Experimental Study on Heat Alteration of Palaeolithic Material: Preliminary Results from Shale in the Northeastern Region of Japan

dc.contributor.author Yonekura, Kaoru en_US
dc.date.accessioned 2013-05-23T18:13:27Z
dc.date.available 2013-05-23T18:13:27Z
dc.date.issued 2010 en_US
dc.description.abstract In order to obtain a better understanding of the intentional thermal alteration of Palaeolithic materials in the northeastern region of Japan, heating experiments were carried out on two types of shale samples. Mechanical properties such as strength and hardness as well as surface morphology were analyzed before and after heating. As a result, a functional change was observed in mechanical factors after heating. A hard shale sample comprising small grains exhibited a significant decrease in strength and noticeable increase in hardness after heating. On the other hand, shale comprising larger crystal grains exhibited an increase in both strength and hardness values. Moreover, smoother surfaces were observed through SEM analysis in both samples after heating. These results lead us to the conclusion that the heating process, especially in the case of harder shale with higher strength values, might have modified material properties such as flaking characteristics as well as functional attributes that are relevant to hardness. en_US
dc.format.extent 15 pages en_US
dc.identifier.issn 0066-8435 (Print) en_US
dc.identifier.issn 1535-8283 (E-ISSN) en_US
dc.identifier.uri http://hdl.handle.net/10125/29103
dc.language.iso en-US en_US
dc.publisher University of Hawai'i Press (Honolulu) en_US
dc.relation.ispartofseries Volume 49 en_US
dc.relation.ispartofseries Number 2 en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States en_US
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ en_US
dc.subject thermal alteration en_US
dc.subject Japan en_US
dc.subject Palaeolithic en_US
dc.subject stone tools en_US
dc.subject flexural strength en_US
dc.subject microhardness en_US
dc.subject scanning electron microscopy en_US
dc.subject.lcsh Prehistoric peoples--Asia--Periodicals. en_US
dc.subject.lcsh Prehistoric peoples--Oceania--Periodicals. en_US
dc.subject.lcsh Asia--Antiquities--Periodicals. en_US
dc.subject.lcsh Oceania--Antiquities--Periodicals. en_US
dc.subject.lcsh East Asia--Antiquities--Periodicals. en_US
dc.title Experimental Study on Heat Alteration of Palaeolithic Material: Preliminary Results from Shale in the Northeastern Region of Japan en_US
dc.type Other en_US
dc.type.dcmi Text en_US
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