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

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dc.contributor.author Yonekura, Kaoru
dc.date.accessioned 2013-05-23T18:13:27Z
dc.date.available 2013-05-23T18:13:27Z
dc.date.issued 2010
dc.identifier.issn 0066-8435 (Print)
dc.identifier.issn 1535-8283 (E-ISSN)
dc.identifier.uri http://hdl.handle.net/10125/29103
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.
dc.format.extent 15 pages
dc.language.iso en-US
dc.publisher University of Hawai'i Press (Honolulu)
dc.relation.ispartofseries Volume 49
dc.relation.ispartofseries Number 2
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/
dc.subject thermal alteration
dc.subject Japan
dc.subject Palaeolithic
dc.subject stone tools
dc.subject flexural strength
dc.subject microhardness
dc.subject scanning electron microscopy
dc.subject.lcsh Prehistoric peoples--Asia--Periodicals.
dc.subject.lcsh Prehistoric peoples--Oceania--Periodicals.
dc.subject.lcsh Asia--Antiquities--Periodicals.
dc.subject.lcsh Oceania--Antiquities--Periodicals.
dc.subject.lcsh East Asia--Antiquities--Periodicals.
dc.title Experimental Study on Heat Alteration of Palaeolithic Material: Preliminary Results from Shale in the Northeastern Region of Japan
dc.type Other
dc.type.dcmi Text
Appears in Collections: Asian Perspectives, 2010 - Volume 49, Number 2 (Fall)


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