Cristin-resultat-ID: 1689649
Sist endret: 6. august 2019 10:05
NVI-rapporteringsår: 2019
Resultat
Vitenskapelig artikkel
2019

Color Me Heated? A Comparison of Potential Methods to Quantify Color Change in Thermally-Altered Rocks

Bidragsytere:
  • Silje Evjenth Bentsen og
  • Sarah Jacoba Deborah Wurz

Tidsskrift

Journal of Field Archaeology
ISSN 0093-4690
e-ISSN 2042-4582
NVI-nivå 2

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2019
Publisert online: 2019
Volum: 44
Hefte: 4
Sider: 215 - 233

Importkilder

Scopus-ID: 2-s2.0-85063607786

Beskrivelse Beskrivelse

Tittel

Color Me Heated? A Comparison of Potential Methods to Quantify Color Change in Thermally-Altered Rocks

Sammendrag

This study investigates and compares methods to quantify color changes in quartzite rocks after repeated heating episodes. We collected quartzite samples from the southern Cape coast, South Africa, and heated them three times in experimental fires. We recorded the colors of the samples before and after heating using visual observation, Munsell color notations, Munsell color notations converted to RGB values, and digital image analysis. The methods are also tested on potentially heated and potentially unheated archaeological samples from Klasies River main site, South Africa. It was possible to distinguish between unheated and repeatedly experimentally heated quartzite using visual observation and Munsell color notation, but a large proportion of repeatedly heated samples appeared unaffected by the heat. The digitally-captured color values best discriminated color changes after heating. Color values of repeatedly heated experimental samples overlap with color values of potentially heated archaeological samples.

Bidragsytere

Aktiv cristin-person

Silje Evjenth Bentsen

  • Tilknyttet:
    Forfatter
    ved University of the Witwatersrand, Johannesburg
  • Tilknyttet:
    Forfatter
    ved Institutt for arkeologi, historie, kultur- og religionsvitskap ved Universitetet i Bergen

Sarah Jacoba Deborah Wurz

  • Tilknyttet:
    Forfatter
    ved University of the Witwatersrand, Johannesburg
  • Tilknyttet:
    Forfatter
    ved Institutt for arkeologi, historie, kultur- og religionsvitskap ved Universitetet i Bergen
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