone, significant differences existed concerning the duration and average vibration rates of sound between types of stone, unheated versus heated stone, and high and low quality stone of the same type. Accessory information included observation of how the hammer stone rebounded differently from specimens with obvious flaws, compared to stones with no imperfections. The hammer rebounded farther after striking high quality rock. Knappers use their sense of proprioception to determine a stone's candidacy for reduction. When striking a core stone which will flake predictably, the hand holding the hammer, will rebound quicker and farther back, compared to a low quality stone which absorbs energy. en_US
dc.language.iso en_US en_US
dc.publisher University of Missouri--Columbia en_US
dc.relation.ispartof 2006 Freely available theses (MU) en_US
dc.subject.lcsh Rocks -- Acoustic properties en_US
dc.subject.lcsh Rocks -- Heat treatment en_US
dc.title Assessing "lithic sound" to predict a rock's ease of flaking en_US
dc.type Thesis en_US
thesis.degree.discipline Anthropology en_US
thesis.degree.grantor University of Missouri--Columbia en_US
thesis.degree.name M.A. en_US
thesis.degree.level Masters en_US
dc.identifier.merlin .b59443169 en_US
dc.identifier.oclc 166261978 en_US
dc.relation.ispartofcommunity University of Missouri-Columbia. Graduate School. Theses and Dissertations. Theses. 2006 Theses


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